Nootropics Depot Cistamax: The Ultimate Cistanche Complex for Testosterone, Vitality, and Performance

Nootropics Depot Cistamax: The Ultimate Cistanche Complex for Testosterone, Vitality, and Performance

Cistamax from Nootropics Depot combines three cistanche extracts with PrimaVie shilajit, pregnenolone, and DHEA for comprehensive testosterone support. Get 85mg echinacoside per serving plus hormone precursors in one convenient formula. More bioactives, better value than buying separately.

Cistanche tubulosa has earned its legendary status as "desert ginseng" through centuries of traditional use and preliminary modern scientific research. From reportedly sustaining Genghis Khan's army through harsh desert crossings to supporting natural testosterone production in today's research, this remarkable herb continues to deliver powerful benefits for male vitality and overall wellness.

Cistamax: Elite-Tier Cistanche Natural Testosterone Booster from Nootropics Depot

While individual cistanche supplements offer impressive benefits, Nootropics Depot Cistamax takes things to the next level by combining a comprehensive cistanche complex with a few carefully selected synergistic ingredients. This advanced formula includes three different forms of cistanche alongside PrimaVie shilajit with two crucial hormone precursors in micronized pregnenolone and DHEA to create a complete testosterone and vitality support system.

This article focuses on the ingredients in Cistamax, but for the complete story behind cistanche's fascinating history and mechanisms, be sure to check out our Ultimate Guide to Cistanche Supplements, which explores everything from traditional uses to the latest research to cutting-edge extraction methods. Here, we'll key in on how Cistamax optimizes this ancient wisdom with modern nutritional science.

Ready to experience the power of this advanced cistanche stack? Check out current pricing and sign up for PricePlow's Nootropics Depot alerts below:

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Cistamax Ingredients

Each capsule of Cistamax provides a comprehensive blend of compounds that may support healthy testosterone levels, all designed to work synergistically for maximum effectiveness:

  • Cistamax Optimized Cistanche Complex - 500mg

    Nootropics Depot CistaMAX Ingredients

    The heart of this formula features a brilliantly-designed cistanche complex that captures the full spectrum of this remarkable herb's bioactive compounds. This 500mg blend includes:

    • 300mg Whole Cistanche Powder (Cistanche tubulosa stem) providing the complete plant matrix with natural ratios of phenylethanoid glycosides, polysaccharides, and supporting compounds
    • 100mg Supercritical CO2 Extract (Cistanche tubulosa stem) utilizing cutting-edge extraction technology to preserve volatile aromatic compounds typically lost in traditional processing
    • 100mg Water/Ethanol Extract (Cistanche tubulosa stem) delivering concentrated bioactive compounds through time-tested extraction methods

    This triple extract approach ensures you receive 85mg echinacoside and 33mg acetoside/verbascoside per serving, providing both the compounds and the mood-enhancing constituents that make cistanche unique and may help support natural testosterone production. The combination of full-spectrum powder, concentrated extracts, and preserved volatile compounds creates an entourage effect that captures both traditional benefits and modern optimization.

    But what is cistanche?

    Cistanche Tubulosa: The "Desert Ginseng" with Legendary Status

    Deep in the harsh deserts of China and Mongolia grows one of nature's most remarkable adaptogenic plants: Cistanche tubulosa, affectionately known as "desert ginseng", is a fascinating plant that completely lacks chlorophyll and survives by absorbing nutrients from other plants in some of Earth's most unforgiving environments.[1] This extraordinary survival strategy has allowed it to concentrate unique bioactive compounds that simply cannot be found elsewhere in nature.

    The Ultimate Guide to Cistanche Supplements: Gengkis Khan's Superior Tonic

    Cistanche tubulosa, the "desert ginseng" that saved Genghis Khan's army, naturally supports testosterone through enhanced enzyme production. Modern research validates 2,000+ years of use for hormonal health, cognitive function & vitality.

