Primeval Labs EAA Max Energy: Amino Acids with a Kick

Primeval Labs EAA Max Energy

BCAAs had a long run as king of intra-workout supplements. While there is some good research backing the effectiveness of BCAAs, EAAs have a far more comprehensive stack of evidence behind them.

The problem was taste. It is hard to formulate an EAA blend that tastes good. One company that has really changed that is Primeval Labs. With their classic EAA Max formula, Primeval Labs has released some flavors that are truly a pleasure to drink.

In this article, we’ll be discussing a version of EAA Max with a little extra oomph added to it. And by “oomph”, we mean caffeine — just 50 milligrams worth per scoop!

Primeval Labs EAA Max Energy

Primeval’s EAA Max Energy mirrors the EAA Max formula pretty closely, and therefore retains all of the awesome benefits of amino acid supplementation. From L-Lysine for muscle protein synthesis to L-Phenylalanine, which regulates neurotransmitter function, EAA Max Energy is a full-bodied amino blend that’s perfect for sipping during a tough workout.

Primeval Labs Logo

What differentiates EAA Max Energy from EAA Max is its inclusion of L-Taurine and caffeine for when you want that extra boost in the gym. It’s been out since 2017, but in 2023, it was touched up as part of Primeval Labs’ branding touch-ups – so this article’s been touched up as well!

We’re going to dive into the Primeval Labs EAA Max Energy formula, but first, let’s check the PricePlow for good Primeval Labs deals, and check out our video review of the supplement:

Primeval Labs EAA Max Energy – Deals and Price Drop Alerts

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Primeval Labs EAA Max Energy – How It Works

Each 9.1g scoop of EAA Max Energy contains the following ingredients:

    Primeval Labs EAA Max Energy Ingredients

  • 2:1:1 BCAAs (5,000mg)

  • EAA Max Energy uses a scientifically supported blend of BCAAs with a ratio of 2:1:1. This formulation provides specific amounts of Leucine (2.5g), Isoleucine (1.25g), and Valine (1.25g).

    Leucine is widely recognized as the primary activator of the mTOR pathway[1], which keeps you in an anabolic state (favorable for muscle building) while you exercise. This facilitates muscle growth without the need for excessive protein intake.

  • Essential Amino Acids (820mg)

    • L-Lysine HCl (300mg)

    • L-Lysine plays a crucial role in the synthesis of carnitine, which helps convert fat into energy and regulates cholesterol levels. In EAA Max, lysine contributes to muscle protein synthesis, assists in calcium absorption, and supports the recovery process.[2,3]

    • L-threonine (225mg)

    • Threonine plays a crucial role in protein building. It is particularly important for the synthesis of glycine and serine, which are key components for stimulating muscle protein synthesis.[4]

    • L-phenylalanine (200mg)

    • Phenylalanine serves as a precursor to Tyrosine, which is further converted into several important neurotransmitters such as epinephrine, norepinephrine, and L-Dopa. These neurotransmitters play a significant role in enhancing mood and energy levels, which are particularly beneficial during intense workout sessions.[5]

    • L-tryptophan (50mg)

    • Tryptophan is a beneficial asset during challenging workout sessions as it raises the pain tolerance threshold and improves mood. Despite the misconception that tryptophan induces drowsiness, its serotonin-boosting effect does not lead to daytime fatigue, especially when in an intense workout mode.

      Essential Amino Acids

      Amongst these primary amino acids, the essential amino acids are in red. Leucine, Valine, and Isoleucine are the three Branched-Chain Amino Acids.

    • L-histidine (25mg)

    • Beta-alanine’s endurance-boosting effects are dependent on the formation of carnosine, an intracellular buffer. Carnosine is produced when beta-alanine binds with histidine in skeletal muscle. Insufficient levels of histidine can hinder carnosine production,[6] resulting in suboptimal endurance. To fully reap the benefits of beta-alanine, it is essential to ensure an adequate intake of histidine either through dietary sources or supplements.

    • L-methionine (20mg)

    • Methionine serves as a primary antioxidant, providing protection against the harmful effects of free radicals and oxidative damage during intense training. Additionally, it acts as a precursor to the amino acids L-Taurine and L-Cysteine, both of which contribute to improved performance.

