NutraBio Maca Brings Trusted Peruvian Lepidamax to Market

Not finding any quality maca supplements? Not a problem anymore!

After years of rejecting failed maca extracts, NutraBio has partnered with Nutrition21 to bring you an updated Maca supplement based upon Nutrition21’s trusted and tested, Peruvian-grown Lepidamax.

NutraBio Logo

This post has been a long time coming! NutraBio is the industry leader in quality and transparency, and has been for quite some time. Today you’ll learn why.

Oh how we just love when things come full circle — especially when it brings consumers something superior. We’ve been waiting nearly two years to write this article and tie up this loose end, and the day has finally come:

The backstory: the maca market is straight garbage (2018)

Before getting into the product launch itself, let’s first go back in time to 2018, at the Mr. Olympia Convention. There, NutraBio Founder and CEO Mark Glazier was celebrating the launch of EAA Energy at a NutraBio “BioCrew” workout event in Las Vegas.

In a semi-profanity-laced interview, I got Mark fired up about not feeling his age. But he also went on a rant exclaiming how hard he was working to keep a quality maca extract in stock for NutraBio’s customers. Because none of the incoming maca ingredients from raw materials suppliers were passing the test. It’s at the 4:45 mark in the video linked below:

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Here’s what he said:

We’re out of stock in Maca for the last two months because the stuff is coming in and not passing.

We just got in on Friday a COA [Certificate of Analysis] that didn’t match the spec sheet on everything as far as heavy metals and microbials – they were above the spec sheet. So we asked for confirmation from the manufacturer in China, they sent another COA, from that, but it didn’t match the COA that the vendor here gave me! So we had two COAs with the same lot number on both of them, and they don’t match each other!

So you know somebody’s f***ing around and somebody’s cheating, so we have to disqualify the vendor, we have to send it back, so now we’re still backordered on it. I’m not going to put it in the product, I’m not going to sell it, I’m not going to put it on the market unless it matches 100%.

That’s why we test every ingredient in-house and send it to third-party. We’ve had a lot of problems with herbs in the last couple of years, we dropped a lot of them, but now we’re starting to come back with some stuff.

I mean a lot of you guys are out there complaining about our Maca being out for two months… that’s why. I’m not going to give it to you if it’s bulls***. If I can’t trust what’s going into the bottle, you’re not getting it.

That’s just the way we’re working it.

— Mark Glazier, NutraBio Founder and CEO, September 22, 2018

As always, we appreciate Mark’s transparency and candor. NutraBio did occasionally get some Maca out, but it’s been backordered more often than not because of the situation above.

Fast forward to 2019: Nutrition21 launches Lepidamax Maca

Good news was on the horizon, however. In the spring of 2019, top-tier ingredient supplier Nutrition21 decided it was time to fix the problem for good. They launched a trusted and tested form of Maca, calling it Lepidamax.[1]

We blogged about it, but most brands didn’t seem to know why it was so important at the time. Mark Glazier did, though, and here’s why:

Real maca grows in Peru!

Maca Root

Maca Root has had some serious quality issues the past couple of decades. That all changes right now.

The video with Mark Glazier above highlights a major issue with the maca market: China’s involvement. While we understand that a majority of our supplement ingredients come from China, and even cooperatively work with some of these suppliers (they don’t all behave as shadily as in Mark’s story), herbal ingredients have a different story.

Honest supplier or not, the fact is, Maca doesn’t grow properly in China! Real maca root is from the Peruvian Andes Mountains, which has the perfect climate, soil, and altitude to make potent maca root, also known as Lepidium meyenii or Lepidium peruvianum. Interestingly, this unique plant loves unpleasant conditions – it thrives in the freezing, windy climate at a 13,000ft altitude.[2] That hasn’t stopped the farmers for cultivating it since the 1500s, because its effects are that incredible.

Peru keeps it under lock and key, and while there have even been accusations of theft and smuggling of their seeds out of the country,[3,4] it almost doesn’t matter — because it grows best in the mountains of Peru!

And that’s exactly where this new ingredient comes from. Lepidamax: Real deal Peruvian Andes Maca. Trusted, verified, and tagged with CertainT.

2020: NutraBio Switches Maca to the Real Deal

NutraBio Maca Lepidamax

NutraBio Maca is back on the shelves, and powered by Nutrition21’s Lepidamax, it’s better than ever!

Finally, another year later, NutraBio has switched its maca source to Lepidamax after it passed the test and made the grade. Trusted. Tested. And from the Peruvian Andes – just the way it’s supposed to be.