    For over two millennia, Cistanche has held legendary status in Traditional Chinese Medicine, where it was classified as a "first-class" tonic and revered as one of the "Nine Main Chinese Herbs". Ancient texts document its use for supporting vitality, enhancing reproductive health, strengthening immunity, and sharpening mental clarity. Perhaps most famously, Cistanche reportedly sustained Genghis Khan's army during their brutal desert crossings, earning it a place in military history as well as herbal medicine.

    Modern Science Validates Ancient Wisdom

    Modern research has finally begun to uncover the mechanisms behind the plant's incredible effects. The primary bioactive compounds responsible for Cistanche's benefits are echinacoside and acetoside (also called verbascoside) - two molecules that work through multiple complementary pathways to support both hormonal balance and cognitive function.[2]

    • Testosterone Support Through Multiple Mechanisms: Cistanche enhances natural testosterone production by upregulating the entire steroidogenic enzyme cascade, including CYP11A1, 3β-HSD, CYP17A1, and 17β-HSD - essentially optimizing every step of the body's testosterone synthesis machinery.[2] Additionally, it boosts luteinizing hormone (LH) levels, which signal the testes to increase testosterone production. In controlled animal research examining endocrine disruption, Cistanche demonstrated the ability to restore testosterone levels by up to 77% after BPA-induced suppression.
    • Unique Growth Hormone Activation: Also fascinating is Cistanche's ability to activate ghrelin receptors, triggering growth hormone secretion through a mechanism rarely seen in nature.[1] Echinacoside shows the strongest binding affinity to these "hunger receptors", yet interestingly doesn't always produce classical appetite effects, making it a unique "non-peptidyl ghrelin analog" with anti-aging potential.

    Powerful Nootropic Applications

    Beyond its renowned testosterone benefits, Cistanche demonstrates remarkable cognitive-enhancing properties that make it a legitimate nootropic compound:

    About Cistanche

    • Brain-Derived Neurotrophic Factor (BDNF) Restoration: Echinacoside demonstrates an incredible ability to restore BDNF levels back to normal through tyrosine kinase receptor stimulation.[3] BDNF is one of the brain's most critical growth factors, supporting neuronal survival, promoting new synapse formation, and enhancing the brain's capacity for learning and memory formation.
    • Nerve Growth Factor (NGF) Enhancement: Cistanche also enhances nerve growth factor production, leading to measurable improvements in neuronal function and structure.[4] Studies show it increases neuronal cell differentiation, promotes neurite length extension, and enhances synapse formation in the hippocampus, correlating with nearly 2-fold improvements in retention time during cognitive tests in animals.
    • Clinical Cognitive Benefits: A recent 90-day randomized, double-blind, placebo-controlled trial demonstrated significant cognitive improvements in middle-aged and elderly participants.[5] Participants showed improvements in Mini-Mental State Examination scores, Montreal Cognitive Assessment scores, and World Health Organization Quality of Life scores, demonstrating Cistanche's real-world cognitive benefits. Note that this study included another ingredient not in this supplement (ginkgo biloba), but it's promising nonetheless!

    All the better is the triple extract that Nootropics Depot used here, each one providing different bioactives from cistanche. Each can be bought separately, but Cistamax has them all.

    For those interested in diving deeper into Cistanche's fascinating history, mechanisms, and applications, be sure to check out our massive Ultimate Guide to Cistanche Supplements, which explores everything from Genghis Khan's legendary use to today's advanced standardization methods

  • PrimaVie Purified Shilajit - 150mg

    PrimaVie is considered the gold standard in shilajit supplementation, delivering a purified and standardized extract of this ancient Ayurvedic powerhouse. This patented form contains concentrated fulvic acid complexes, dibenzo-α-pyrones (DBPs), and over 40 essential trace minerals that work synergistically with cistanche's testosterone-enhancing mechanisms.

    Nootropics Depot CistaMAX

    The Science Behind Shilajit's Performance Benefits

    Shilajit's remarkable effects stem from its unique ability to enhance mitochondrial function at the cellular level. Research demonstrates that PrimaVie shilajit significantly improves post-exercise ATP concentration and adenylate energy charge -- critical markers of cellular energy status.[6] In controlled studies, subjects receiving PrimaVie showed nearly double the post-exercise ATP levels compared to placebo groups, translating to enhanced energy production and reduced fatigue during demanding physical activities.

