BOOSTED! Natural Testosterone done right




Testosterone is absolutely critical for building muscle, burning fat, and increasing strength. It’s what makes a man, a REAL man. With it, everything in life is better -- physical performance, sleep, mood, body composition, etc. The list goes on. But, if you’re testosterone levels are lower than that of a prepubescent girl, you can kiss your gains, libido, and six-pack goodbye.

Some guys are simply born with better genetics and have superior testosterone production. Others aren’t so fortunate and struggle their entire lives with low testosterone levels. To further complicate the matter, once you reach age 30, testosterone levels naturally start to decline about 1% per year EVERY year until you die.


This is a major problem for men everywhere, as testosterone is involved in:


  • Sex drive and performance

  • Neurological function

  • Body composition

  • Cardiovascular function

  • Mood and sense of well-being

  • Hair growth

  • Vocal pitch


This is just a small fraction of the functions testosterone effects in the body. As you can see, testosterone is vital to a man’s health and well-being, but how can men combat the inevitable decline in their testosterone levels?


Well, there’s a couple of options -- purchase a natural testosterone booster, or go see a doctor and get on Testosterone Replacement Therapy (TRT). There’s a problem with each of these options though. Most guys absolutely hate going to the doctor and TRT is incredibly expensive.


As for natural testosterone boosters, they’re readily accessible, but just about every single one you’ll encounter is overpriced, underdosed, and ultimately, ineffective. Essentially, the only thing that’s changed is that your wallet is a bit lighter wallet.


Until now, that is. Thanks to Primeval Labs Neanderthal, men now have a truly effective supplement to naturally boost their testosterone levels. In fact, Neanderthal contains 11 different scientifically-validated ingredients to naturally boost testosterone, restore libido, enhance sexual performance, and improve recovery.


Here’s a look at a few of the key ingredients that make Neanderthal the best natural testosterone booster on the market:


Best Natural Testosterone Boosting Supplements


D-Aspartic Acid


One of the big differences between D-Aspartic Acid (DAA) and just about any other supplement on the market is that it’s been clinically proven to increase testosterone production. In fact, studies giving male test subjects 3g per day of D-aspartic acid (the same dose included in Neanderthal) for 12 days experienced a 42% increase in testosterone production![1]

What is D-Aspartic Acid?


D-Aspartic Acid is a non-essential amino acid naturally occuring in the human body and numerous foods. It plays a key role in the neuroendocrine system, especially the production of male sex hormones/androgens and growth. Essentially, d-aspartic acid stimulates the release of several hormones that affect testosterone production, including growth hormone, follicle-stimulating hormone, and luteinizing hormone. More of the hormones circulating throughout your body means better testosterone production -- exactly what you should be getting from your natural testosterone booster!

Mucuna Pruriens


Also known as Velvet Bean, mucuna pruriens is a medicinal plant used for years and years in Ayurveda as a natural libido and mood enhancer. The man-making botanical is high in the dopamine precursor, L-Dopa. With more L-Dopa, the body has the “raw materials” it needs to support dopamine production, one of the “reward” and “pleasure” hormones/neurotransmitters. Increased dopamine levels in the body support heightened mood and sense of well-being[2], but that’s not all L-Dopa does.

L-Dopa also inhibits prolactin release from the anterior pituitary (a major organ of the endocrine system), supporting kidney and liver function.[3] Additionally, L-Dopa can enhance luteinizing hormone and testosterone levels in the body and increase libido. The versatile compound also indirectly supports higher testosterone levels by reducing cortisol.[4,5] Chronically elevated levels of cortisol increases stress and fat storage while torpedoing your testosterone levels.


Basically, l-dopa acts as a hormone “regulator” of sorts that primes your body for maximum testosterone production.


Vitamin D3


Commonly referred to as the “sunshine vitamin,” Vitamin D is an essential fat-soluble vitamin that affects a number of functions in the body, including testosterone production. The problem is, most men (and women) are chronically deficient in it due to a variety of circumstances.


Why are they deficient?


Well, the body will naturally produce vitamin D when it’s exposed to sunlight. However, with longer commutes, more office jobs, and too much time spent in front of the tv, the vast majority of people aren’t spending enough time outdoors. This has led to the escalating deficiency in vitamin D for peoples across the world.


Vitamin D deficiencies have been associated with lower levels of free testosterone and higher levels of body fat and estrogen levels.[6] To make matters worse, low levels of vitamin D have also been linked to less lean mass, lower fertility, increased risk of depression and heart disease.


To combat the cascade of consequences (and restore your testosterone levels), supplementing with vitamin D is an absolute must. Neanderthal includes a stout 5,000IU Vitamin D3 (as cholecalciferol) in each serving. FYI, D3 is the more bioavailable form of vitamin d supplment, meaning it’s better absorbed and used by the body.


Studies giving men vitamin D have noted it boosts testosterone levels by as much as 20%[7], it may also prevent increased estrogen production by inhibiting aromatase, the enzyme that converts testosterone into estrogen.[8]




Science has determined that a strong association exists between sexual health, testosterone, and levels of zinc. Unfortunately, most people (especially athletes) are deficient in this essential mineral.


