GR8 Lifestyle REJUVEN8: Premium Collagen + Cellular Health Complex

Looking for a collagen supplement that does much more than just support your skin?

Looking beyond basic collagen supplements? GR8 Lifestyle Rejuven8 combines 10g premium collagen with creatine, CoQ10, and more for comprehensive cellular health support. Your skin, joints, and energy levels will thank you!

Rejuven8 is one of the first five innovative formulas from GR8 Lifestyle Supplements that goes far beyond traditional collagen products… it’s a comprehensive cellular health complex designed to support your body from the inside out.

Rejuven8: The Next Evolution in Collagen Supplementation

Traditional collagen products typically focus on skin health alone, but Rejuven8 takes a multi-dimensional approach to wellness and longevity. By combining premium collagen sources with powerful cellular health ingredients, Rejuven8 supports everything from skin elasticity and joint mobility to energy production and cognitive function. Imagine a collagen supplement that also has creatine!

GR8 Lifestyle launched in May 2025 with a lineup of cutting-edge supplements, each featuring exactly 8 science-backed ingredients at clinical doses. Rejuven8 exemplifies this “Nutrition to the Power of 8” philosophy with a formula designed to help you look and feel your best as you age.

For those interested in tracking GR8’s evolution, sign up for PricePlow’s GR8 alerts to receive notifications about new products, flavor releases, and deals, and let’s get into it:

What Is Rejuven8?

Rejuven8 is GR8 Lifestyle’s premium collagen and cellular health supplement, formulated to support tissue elasticity, joint flexibility, and cellular vitality. It stands as a new approach to healthy aging, one that addresses both the visible signs of aging and the underlying cellular processes that drive them.

Inside, you’ll find a powerful combination of marine and bovine collagen (totaling 10g per serving) enhanced with ingredients that support collagen synthesis, combat oxidative stress, and promote cellular energy production. This includes creatine monohydrate, maca root, pine bark extract, CoQ10, curcumin, and vitamin C from acerola cherry.

Let’s take a look at the nutrition facts before diving into the ingredients:

Nutrition Facts

Each serving (17.3g scoop) of Rejuven8 provides:

• Calories: 45

• Total Carbohydrate: 1g (<1% DV)

• Protein: 10g

• Vitamin C: 135mg (150% DV)

• Sodium: 80mg (3% DV)

GR8 Lifestyle Rejuven8 Ingredients

Each serving provides the following:

• Hydrolyzed Collagen Peptides (Bovine) – 8000mg

  Hydrolyzed collagen peptides from bovine sources form the backbone of Rejuven8’s formula, delivering a substantial 8g dose per serving (but don’t worry, we’ll hit 10 total grams thanks to 2 grams of specialized marine collagen coming later). These peptides are derived from bovine hide and undergo enzymatic hydrolysis to break down the collagen into smaller, more bioavailable peptide fragments that your body can easily absorb and utilize.

  Bovine collagen is primarily type I and type III collagen — the most abundant forms in the human body that provide structural support to skin, bones, tendons, and connective tissues. When ingested, these peptides can stimulate fibroblasts (the cells responsible for collagen production) to synthesize new collagen and other extracellular matrix proteins.^[1]

  Clinical research shows that regular consumption of collagen peptides can improve skin elasticity, hydration, and dermal collagen density. A double-blind, placebo-controlled study showed that after just 8 weeks of supplementation, skin elasticity increased significantly compared to placebo.^[1] These benefits continue to improve with consistent use.

  Beyond skin health, bovine collagen peptides have been clinically shown to support joint health and mobility. A randomized, placebo-controlled study found that collagen supplementation reduced joint pain in active individuals and athletes.^[2] The researchers observed significant improvements in joint pain while walking, standing, and carrying objects… activities that commonly cause discomfort in individuals with joint issues.

  Studies also suggest potential benefits for bone density, muscle recovery, and gut health. The rich glycine and proline content supports the body’s natural collagen synthesis while providing amino acids that may be underrepresented in modern diets.

  At 8g per serving, Rejuven8 provides a clinically effective dose of bovine collagen peptides, and that’s not even counting the additional 2g of specialized marine collagen (with CollaMeta®) that we’ll cover shortly after discussing creatine. This combined approach ensures comprehensive collagen support for your body’s structural and regenerative needs.



• Creatine Monohydrate – 3000mg

  Creatine monohydrate is a game-changing addition that elevates Rejuven8 beyond typical collagen supplements. At a clinical dose of 3000mg, this powerhouse ingredient brings impressive cellular energy and anti-aging benefits to the formula.