    The mechanism centers on shilajit's potent electron transfer capacity and cellular support activity, which optimizes mitochondrial respiration and ATP resynthesis.[7] This enhanced mitochondrial efficiency helps explain why 500mg daily PrimaVie supplementation for 8 weeks improved resistance to fatigue in strength-trained individuals, with the greatest benefits observed in those with higher baseline strength levels.

    Testosterone and Hormonal Support

    Beyond its energy-enhancing properties, PrimaVie provides direct testosterone support through multiple pathways. A landmark 90-day randomized controlled trial in healthy men aged 45-55 found that 500mg daily PrimaVie supplementation produced impressive hormonal improvements: testosterone increased by 20.45%, free testosterone by 19.14%, and DHEA-S by 31.35%.[8] These effects were accompanied by maintained luteinizing hormone (LH) levels and elevated follicle-stimulating hormone (FSH), indicating proper hypothalamic-pituitary-testicular axis function.

    The testosterone-boosting effects likely result from shilajit's role as a precursor supporter -- providing the raw materials and cofactors needed for optimal steroid hormone synthesis. This makes it an ideal complement to cistanche's steroidogenic enzyme enhancement, creating a comprehensive approach to natural testosterone-balancing support.

    At 150mg per serving, Cistamax provides a relevant dose of this premium shilajit extract. While the landmark testosterone studies used 500mg daily, the 150mg dose in Cistamax works synergistically with the comprehensive cistanche complex and hormone precursors below (pregnenolone and DHEA) that may help support multiple aspects of male vitality. This strategic dosing ensures optimal bioavailability and absorption while avoiding potential overstimulation of hormone pathways.

  • Micronized Pregnenolone - 2.5mg

    Cistanche Cognitive Test Scores Improve in Human Trial

    The proof is in the testing! Cistanche supplementation significantly improved scores on multiple cognitive assessments including MMSE and MoCA tests. These aren't just lab results - they represent real improvements in thinking and memory.[5]

    Pregnenolone serves as the "mother hormone" - the foundational building block from which all steroid hormones are synthesized.[9] This micronized form ensures optimal absorption and bioavailability. By providing this crucial precursor, Cistamax supports your body's natural hormone production cascade while working synergistically with cistanche's steroidogenic enzyme enhancement.

    The Foundation of Hormone Production

    Pregnenolone stands as the first steroid hormone synthesized from cholesterol at all sites of steroidogenesis, including the brain, adrenal glands, and gonads.[9] Often called the "mother of all hormones," pregnenolone serves as the essential precursor for virtually all downstream steroid hormones, including progesterone, DHEA, testosterone, estradiol, and cortisol.[10]

    The biosynthesis pathway begins when cholesterol enters the mitochondria of steroidogenic cells, where the enzyme CYP11A1 converts it to pregnenolone - the rate-limiting step for all subsequent steroid hormone production.[9] This makes pregnenolone availability crucial for maintaining optimal hormone balance throughout the body.

    Beyond Hormone Precursor Functions

    While pregnenolone's role as a hormone precursor is well-established, research reveals it also exerts direct physiological effects independent of its conversion to other hormones.[11] These direct actions include neuroprotective effects, cognitive enhancement, and modulation of neurotransmitter systems.

    • Neuroprotective Benefits: Pregnenolone has solid neuroprotective properties, including protection against amyloid-beta neurotoxicity in hippocampal cells.[10] It also supports nerve growth and myelination processes (the insulation of nerve fibers for faster signal transmission), with research showing pregnenolone production by is critical for proper myelination in both central and peripheral nervous systems.[11]
    • Cognitive Enhancement: Animal studies demonstrate pregnenolone's ability to enhance memory and cognitive function through multiple mechanisms, including modulation of GABA and NMDA receptors.[11] Research shows pregnenolone sulfate increases acetylcholine release and spatial recognition in the hippocampus, with effects lasting several hours after administration.[12]
    Cistanche Boosts Brain Antioxidant Enzymes

    The herb supercharges your brain's natural defense systems! Echinacoside treatment increased protective enzymes in both the cortex and hippocampus while reducing inflammatory markers - a one-two punch for brain health.[3]

    Synergistic Hormone Support Strategy

    Cistamax provides 2.5mg of micronized pregnenolone, a carefully chosen dose that may help support hormone production without overwhelming natural regulatory systems.[11] This moderate dosing approach recognizes that pregnenolone supplementation works best within specific therapeutic windows, where it can enhance natural steroidogenesis without disrupting hormonal balance.