As you might expect, deficiencies of zinc can hurt your natural testosterone production and libido, but it doesn’t end there. Low levels of zinc also reduce immune function, affecting overall health. This is due to the fact that zinc is involved in multiple processes in the body.[9]

One of the most important functions of zinc is the production of IGF-1 (insulin-like growth factor-1), a hormone that significantly affects muscle growth and recovery.[10] Less IGF-1 means you have a harder time recovering from intense bouts of training and an even harder time adding muscle.


Suffice it to say that you need zinc, and if you’re a hard training athletes, it’s absolutely essential you supplementing with this mineral.


L-Carnitine L-Tartrate


Carnitine supplements have been around the supplement scene for quite a while. They’re typically billed as stimulant-free fat burners or weight loss aids, but the problem is most carnitine supplements use the regular L-Carnitine form, which isn’t all that effective for individuals outside of vegans, vegetarians, and/or the elderly.


What is carnitine important anyway?


Carnitine is a substance present in every cell of your body that facilitates the transportation of fatty acids into the mitochondria of the cell to be oxidized for energy. Basically, carnitine shuttles fat into your cells to be burned for energy, transforming you into a fat burning machine!


So, if regular l-carnitine is essentially useless for most of us, what’s a better option?


L-Carnitine L-Tartrate is the premier form of carnitine when it comes to maximizing recovery, testosterone production, and performance. It’s highly bioavailable and effective for all ranges of people. Studies have shown that L-Carnitine L-Tartrate can decrease soreness via lessening exercise-induced muscle damage, thereby improving recovery.


Regarding testosterone production, L-Carnitine L-Tartrate enhances androgen receptor density[11,12], which essentially makes your anabolic hormones (i.e. testosterone) more efficient. As an added bonus, carnitine supplementation also boosts sperm motility.[13]


Reclaim Your Manhood with Neanderthal


Men have been searching high and low for a solution to their low testosterone woes for decades, and Primeval Labs has finally delivered the answer in Neanderthal.


Nowhere else will you find a more complete, effective, or cost-effective means to restoring and improving your natural testosterone production than Neanderthal.




  1. Topo, E., Soricelli, A., D'Aniello, A., Ronsini, S., & D'Aniello, G. (2009). The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reproductive Biology and Endocrinology, 7(120), 1482-1488.

  2. Müller, T; “Acute levodopa administration reduces cortisol release in patients with Parkinson’s disease”; J Neural Transm. 2007 Mar;114(3):347-50;

  3. Boden, G; Influence of levodopa on serum levels of anterior pituitary hormones in man; Neuroendocrinology. 1972;10(5):309-15;

  4. Shukla, Kamla Kant et al.; Mucuna pruriens improves male fertility by its action on the hypothalamus–pituitary–gonadal axis; Fertility and Sterility, Volume 92, Issue 6, 1934-1940

  5. Yamada T, Nakamura J, Murakami M, et al. Effect of chronic L-dopa administration on serum luteinizing hormone levels in male rats. Toxicology. 1995;97(1-3):173-182.

  6. ee DM, Tajar A, Pye SR, et al. Association of hypogonadism with vitamin D status: the European Male Ageing Study. Eur J Endocrinol. 2012;166(1):77-85. doi:10.1530/EJE-11-0743.

  7. Pilz S, Frisch S, Koertke H, et al. Effect of vitamin D supplementation on testosterone levels in men. Horm Metab Res = Horm und Stoffwechselforsch = Horm  Metab. 2011;43(3):223-225. doi:10.1055/s-0030-1269854.

  8. Dahlquist DT, Dieter BP, Koehle MS. Plausible ergogenic effects of vitamin D on athletic performance and recovery. J Int Soc Sports Nutr. 2015;12(1):33. doi:10.1186/s12970-015-0093-8.

  9. Kylie, M., et. al. (2006). The effect of exhaustion exercise on thyroid hormones and testosterone of elite athletes receiving oral zinc. Neuro Endocrinology Letters. 27(1-2): 247-252

  10. Rocha ED de M, de Brito NJN, Dantas MMG, Silva A de A, Almeida M das G, Brandao-Neto J. Effect of Zinc Supplementation on GH, IGF1, IGFBP3, OCN, and ALP in Non-Zinc-Deficient Children. J Am Coll Nutr. 2015;34(4):290-299. doi:10.1080/07315724.2014.929511.

  11. Kraemer WJ, Volek JS, French DN, et al. The effects of L-carnitine L-tartrate supplementation on hormonal responses to resistance exercise and recovery. J strength Cond Res. 2003;17(3):455-462.

  12. Kraemer WJ, Spiering BA, Volek JS, et al. Androgenic responses to resistance exercise: effects of feeding and L-carnitine. Med Sci Sports Exerc. 2006;38(7):1288-1296. doi:10.1249/01.mss.0000227314.85728.35.

  13. Aliabadi E, Soleimani Mehranjani M, Borzoei Z, Talaei-Khozani T, Mirkhani H, Tabesh H. Effects of L-carnitine and L-acetyl-carnitine on testicular sperm motility and chromatin quality. Iranian Journal of Reproductive Medicine. 2012;10(2):77-82.