When Nutrition21 launched it, they even published a study showing its effects on performance, and another one followed the year after using this specific ingredient. While I’m unsure of any personal performance gains, having run three bottles of the ingredient, I can assure you that it has other insane effects that are to be expected with Maca!

Below, we cover those studies and a bit more. But first, check out the prices on NutraBio’s new Lepidamax-powered Maca, and sign up for our NutraBio News alerts, because this brand is unstoppable these days:

NutraBio Maca – 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.

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Note: In the products listed above, look for the bottles with the “Lepidamax” logo on front and in the label, or get it directly from NutraBio with our PRICEPLOW coupon.

NutraBio Maca Ingredients

NutraBio Maca Ingredients

NutraBio Maca Ingredients feature Lepidamax from Nutrition21, and as always, no added fillers or excipients in the vegetable capsule!

The Supplement Facts Panel for NutraBio’s Maca simply lists 525mg of Lepidamax Gelatinized Maca root powder (Lepidium Peruvianum). As always with NutraBio, there are no fillers or excipients in their capsules, so that’s all you’re getting. There are 120 vegetable capsules per bottle.

As a trusted source of Peruvian Maca, we believe that most (if not all) research applying to Maca should apply to Lepidamax as well — so long as it’s dosed appropriately. But since we’re dealing with just Lepidamax here, we’ll first focus on its research, and then discuss a bit of the other maca research out there:

What are the benefits specific to Lepidamax Maca?


We’ve always known maca to be incredible, but the suppliers simply weren’t. Consider that problem solved: The Maca game has officially been changed by Nutrition 21’s Lepidamax

As a research-centric company, Nutrition21 has sanctioned one study specifically on Lepidamax, and provided the Lepidamax (yet didn’t fund) on another. Since they deal heavily in the sports nutrition industry (with ingredients like the Nitrosigine nitric oxide booster and the Velositol muscle protein synthesis amplifier), their studies involve performance. This is nice given that other general studies discussed lower down often involve fertility, libido, mood, and cognition.

Following the hints of a 2012 animal study that showed maca’s ability to increase endurance capacity,[5] Nutrition21 decided to take things in this direction with their initial foray into maca research:

  • The 2018 Lepidamax Endurance study

    Maca Lactate Reduction

    Paired with the increased endurance, this pre-clinical study shows that there could be something serious to Lepidamax

    Nutrition21’s research shows that Lepidamax may increase endurance capacity and decrease lactate levels in exercised rats.[6] This isn’t surprising given the data cited above,[5] but it’s great to see that it works on this specific extract as well.

    Theorizing how it works: Improved mitochondrial efficiency?

    When investigating the mechanism, it seems that Lepidamax increases the mitochondria’s ability to function efficiently. Mitochondrial health has been a major focus of the diet, nutrition, and supplementation industry, as the mitochondria are the “cell powerhouses” across your body. Chances are, if your mitochondria are running well, you’re running well – and the inverse is true as well.

    Any improvement to mitochondrial health is something worth investigating, whether you’re looking at athletic performance, longevity, sexual function, or general health.

    What’s nice is that the study was conducted on endurance-trained animals, so there are no concerns of “beginner gains”, which can apply to animals just like it does to rookies in the weight room! (Additional charts are shown on our Lepidamax article)

  • The 2019 Study on Fatigue, Handgrip Strength, and Sexual Performance

    A second study published in 2017 recorded 47 college-aged subjects for 28 days, and gave the maca group 2.1g of Lepidamax.[7]

    Lepidamax Maca Benefits Men

    For college aged users, Lepidamax yielded several benefits to the men!

    In this study, it was the men who reaped the benefits — they had statistically significant improvements in handgrip strength, a reduction in fatigue, and self-reported improved sexual function.[7] Women, however, had improvements but they failed to reach statistical significance.

    Given the college age of the participants and data (discussed below) from older women, we postulate that maca may have better effects for older females, as shown in two other studies cited below.

We look forward to Nutrition21 publishing more research on Lepidamax. Until then, we can look at some of the earlier research on general maca extracts:

Maca’s research-backed benefits in humans

The following research was mostly performed on humans, but with other maca extracts. It should apply to NutraBio Maca, but note that it wasn’t on Lepidamax.

  • Maca increases libido

    Most of us know that humans generally lose some (or much) of their sex drive as they age. Some struggle more than others with this, and it’s likely a function of diet, training, and social/environmental circumstances. However, maca has shown incredible potential in boosting libido in men,[7,8] and we can personally attest to the benefits of these studies applying to Lepidamax as well!