    Given that oral pregnenolone typically has limited bioavailability and rapid metabolism, the micronized version is useful to create smaller particle sizes in an effort to improve absorption and utilization.[11]

    When combined with cistanche's steroidogenic enzyme upregulation and DHEA's direct hormone support, this pregnenolone dose creates a comprehensive approach to hormone optimization that supports the body's natural testosterone production machinery rather than bypassing it.

  • DHEA (Dehydroepiandrosterone) - 2.5mg

    DHEA acts as another critical hormone precursor that can be converted to testosterone and other vital hormones as needed by the body. As with pregnenolone, the careful 2.5mg dose provides gentle support without overwhelming natural hormone balance. DHEA levels naturally decline with age, making this inclusion valuable for maintaining youthful hormone profiles alongside cistanche's enzymatic support.

    Another "Mother of All Hormones"

    Dehydroepiandrosterone (DHEA) serves as one of the most abundant circulating steroid hormones in the human body and functions as a crucial precursor to both testosterone and estradiol.[13] Often called the "mother of all hormones," DHEA is produced primarily by the adrenal glands and peaks around age 20-25 before beginning a steady decline that continues throughout life.[14]

    By age 75, DHEA levels drop approximately 80% compared to their peak, correlating with declines in energy, muscle mass, bone density, and overall vitality. This age-related decline has made DHEA supplementation an important strategy for supporting healthy hormone balance in aging adults.

    Nootropics Depot CistaMAX Benefits

    Direct and Indirect Hormonal Benefits

    Also similar to pregnenolone: While DHEA functions as a testosterone precursor, recent research reveals it also exerts direct physiological effects independent of its conversion to other hormones.[13] Meta-analysis research demonstrates that DHEA supplementation can significantly increase testosterone levels in both men and women, with effects being more pronounced in individuals over 60 years of age.[14]

    Beyond testosterone conversion, DHEA binds to specific membrane receptors and activates multiple biochemical pathways like signaling cascades that influence cellular metabolism and function.[14]

    Comprehensive Physiological Support

    DHEA supplementation is associated with numerous benefits, including improved endothelial function, enhanced cellular immunity, reduced inflammatory processes, increased bone density, improved physical strength, and better overall body composition.[13]

    Neuroprotective and Cognitive Benefits: Finally, DHEA use also has significant neuroprotective properties, including stimulation of nerve growth factor production and protection against neuronal damage from metabolic deprivation.[13] Recent studies show DHEA can stimulate human neural stem cells, suggesting roles in neurogenesis and neuronal survival that may contribute to cognitive health and mood regulation.

    Optimal Dosing Strategy

    When combined with cistanche's steroidogenic enzyme enhancement and pregnenolone's foundational hormone support, this 2.5mg DHEA dose creates a synergistic approach to hormone optimization that supports the body's natural testosterone production cascade without going overboard..

How to Use Cistamax

Dosage: Take one capsule daily, preferably in the morning to align with natural testosterone rhythms. Cistamax can be taken with or without food, though some users prefer taking it with breakfast for enhanced absorption of the fat-soluble compounds.

Duration: Cistamax is designed for long-term daily use. The natural mechanisms involved - enzyme upregulation and hormone precursor support - work best with consistent supplementation rather than cycling protocols.

As discussed in our main Cistanche guide, going on 8-12 weeks of daily use and then taking a month off to assess off-cycle status is a wise idea.

Tongkat Ali (Eurycoma Longifolia): The Ultimate Guide to Get Your Longjack Back

Tongkat Ali research shows impressive results for testosterone support, sexual health, stress reduction, and athletic performance. This comprehensive guide covers the science, proper dosing, and how to choose quality standardized extracts like Nootropics Depot's lab-tested options.