  Creatine isn’t just for athletes and bodybuilders. Your body naturally produces this compound from amino acids, but supplementation can significantly increase muscle phosphocreatine stores by 20-40%, enhancing cellular energy production.^[3]

  Why Creatine in a Collagen Product?

  This brilliant pairing makes perfect sense when you consider creatine’s whole-body benefits:

  • Cellular Energy Production – Creatine helps regenerate ATP (your cells’ primary energy currency), supporting overall cellular function and vitality.^[4]
  • Skin Health Support – Research suggests creatine can help maintain skin cell energy metabolism and protect against oxidative damage, complementing collagen’s structural benefits for skin.^[5,6]
  • Cognitive Function – Studies show creatine supplementation increases brain creatine content by 5-15%, potentially enhancing mental energy, focus, and cognitive performance – especially during stress or sleep deprivation.^[7]
  • Joint and Muscle Support – Beyond providing raw materials through collagen, Rejuven8 delivers creatine to enhance the energy production needed for tissue maintenance and repair.^[8]

  For women specifically, creatine offers unique benefits throughout various life stages, supporting hormone-driven changes in creatine metabolism.^[9]

  

  Fluctuations in creatine kinase activity track closely with female hormones, revealing why creatine supplementation may offer unique benefits for women at different lifecycle stages.^[9]

  The 3000mg dose is perfect — sufficient to provide meaningful benefits while avoiding the need for a separate loading phase that higher doses would require. This thoughtful dosing strategy makes Rejuven8 an efficient all-in-one solution for cellular energy, tissue support, and anti-aging.

  And unlike many ingredients that lack long-term safety data, creatine monohydrate’s been extensively studied for decades, with research confirming its safety profile across diverse populations.^[10]

  By including this research-backed ingredient at a clinical dose, GR8 Lifestyle shows their style, being unafraid to make a science-based formulation that goes far beyond superficial benefits, and goes slightly against the norm, too — and in a great way!

• Hydrolyzed Marine Collagen (with CollaMeta®) – 2000mg

  While bovine collagen provides excellent baseline support, GR8 Lifestyle takes collagen supplementation to the next level by including 2g of premium marine collagen featuring CollaMeta – an advanced marine collagen tripeptide from Glanbia Nutritionals.

  

  Six-month study results show significant improvements in LDL/HDL ratios, particularly in high-risk individuals with ratios above 2.5, demonstrating cardiovascular benefits beyond skin health.^[11]

  What makes CollaMeta special? It’s a highly potent collagen tripeptide with a small molecular weight, making it significantly more bioavailable than traditional collagen peptides. This means you need less for the same effect – a true example of quality over quantity.

  Meet Bioactive Tripeptides

  CollaMeta contains a higher percentage of bioactive tripeptides (especially those with Gly-X-Y sequences) that support the synthesis of various types of collagen throughout your body. The most frequent of these tripeptide units is Glycine-Proline-Hydroxyproline (Gly-Pro-Hyp), which contributes maximum stability to collagen’s triple-helix structure while exhibiting potent bioactivity.^[12]

  

  Clinical data reveals meaningful reductions in toxic advanced glycation end-products (TAGE) after 6 months, especially in subjects with elevated baseline levels, supporting collagen’s whole-body benefits.^[11]

  These collagen tripeptides don’t just pass through your system — clinical research shows they’re efficiently absorbed into the bloodstream. After oral ingestion, tripeptides like Gly-Pro-Hyp are detected in human plasma, with concentrations peaking around 30-60 minutes post-consumption.^[13]

  The benefits of CollaMeta extend to multiple areas:

  • Superior skin hydration and elasticity – A 12-week clinical study demonstrated significant improvements in skin hydration and elasticity compared to placebo.^[14]
  • Cardiovascular health support – A 6-month study found collagen tripeptide supplementation significantly reduced the LDL-C/HDL-C ratio in individuals with higher initial ratios and lowered toxic advanced glycation end-products (TAGE) in all subjects.^[11]
  • Potential joint and bone benefits – Research suggests collagen tripeptides may provide beneficial effects on bone healing processes and joint health.^[15]

  By combining both marine and bovine collagen sources, Rejuven8 provides a comprehensive spectrum of collagen types to support overall connective tissue health throughout your body.