    Boosts libido and reduces symptoms of menopause in women

    Maca Libido

    Not only may it help sperm parameters, but maca helps in the libido department too![8]

    Women should cheer up too — maca seems to be effective in both genders: a 2008 study demonstrated that maca yielded increases in sexual drive in postmenopausal women.[9] Interestingly, it’s also been shown that maca is effective for the relief of menopausal symptoms in women![10]

    A bit of animal research for support acute supplementation

    Despite centuries of use, much of this “official” research started in 2001, where male mice were given either 15mg/kg or 75mg/kg for 15 days. Both dosages yielded higher levels of sexual drive compared to placebo,[13] and its effects began showing up on the first day of the study and lasted until the final day!

    This is exciting because it shows that maca may boost libido both acutely and chronically, which will excite those who are looking for both fast results and long-lasting results — if they transfer to humans. Anecdotally, however, it seems to take about a week to really start feeling the libido effects of maca.

  • Maca and male fertility

    Maca Fertility

    In just six weeks, maca provides some excellent fertility benefits

    In line with the studies above, maca extends beyond libido. It’s been demonstrated to increase sperm concentration and motility in double-blinded, placebo-controlled research.[11] This has been shown to work in both fertile and infertile men, where additional research showed it has the ability to improve sperm quality.[12]

    To summarize the libido and fertility research, those looking for “fertility gains” may want to at least give maca a serious shot before taking more drastic measures.

  • Mood enhancement: reduction of anxiety in women

    Libido isn’t the only thing that feels better with maca! It may in fact affect your overall mood!

    Maca Depression

    These results are no joke. Good maca works great for many of us.[9]

    Research on women demonstrated that a high dose of maca (3.5g/day) decreased symptoms of anxiety and depression, but did so without relation to androgen or estrogen levels.[9] This is important to note because it showed that it helped mentally but didn’t require hormone modulation to do so.

    It’s unclear why maca helps relieve anxiety in women (especially when men seem to get a bit more “riled up” with it), but this is something that’s frequently sought after. Women looking for this effect may also enjoy NutraBio’s KSM-66 Ashwagandha and NutraBio’s 5-HTP.

  • More cognitive benefits – improved memory?

    Oddly enough, the traditional use of maca has historically been for memory improvement and better learning capabilities, specifically in schoolchildren.[2] In 2011, researchers tested black maca on memory-impaired mice[14] (there are 12 maca phenotypes, but the main three are black, red, and yellow[2]). The results showed that it does enhance learning in memory in these animal models.

It will be interesting to see if any cognitive benefits are shown in human adults.

NutraBio Maca Dosage

You really can “choose your own adventure” with this supplement. NutraBio’s label (shown at the bottom of this post) states “1 capsule daily or as needed”.

However, a lot of research is pointing at higher doses – Nutrition21’s research points closer to 2.1g/day, which would be four capsules per day. This would give you a 30 day supply in a bottle.

If taking this “more adventurous” dosage, it may be best to space them into two separate doses of two capsules each – morning and evening.

Other supplements to stack

NutraBio Ashwagandha

A perfect complimentary stacker!

Your stack really depends on your goals.Here are some ideas:

  • For libido, don’t forget about NutraBio’s Tribulus Terrestris and NutraBio Yohimbine HCl (or the full-spectrum NutraBio Yohimbe if you want to get even more crazy). Just realize that Yohimbe is stimulatory and many are sensitive to it… but it works!
  • For fertility, see our Men’s Fertility Stack article, which includes NutraBio Maca as a key piece to the puzzle.
  • In terms of cognition and workout performance, NutraBio’s Alpha EAA could be of great assistance — on top of a full-spectrum panel of essential amino acids, it also has multiple sources of choline alongside KSM-66 Ashwagandha.
  • For those looking for additional anti-anxiety support, NutraBio KSM-66 Ashwagandha is an obvious add-on, as well as the 5-HTP mentioned above.

And of course, if looking for a pre workout supplement, you can never go wrong with NutraBio Pre Workout or NutraBio Pre EXTREME if you enjoy the added carbs and yohimbine!

A product release that circles the wagons

Nutrition21 Logo

Nutrition21 is a leader in the industry and takes huge steps towards making supplements safer, more effective, and transparent!

As you can imagine, we’ve been waiting for this product release for nearly two years! With as much trouble as Mark Glazier has had finding quality sources of maca, you really have to question the other stuff that’s out there on the market, such as many of the no-name brands on Amazon. How many of those brands out there actually test their incoming raw materials? We almost don’t want to know.