  • Stacking with Tongkat Ali

    For users seeking maximum testosterone support, Cistamax pairs exceptionally well with tongkat ali. These herbs work through complementary mechanisms - cistanche optimizes the testosterone synthesis machinery while tongkat ali enhances luteinizing hormone sensitivity and provides additional aromatase inhibition.

    Nootropics Depot offers both 2% and 10% eurycomanone standardized tongkat ali extracts that stack perfectly with Cistamax. The combination creates a well-rounded approach to natural testosterone optimization that addresses multiple pathways simultaneously. For detailed information on tongkat ali's mechanisms and benefits, check out our complete guide: Tongkat Ali (Eurycoma Longifolia): The Ultimate Guide to Get Your Longjack Back.

    Recommended Stacking Protocol:

    • Take Cistamax once daily in the morning
    • Add tongkat ali (200mg of 2% extract or 100mg of 10% extract) either daily for maximum effects or as needed for additional confidence and energy support
  • Body Composition Stack with Ecklonia Cava

    For those interested in comprehensive body composition support, Cistamax creates an innovative stack when combined with Ecklonia cava. While Cistamax optimizes testosterone and hormone balance, Ecklonia cava provides unique metabolic benefits including glucose regulation, fat browning, and appetite optimization.

    This combination addresses body composition from multiple angles - hormonal optimization through Cistamax and metabolic enhancement through Ecklonia cava's dieckol content. The result is a comprehensive approach to vitality that supports both muscle building and fat metabolism.

    Nootropics Depot Ecklonia Cava: The 6-Year Quest for a Superior Seaweed Source

    Nootropics Depot spent 6 YEARS developing their Ecklonia Cava supplement, discovering most market products aren't genuine! Their authentic marine extract offers metabolic, cognitive and sleep benefits backed by real science. The only verified Ecklonia Cava you can trust.

    Research shows Ecklonia cava can promote the conversion of white adipose tissue to metabolically active brown-like fat while supporting healthy glucose metabolism. Combined with Cistamax's testosterone and energy support, this creates a powerful synergy for overall body composition goals.

    For complete details on Ecklonia cava's remarkable benefits, explore our in-depth coverage: Ecklonia Cava: The Super Seaweed with Metabolism and Brain-Boosting Benefits and Nootropics Depot Ecklonia Cava: The 6-Year Quest for a Superior Seaweed Source.

    Body Composition Stack Protocol:

    • Take Cistamax once daily in the morning
    • Add Ecklonia cava (250-500mg) to support metabolic optimization and healthy body composition
    • Consider timing Ecklonia cava with meals for enhanced glucose regulation benefits

Quality Assurance: Trust Through Transparency

Nootropics Depot's commitment to quality extends far beyond impressive formulations. Every batch of Cistamax undergoes rigorous third-party testing through ISO-accredited laboratories to verify potency, purity, and safety. Their ultra-intense testing protocol includes identity verification for each botanical ingredient, quantitative analysis of key bioactive compounds like echinacoside and verbascoside, heavy metals screening, microbial testing, and pesticide residue analysis.

Unlike many supplement companies that rely solely on supplier certificates, Nootropics Depot conducts independent verification testing on every incoming raw material and finished product batch. Their "Trust Through Transparency" philosophy means complete Certificates of Analysis (COAs) are readily available on their website for every Cistamax lot number, allowing customers to verify the exact potency and purity of their specific bottle.

This level of transparency, combined with cGMP-certified manufacturing in FDA-registered facilities, ensures that Cistamax consistently delivers the therapeutic benefits this remarkable formulation promises.