• Maca (Lepidium meyenii Walp) (Root) Powder – 1000mg

  

  Native to the high-altitude regions of the Peruvian Andes, maca root has been cultivated for over 2,000 years as both a food source and traditional medicine.^[16] This adaptogenic powerhouse brings multiple benefits to Rejuven8’s formula beyond what you’d typically expect in a collagen supplement.

  Maca contains unique bioactive compounds including macamides, macaenes, glucosinolates, and flavonoids that contribute to its impressive array of benefits.^[17] Research shows maca can help:

  • Boost Energy & Combat Fatigue

    Maca supplementation has demonstrated significant anti-fatigue effects, helping to extend exercise duration while reducing muscle damage from oxidative stress.^[18] In one study, athletes who consumed 1500mg of maca daily for 60 days showed an average 10.3% improvement in physical performance.^[16]

  • Support Antioxidant Defense

    Maca’s potent antioxidant properties come from its polyphenols and unique alkaloids, which help neutralize free radicals and reduce oxidative damage.^[19] These effects complement Rejuven8’s anti-aging focus by supporting cellular health from multiple angles.

  • Enhance Mood & Cognitive Function

    Research suggests maca provides neuroprotective benefits through its antioxidant and anti-inflammatory actions.^[16] Maca appears to modulate neurotransmitter activity and may help improve memory and cognitive performance.

  • Improve Exercise Recovery

    A randomized, placebo-controlled study found that cyclists supplementing with maca extract showed significantly improved 40km time trial performance after just 14 days.^[20] This makes maca a smart addition to a formula designed to support active lifestyles.

  

  At 1000mg per serving, Rejuven8 delivers a research-backed dose of maca that works synergistically with other ingredients to support cellular health, energy production, and overall wellness—truly elevating this formula beyond typical collagen supplements.

• Turmeric (Curcuma longa) (Rhizome) Extract (as Curcumin C3 Complex®) – 300mg

  Curcumin C3 Complex is a premium, patented extract derived from the rhizomes of turmeric (Curcuma longa), standardized to contain a minimum of 95% curcuminoids.^[21] This potent blend features three bioactive compounds in specific ratios: curcumin (70-80%), demethoxycurcumin (15-25%), and bisdemethoxycurcumin (2.5-6.5%).^[22]

  Comprehensive Skin Benefits

  Curcumin isn’t surprising to see in Rejuven8 — it has an impressive range of positive effects, including skin health benefits. Curcumin works through multiple pathways to support skin rejuvenation and protection:

  • Enhanced Collagen Synthesis – Curcumin doesn’t just support existing collagen, it actually helps stimulate new collagen production. Research shows curcumin supports fibroblasts (the cells responsible for collagen synthesis) and can increase both collagen and hyaluronan production, directly complementing Rejuven8’s collagen peptides.^[23]
  • Skin Barrier Support – Clinical studies demonstrate that curcumin helps maintain and strengthen the skin barrier function, which tends to weaken with age. This effect helps skin retain moisture and resist environmental stressors.^[24]
  • Photo-Aging Protection – Studies show curcumin helps protect skin cells from UV damage by inhibiting the production of skin-damaging inflammatory cytokines, reducing the creation of reactive oxygen species, and promoting skin cell survival after UV exposure.^[25]
  • Skin Hydration Enhancement – A randomized, double-blind, placebo-controlled trial demonstrated that oral curcumin supplementation significantly increased skin hydration by stimulating hyaluronan production from non-stimulated keratinocytes, providing a natural moisturizing effect.^[25]

  

  Anti-Inflammatory Support

  Beyond skin benefits, Curcumin C3 Complex itself delivers powerful anti-inflammatory properties that support whole-body wellness. It works by inhibiting NF-κB activation, which reduces the production of inflammatory cytokines and enzymes like cyclooxygenase-2 (COX-2).^[23] This mechanism is especially beneficial for supporting skin healing, joint comfort, and recovery after exercise.

  Research confirms that curcumin can effectively modulate inflammatory responses in multiple skin conditions, making it a versatile ingredient for comprehensive skin health support.^[24]

  Potent Antioxidant Protection

  Oxidative stress accelerates skin aging and cellular damage throughout the body. Curcumin C3 Complex delivers impressive antioxidant benefits through a dual-action approach:

  • It directly neutralizes harmful free radicals that damage skin cells and collagen fibers
  • It boosts your body’s own antioxidant defense systems by activating Nrf2, the master regulator of cellular antioxidant responses^[23]

  This comprehensive antioxidant support helps protect skin cells from oxidative damage while supporting overall cellular health and longevity.