Stick with the good stuff… especially when it comes to herbs

NutraBio Maca Lepidamax


When it comes to synthetic ingredients, it doesn’t matter where it’s from, so long as it’s pure. But when it comes to herbal ingredients, the source does matter – and the source for maca simply needs to be Peru.

But just because we trust Nutrition21’s Lepidamax doesn’t mean Mark and team are taking their word for it — NutraBio will still be publishing 3rd-party lab tests, just like they do with every other supplement they produce. This is what it means to make supplements Without Compromise.

So, if you’ve been interested in maca but never knew where to turn, your search is over. Until further notice, NutraBio Maca, powered by Nutrition21’s Lepidamax, is the only option we can believe in.

NutraBio Maca – 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.

Note: In the products listed above, look for the bottles with the “Lepidamax” logo on front and in the label, or get it directly from NutraBio with our PRICEPLOW coupon.

NutraBio Maca Label

The official NutraBio Maca Label. We personally dose higher than 1 capsule per day, though!

About the Author: Mike Roberto

Mike Roberto

Mike Roberto is a research scientist and water sports athlete who founded PricePlow. He is an n=1 diet experimenter with extensive experience in supplementation and dietary modification, whose personal expertise stems from several experiments done on himself while sharing lab tests.

Mike's goal is to bridge the gap between nutritional research scientists and non-academics who seek to better their health in a system that has catastrophically failed the public.

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  1. Roberto, Mike, and Luther, CJ; “A Better Maca Ingredient: Lepidamax by Nutrition 21”; The PricePlow Blog; April 1, 2019;
  2. Gonzales, Gustavo F; “Ethnobiology and Ethnopharmacology of Lepidium meyenii (Maca), a Plant from the Peruvian Highlands”; Evidence-based complementary and alternative medicine : eCAM; vol. 2012; 2011;
  3. Daniells, Stephen; “BAPP Bulletin Details Adulteration of Maca Root and Root Extract.”; Nutra Ingredients; William Reed Business Media Ltd; 19 Sept. 2018;
  4. Smith, Tyler; Maca Madness: Chinese Herb Smugglers Create Chaos in the Peruvian Andes;
  5. Choi, E., et al; “Supplementation of Standardized Lipid-Soluble Extract from Maca (Lepidium Meyenii) Increases Swimming Endurance Capacity in Rats.”;Journal of Functional Foods; Elsevier; 4 Apr. 2012;
  6. Sylla, S., et al; “The effect of a proprietary maca root powder (Maca-N21) on endurance capacity in exercised rats”; Nutrition 21; International Society of Sports Nutrition Conference; 2018;
  7. Lia M. Jiannine and Jose Antonio; “The Effects of Lepidium Meyenii on Grip Strength, Fatigue, and Sexual Behavior”; The Journal of Exercise and Nutrition; Volume 2 (Issue 1): 6; 2019;
  8. Stone, M, et al; “A pilot investigation into the effect of maca supplementation on physical activity and sexual desire in sportsmen”; Journal of Ethnopharmacology; 126(3):574-6; December 10, 2009;
  9. Brooks NA, Wilcox G, Walker KZ, Ashton JF, Cox MB, Stojanovska L; “Beneficial effects of Lepidium meyenii (Maca) on psychological symptoms and measures of sexual dysfunction in postmenopausal women are not related to estrogen or androgen content.”; Menopause; 2008; 15(6); 1157–1162;
  10. Lee, Myeong Soo, et al; “Maca (Lepidium Meyenii) for Treatment of Menopausal Symptoms: A Systematic Review.”; Maturitas; Centre for Reviews and Dissemination (UK); Nov. 2011;
  11. Melnikovova, Ingrid et al; “Effect of Lepidium meyenii Walp. on Semen Parameters and Serum Hormone Levels in Healthy Adult Men: A Double-Blind, Randomized, Placebo-Controlled Pilot Study”; Evidence-based complementary and alternative medicine : eCAM; vol. 2015; 2015;
  12. Lee, Myeong Soo, et al; “The Use of Maca (Lepidium Meyenii) to Improve Semen Quality: A Systematic Review.”; Maturitas; U.S. National Library of Medicine; Oct. 2016;
  13. Cicero AFG, Bandieri E, Arletti R; “Lepidium meyenii Walp. improves sexual behaviour in male rats independently from its action on spontaneous locomotor activity.”; Journal of Ethnopharmacology; 2001; 75(2-3); 225–229;
  14. Rubio, Julio et al; “Aqueous Extract of Black Maca (Lepidium meyenii) on Memory Impairment Induced by Ovariectomy in Mice”; Evidence-based complementary and alternative medicine: eCAM; 2011;

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