Other Nootropics Depot Cistanche Options

Traditional Uses of Cistanche

In case you don't want the shilajit and hormone precursors and just want to try cistanche on its own, Nootropics Depot offers three standalone cistanche products to meet different needs and budgets:

  • Full Spectrum Cistanche Capsules (5% Echinacoside, 1% Acetoside) - The most economical option that preserves the complete plant matrix with natural ratios of all bioactive compounds, available in convenient 700mg capsules.
  • Cistanche Ultra Potent Extract Tablets and Powder (50% Echinacoside, 10% Verbascoside) - The gold standard for traditional cistanche extracts, delivering maximum echinacoside content in precise 200mg tablets or powder for consistent testosterone and cognitive support.
  • Supercritical CO2 Cistanche Extract (20% Echinacoside, 20% Verbascoside) - The premium "grand cru" option that preserves volatile compounds through cutting-edge extraction technology, creating more pronounced mood and libido effects at 200mg per capsule.

Premium Value: More Bioactives, More Ingredients, Less Cost

When researching testosterone support supplements, comparing individual ingredient costs shows why Cistamax provides incredible value for advanced users. It's not just about the combination of ingredients, but the amount of cistanche bioactives you get compared to competing "pure" cistanche supplements.

Superior Bioactive Content Per Dollar

The formula provides 86.3mg of echinacoside per serving at just 1.16 cents per milligram of active compound (as of 2025 pricing). This positions Cistamax as the second-highest echinacoside source in the market -- second only to the other Nootropics Depot offerings -- while still offering additional benefits in the added ingredients!

Nootropics Depot Cistanche Verbascoside Content

Nootropics Depot's Supercritical CO2 Extract delivers 53.1mg at just 1.4 cents per milligram, providing 13x more verbascoside than competitors while costing 6x less per mg of active compound.

For verbascoside content, Cistamax delivers 39.9mg per serving at 2.5 cents per milligram (mid-2025 pricing), providing 2.4x more verbascoside than most traditional cistanche products. Cistamax users receive nearly 10x more active compounds for less than one-third the cost per milligram compared to the competition!

Nootropics Depot Cistanche Echinacoside Content

Value analysis reveals Nootropics Depot's Ultra Potent Extract leads with 110.5mg echinacoside at just 45 cents per milligram - that's 2.2x more active compound than competitors while maintaining the lowest cost per mg.

Then there's the value you get from the other ingredients:

Stack Replacement Value

Cistamax's true value looks even better when considering the individual components:

  • Premium cistanche extract: $35-50 monthly
  • PrimaVie shilajit: $25-35 monthly
  • Micronized pregnenolone: $15-25 monthly
  • DHEA: $10-15 monthly

This creates a total monthly cost of $85-125 for equivalent ingredients from separate products, while Cistamax provides the complete stack in a single, convenient formula at a significantly lower cost point.

The only way to get more echinacoside and verbascoside per dollar is to go with the other Nootropics Depot products listed above. But as we've covered in this article, Cistamax offers much more.

Conclusion: Cistamax is the Evolution of Cistanche Supplementation

Cistamax is a great example of how traditional botanical wisdom can be enhanced through modern nutritional science. By combining three different forms of cistanche with well-selected hormone precursors and adaptogenic compounds, this formula addresses testosterone support from multiple complementary angles.

Ecklonia Cava: The Super Seaweed with Metabolism and Brain-Boosting Benefits

Brown seaweed Ecklonia cava outperforms land-based plants with its powerful phlorotannins! Research shows benefits for metabolism, cognition, liver health, and even hair growth.

The inclusion of whole plant powder preserves traditional benefits, while concentrated extracts and supercritical CO2 processing ensure maximum bioactive delivery. The addition of PrimaVie shilajit, pregnenolone, and DHEA creates a complete hormone support system that works synergistically with cistanche's natural mechanisms.

Whether you're seeking to optimize testosterone levels, enhance physical performance, or support overall vitality, Cistamax provides a comprehensive approach that honors cistanche's ancient legacy while leveraging modern extraction and formulation techniques.

For the complete story behind cistanche's remarkable journey from endangered desert plant to cutting-edge supplement, don't miss our Ultimate Guide to Cistanche Supplements. This comprehensive resource explores everything from Genghis Khan's legendary use to today's advanced standardization methods.