  • Primeval Labs EAA Max Energy

  • Stimulant & Hydration (1050mg)

    • L-taurine (1000mg)

    • Taurine, an osmolyte, plays a crucial role in regulating cellular water concentration,[7] aiding in cellular hydration alongside electrolytes. Taurine’s osmolytic properties contribute to its ability to improve athletic endurance even after a single dose.[8]

      It also acts as an antioxidant, protecting cells from damage caused by free radicals generated during intense exercise. Taurine supplementation can enhance calcium signaling in muscle cells, cognition, and focus by upregulating GABA receptors and reducing neural inflammation.[7-9]

    • Organic caffeine from Green Tea (PurCaf) (50mg)

    • In the brain, caffeine acts by blocking adenosine receptors, which are responsible for the anti-fatigue effects[10] commonly associated with caffeine. Adenosine, a nucleotide that contributes to feelings of fatigue, is inhibited by caffeine at the receptor level, thus helping combat tiredness. Additionally, caffeine inhibits the enzyme phosphodiesterase, which typically breaks down cyclic adenosine monophosphate (cAMP).[10] By inhibiting this enzyme, caffeine increases cellular activity, including neurons, leading to heightened alertness.[11,12]

      This isn’t a huge amount of caffeine — just 50 milligrams, less than a cup of coffee. Perfect if you want a tad of bonus energy in your workout (paired with a pre-workout like Ape Sh*t) or some afternoon energy. You can also two-scoop it and still not get overloaded!

All Primeval Labs EAA Max Energy flavors

Here is a full list of all EAA Max Energy flavors:

    Primeval Labs EAA Max

    If you’re looking for EAA’s without the added caffeine, check out Performax Labs EAA Max

    EAAs with a little bit extra

    The benefits of essential amino acids are clearly well-established. They are, well, essential to a broad array of bodily functions, many of which are vital for performance. Whether you’re looking for a physical or a mental boost, EAAs are often the solution.

    As if that weren’t enough, EAA Max Energy throws in a nice dose of Taurine and a pretty moderate dose of caffeine for that extra little boost in the gym. Put together with Primeval Labs’ killer flavors, and you have a recipe for consistent performance improvements in the gym. Check out our coupon-powered prices below

    Primeval Labs EAA Max Energy – Deals and Price Drop Alerts

    Get Price Alerts

    No spam, no scams.

    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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    1. Norton LE, Layman DK. “Leucine regulates translation initiation of protein synthesis in skeletal muscle after exercise”; J Nutr. 2006 Feb;136(2):533S-537S;
    2. Dort, Junio, et al. “Beneficial Effects of Cod Protein on Inflammatory Cell Accumulation in Rat Skeletal Muscle after Injury Are Driven by Its High Levels of Arginine, Glycine, Taurine and Lysine.” PLoS ONE, vol. 8, no. 10, 4 Oct. 2013, p. e77274, 10.1371/journal.pone.0077274;
    3. Datta D., Bhinge A., Chandran V. Lysine: is it worth more? Cytotechnology. 2001;36(1-3):3–32. doi: 10.1023/a:1014097121364;
    4. Feng, Lin, et al. “Threonine Affects Intestinal Function, Protein Synthesis and Gene Expression of TOR in Jian Carp (Cyprinus Carpio Var. Jian).” PLoS ONE, vol. 8, no. 7, 26 July 2013, 10.1371/journal.pone.0069974;
    5. Udenfriend, S., and J. R. Cooper. “The Enzymatic Conversion of Phenylalanine to Tyrosine.” The Journal of Biological Chemistry, vol. 194, no. 2, 1 Feb. 1952, pp. 503–511;
    6. Gariballa, S. “Review. Carnosine: Physiological Properties and Therapeutic Potential.” Age and Ageing, vol. 29, no. 3, 1 May 2000, pp. 207–210, 10.1093/ageing/29.3.207;
    7. Ripps, H. et al. Nov. 2012. “Review: Taurine: A “Very Essential Amino Acid.” Molecular Vision vol. 18. 2673-86.
    8. Waldron, M., et al. May 2018. “The Effects of an Oral Taurine Dose and Supplementation Period on Endurance Exercise Performance in Humans: A Meta-Analysis.” Sports Medicine vol. 48,5; 1247-53.
    9. Chen, C. et al. Aug. 2019. “Roles of Taurine in Cognitive Function of Physiology, Pathologies, and Toxication.” Life Sciences vol. 15, 231;
    10. Goldstein, E.R., Ziegenfuss, T., Kalman, D. et al.; “International society of sports nutrition position stand: caffeine and performance”; J Int Soc Sports Nutr 7, 5 (2010);
    11. Tanaka, S., and T. Koike. “Caffeine Promotes Survival of Cultured Sympathetic Neurons Deprived of Nerve Growth Factor through a CAMP-Dependent Mechanism.” Biochimica et Biophysica Acta (BBA) – Molecular Cell Research, vol. 1175, no. 1, 15 Dec. 1992, pp. 114–122; 10.1016/0167-4889(92)90017-6;
    12. Yoshimura, Hiroshi. “The potential of caffeine for functional modification from cortical synapses to neuron networks in the brain.” Current neuropharmacology vol. 3,4 (2005): 309-16. doi:10.2174/157015905774322543

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