  Wound Healing Support

  For active individuals, curcumin provides valuable support for skin recovery and healing. Studies show curcumin enhances wound healing by:^[23]

  • Promoting faster re-epithelialization
  • Increasing collagen deposition at wound sites
  • Supporting healthy tissue granulation
  • Reducing oxidative damage during the healing process[

  These benefits make curcumin an excellent complement to Rejuven8’s regenerative formula, supporting not just daily skin maintenance but also active recovery.

  Cardiovascular and Cognitive Support

  Clinical research also shows that the curcuminoids in C3 Complex can significantly reduce LDL cholesterol, total cholesterol, and triglycerides while increasing beneficial HDL cholesterol.[https://pubmed.ncbi.nlm.nih.gov/25440375/]

  

  Additionally, recent studies suggest curcumin may support brain health and cognitive function, particularly working memory.^[27] This aligns with GR8’s comprehensive approach to wellness that addresses both physical and mental aspects of healthy aging.

  The 300mg dose in Rejuven8 provides meaningful benefits while maintaining excellent tolerability and safety. By including this clinically-researched ingredient, GR8 Lifestyle ensures that Rejuven8 delivers comprehensive support for skin health, cellular function, and overall vitality that truly transcends basic collagen supplements.

• Coenzyme Q10 – 100mg

  Coenzyme Q10 (CoQ10) is a powerful, vitamin-like compound that your body naturally produces, but levels decline with age and physical stress. At 100mg per serving, Rejuven8 delivers a clinical dose of this essential nutrient that works at the cellular level to support multiple aspects of health and performance.

  CoQ10 plays a critical role in your mitochondria, where it helps convert food into ATP energy through the electron transport chain.^[28] This makes it especially valuable for high-energy demanding tissues like your heart, kidneys, liver, and muscles.

  Beyond its bioenergetic function, CoQ10 acts as one of your body’s primary fat-soluble antioxidants, protecting cell membranes from oxidative damage. It’s the only lipid-soluble antioxidant that your body synthesizes endogenously and has enzymatic mechanisms to regenerate its reduced form, making it uniquely valuable for cellular protection.^[29]

  Research shows that CoQ10 supplementation can significantly reduce oxidative stress markers and increase total antioxidant capacity.^[30] For athletes or active individuals, CoQ10 may help reduce exercise-induced muscle damage and improve recovery.^[31]

  As an added benefit, CoQ10 helps maintain healthy cardiovascular function by supporting proper blood pressure levels and endothelial health.^[32]

  Through these multiple mechanisms, the CoQ10 in Rejuven8 works synergistically with other ingredients to support cellular rejuvenation, energy production, and overall vitality.

• Vitamin C (as Acerola Cherry Extract) – 135mg

  

  Rejuven8 doesn’t use synthetic ascorbic acid – it delivers 135mg of vitamin C (150% DV) from acerola cherry extract, one of nature’s richest sources of this essential nutrient. A great-tasting source, too!

  Acerola contains 50-100 times more vitamin C than oranges or lemons, with concentrations ranging from 1,500-4,500mg per 100g of fruit.^[33] Studies suggest that vitamin C from natural food matrices like acerola may be better absorbed by the body than synthetic forms.^[34]

  But why include vitamin C in a collagen formula? The answer is simple – it’s essential for collagen synthesis. Vitamin C serves as a cofactor for the enzymes prolyl and lysyl hydroxylase, which stabilize the collagen molecule’s structure.^[35] Without adequate vitamin C, collagen production becomes compromised, leading to potential skin fragility and impaired wound healing.

  Beyond its collagen-supporting role, vitamin C functions as a powerful antioxidant that protects against oxidative stress, which can degrade existing collagen.^[36] It neutralizes free radicals and regenerates other antioxidants like vitamin E, creating a synergistic effect with the pine bark extract and CoQ10 also found in Rejuven8.

  The benefits extend further – vitamin C enhances immune function, supports cardiovascular health, and may even improve your body’s response to exercise.^[37]

  For optimal collagen support, vitamin C works synergistically with the marine and bovine collagen peptides in Rejuven8, making it an essential component of this comprehensive cellular health formula.

• Pine (Pinus pinaster) (Bark) Extract (95% Proanthocyanidins) – 50mg

  Pine bark extract from the French maritime pine (Pinus pinaster) adds powerful vascular and skin support benefits to Rejuven8’s formula. This concentrated source of proanthocyanidins (specialized polyphenols with strong antioxidant capabilities) works synergistically with collagen to enhance skin elasticity and cellular wellness.