Ready to experience the next evolution in cistanche supplementation? Check current pricing and availability below and sign up for our Nootropics Depot news alerts:

Nootropics Depot CistaMAX - Optimized Cistanche – Deals and Price Drop Alerts

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Disclosure: PricePlow relies on pricing from stores with which we have a business relationship. We work hard to keep pricing current, but you may find a better offer.

Posts are sponsored in part by the retailers and/or brands listed on this page.

About the Author: PricePlow Staff

PricePlow Staff

PricePlow is a team of supplement industry veterans that include medical students, competitive strength athletes, and scientific researchers who all became involved with dieting and supplements out of personal need.

The team's collective experiences and research target athletic performance and body composition goals, relying on low-toxicity meat-based diets.

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References

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  2. Jiang, Zhihui, et al. "Echinacoside and Cistanche Tubulosa (Schenk) R. Wight Ameliorate Bisphenol A-Induced Testicular and Sperm Damage in Rats through Gonad Axis Regulated Steroidogenic Enzymes." Journal of Ethnopharmacology, vol. 193, Dec. 2016, pp. 321–328, doi:10.1016/j.jep.2016.07.033. https://pubmed.ncbi.nlm.nih.gov/27422164/
  3. Shiao, Young-Ji, et al. "Echinacoside Ameliorates the Memory Impairment and Cholinergic Deficit Induced by Amyloid Beta Peptides via the Inhibition of Amyloid Deposition and Toxicology." Food & Function, vol. 8, no. 6, 2017, pp. 2283–2294, doi:10.1039/c7fo00267j. https://pubmed.ncbi.nlm.nih.gov/28581010/
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  8. Pandit, S., et al. "Clinical Evaluation of Purified Shilajit on Testosterone Levels in Healthy Volunteers." Andrologia, vol. 48, no. 5, 22 Sept. 2015, pp. 570–575, doi:10.1111/and.12482. https://pubmed.ncbi.nlm.nih.gov/26395129/
  9. Raux, Pierre‐Louis, et al. "New Perspectives on the Role of the Neurosteroid Pregnenolone as an Endogenous Regulator of Type‐1 Cannabinoid Receptor (CB1R) Activity and Function." Journal of Neuroendocrinology, vol. 34, no. 2, 6 Sept. 2021, doi:10.1111/jne.13034. https://pubmed.ncbi.nlm.nih.gov/34486765/
  10. Borowicz, Kinga K., et al. "Neuroprotective Actions of Neurosteroids." Frontiers in Endocrinology, vol. 2, 2011, doi:10.3389/fendo.2011.00050. https://pmc.ncbi.nlm.nih.gov/articles/PMC3355955/
  11. Vallée, Monique. "Neurosteroids and Potential Therapeutics: Focus on Pregnenolone." The Journal of Steroid Biochemistry and Molecular Biology, vol. 160, June 2016, pp. 78–87, doi:10.1016/j.jsbmb.2015.09.030. https://pubmed.ncbi.nlm.nih.gov/26433186/
  12. Darnaudéry, Muriel, et al. "Pregnenolone Sulfate Increases Hippocampal Acetylcholine Release and Spatial Recognition." Brain Research, vol. 852, no. 1, Jan. 2000, pp. 173–179, doi:10.1016/s0006-8993(99)01964-2. https://pubmed.ncbi.nlm.nih.gov/10661509/
  13. Traish, Abdulmaged M., et al. "Dehydroepiandrosterone (DHEA)--a Precursor Steroid or an Active Hormone in Human Physiology." The Journal of Sexual Medicine, vol. 8, no. 11, 1 Nov. 2011, pp. 2960–2982; quiz 2983, doi:10.1111/j.1743-6109.2011.02523.x. https://pubmed.ncbi.nlm.nih.gov/22032408/
  14. Li, Yuanyuan, et al. "A Dose-Response and Meta-Analysis of Dehydroepiandrosterone (DHEA) Supplementation on Testosterone Levels: Perinatal Prediction of Randomized Clinical Trials." Experimental Gerontology, vol. 141, Nov. 2020, p. 111110, doi:10.1016/j.exger.2020.111110. https://pubmed.ncbi.nlm.nih.gov/33045358/

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