  

  Powerful Antioxidant Protection

  Pine bark extract contains a unique blend of procyanidins, bioflavonoids, and phenolic acids that neutralize free radicals more effectively than many other antioxidants. Research shows it can extend the lifetime of vitamin C and regenerate vitamin E, creating a comprehensive antioxidant network that protects collagen fibers from degradation.^[38]

  Enhanced Skin Elasticity & Appearance

  Helpful in Rejuven8 is pine bark’s ability to strengthen existing collagen while promoting new collagen synthesis. A clinical study found that supplementation with pine bark extract significantly increased skin elasticity and reduced wrinkle depth by upregulating genes associated with hyaluronic acid and collagen production.^[39]

  Improved Circulation & Nutrient Delivery

  Pine bark extract supports healthy blood flow by enhancing endothelial nitric oxide production, which helps blood vessels dilate properly.^[40] This improved microcirculation means better delivery of oxygen and nutrients to skin cells, supporting their natural regeneration processes.

  Anti-Inflammatory Support

  The proanthocyanidins in pine bark extract help modulate the body’s inflammatory response by inhibiting NF-κB activation and reducing inflammatory enzyme production.^[41] This anti-inflammatory action complements Rejuven8’s curcumin to provide comprehensive support for skin health and recovery.

  At 50mg per serving standardized to 95% proanthocyanidins, Rejuven8 delivers a research-backed dose of this premium ingredient to support skin vitality, vascular health, and cellular protection from within.

How to Use Rejuven8

For optimal results, mix one scoop (17.3g) of Rejuven8 with 8 ounces of cold water. The refreshing fruity flavors make it an enjoyable addition to your daily routine. Here are some strategic times to consume Rejuven8:

• Morning Ritual

  Starting your day with Rejuven8 provides your body with immediate access to collagen and cellular support nutrients. This timing allows the ingredients to work throughout your day, supporting skin hydration, joint comfort, and sustained energy levels.

• Post-Exercise Recovery

  The combination of collagen peptides and creatine monohydrate makes Rejuven8 an excellent post-workout option. Collagen supports connective tissue health while creatine helps with muscle recovery and energy replenishment, creating a comprehensive recovery approach.

• Evening Wellness

  Taking Rejuven8 in the evening supports your body’s natural repair processes that occur during sleep. The anti-inflammatory properties of curcumin and the cellular protection from CoQ10 and pine bark extract work together to support overnight recovery and renewal.

Consistency Is Key

Collagen supplementation shows the best results when used consistently over time. The beneficial effects on skin elasticity, joint comfort, and overall vitality typically become more noticeable after 4-8 weeks of regular use.

Flavors Available

Here’s an up-to-date list of all flavors of GR8 Lifestyle Rejuven8:

Both flavor options offer a refreshing, pleasant taste experience that makes daily supplementation enjoyable. Passion Peach delivers a sweet flavor profile with natural peach notes that everyone is raving about, while Sunrise Punch offers a vibrant blend of citrus and fruit punch flavors.

Conclusion: A New Standard in Collagen Supplementation

GR8 Lifestyle Supplements has arrived at GNC nationwide! Their 5 innovative products each contain 8 science-backed ingredients for optimizing performance at work, rest and play.

Rejuven8 is the perfect example of what sets GR8 Lifestyle apart: the ability to take familiar supplement categories and elevate them through thoughtful formulation and premium ingredients. This isn’t just another collagen powder, it’s a comprehensive cellular health system designed to support your body’s natural resilience.

By combining high-quality collagen sources with clinically dosed performance ingredients, Rejuven8 provides a multi-faceted approach to healthy aging. The formula addresses both the visible signs of aging (skin elasticity, complexion) and the underlying cellular processes (oxidative stress, energy production, inflammation) that impact how we look and feel as we age.

The inclusion of ingredients like creatine monohydrate, CoQ10, and pine bark extract demonstrates GR8’s commitment to science-backed innovation – a cornerstone of the GR8 Lifestyle brand philosophy. These ingredients go beyond skin-deep benefits to support cellular health and vitality from the inside out.

Whether you’re looking to support skin elasticity, joint comfort, or overall wellness, Rejuven8 delivers a premium solution that transcends traditional collagen supplements. It recognizes that true vitality isn’t just about looking younger… it’s about supporting your body at a cellular level for sustained energy, resilience, and performance.