Here’s What Happened When I Took Innerbody Labs Testosterone Support Supplements for 12 Weeks

I was part of the team that developed Innerbody Labs Testosterone Support after spending years digesting the scientific literature on the topic and reviewing other companies’ often lackluster testosterone boosters. And, like a ton of early-middle-aged men, I’m confronting the realities of declining testosterone levels. So, when the opportunity arose for me to try it for myself, with concurrent blood testing from Maximus Tribe — one of our favorite testosterone-testing companies — I jumped at the chance.

Over the course of 12 weeks, I cataloged what it was like to take Testosterone Support, including the best and worst parts of the experience. And the results did not disappoint. In fact, they lined up with what we intended this supplement to achieve based on all of the clinical research that guided the process of formulating it.

I had long suspected that my testosterone levels were lower than optimal. Even at my physical peak, I could never seem to get over the hump in the gym, seeing marginal gains after months of hard work. Over the past several years, I’ve had the opportunity to review around a dozen testosterone-testing services from various companies, and the results confirmed my suspicions:

my testosterone was suboptimal — not necessarily clinically low enough to warrant prescription intervention, but about as close to that as I could get. According to a 2002 review concerning the diagnosis of male hypogonadism (clinical low testosterone), a healthy average range for men would be around 300ng/dL-1,000ng/dL.1 I was at 347 ng/dL, good enough for about the 10th percentile of men (meaning 90% of men have a better number).

My free testosterone (a measure of usable circulating testosterone in the blood) was even worse. At just 69pg/mL, I represented the 2nd percentile; 98% of men had more free testosterone available for everything from strength training and fat loss to sexual performance.

Considering that the average man loses at least 1% of his testosterone production with every year of age past 40, and that my 40th birthday is fast approaching, that number could only get worse.2 So intervention seemed wise, even in the eyes of every medical professional with whom I shared these results.

My baseline test was more than just total testosterone, however. Free testosterone, luteinizing hormone, and other markers are also critical before and during the experiment. So, we made sure to test for these and others through Maximus Tribe, one of the best providers of at-home testosterone tests on the market.

Here were my baseline testing results:

• Total testosterone: 347ng/dL
• Free testosterone: 69pg/mL
• Vitamin D: 37ng/dL
• Luteinizing hormone: 6.9IU/L
• Follicle-stimulating hormone: 2.5IU/L
• Estradiol: 15pg/mL
• Sex hormone-binding globulin: 34.4nmol/L
• Alanine aminotransferase: 28U/L
• Total prostate-specific antigen: 0.9ng/mL

In addition to these parameters, I kept an eye on my body weight and my strength performance in a specific set of dumbbell workouts, which started out here:

Symptomatically, I wasn’t suffering from anything associated with hypogonadism — at least I didn’t think I was. My libido and sexual performance were steady, my energy levels were pretty good, and my general health was okay, as well. That said, my daughter started day care the previous fall, and she brought plague after plague upon our household, rendering my wife and me sick at least once per month from August of 2024 to April of 2025.

That period of protracted illness was initially one reason why I waited to begin my Testosterone Support experience after the supplement’s launch back in 2024. That consistent dip in general wellness could very well have been tied to the poor testosterone results I’d had for a couple of years, which ultimately motivated me further to try the supplement in earnest myself.

There are a lot of things to consider when evaluating the effectiveness of a testosterone supplement, and since this is just one person’s account, it’s less a scientific test than an anecdote. But I still wanted it to be as useful and illustrative as possible for men reading it. Toward that end, I'll describe my lifestyle, the pertinent factors I kept generally consistent, and how I incorporated Testosterone Support into my regimen.

We knew what the science said about the efficacy of each ingredient in Testosterone Support, so we had plenty of data on eventual increases in testosterone and improvements in other areas of health. But which outcomes would I feel first? When would I feel the difference? Would it even be palpable, or could I get all the way through with improved biomarkers but no meaningful change in my day-to-day life?

Well, the journey provided numerous data points that we hope demonstrate how the supplement might help you if you’re in a similar situation. So, let’s take a look at my experience week after week.

After 12 weeks of consistent supplementation with Innerbody Labs Testosterone Support, it was time to draw a little more blood and get some results. I collected my sample at exactly 12 weeks and at roughly the same time in the morning as I had drawn blood for my baseline. I even used the same testing company (Maximus Tribe) so the results would be as close to an apples-to-apples comparison as possible.

Here’s a look at the top page from the follow-up report:

As you can see, my total testosterone more than doubled, and my free testosterone rose more than 2.5 times its baseline number.

Here’s a complete breakdown of the results from my follow-up testing:

That’s a 2.15x increase in total testosterone and a 2.53x increase in free testosterone. This outcome is pretty consistent with research into specific ingredients in Testosterone Support that bore similar results. The Innerbody team was confident my experience would bear positive results, but I was still gratified to see such a definitive validation of our hard work.7

Now, some of these changes aren’t especially important to my experience. Take vitamin D, for example. We conducted this experiment as the weather was turning cold and the days were getting shorter, so we hoped for relatively stable D levels, and that’s what we saw. Other numbers might not be as important to you, like PSA, but my father is a prostate cancer survivor, so I wanted to make sure I didn’t see a spike in total PSA. And we didn’t, which is great.

Alanine aminotransferase (AA) is something we actually hadn’t thought much about before the experiment began, but it’s a measure of liver health.8 Higher numbers typically correlate with stress or damage in the liver, and we saw a 35% drop in AA, indicating that the four-capsule dose of Testosterone Support not only didn’t stress the liver but instead appeared to have improved it. Again, this isn’t a result that would surprise us, but given all of the misinformation surrounding ashwagandha and liver safety concerns, I think it’s worth mentioning here.

How Testosterone Support improved my physical performance

I’m no bodybuilder. I didn’t have a six-pack before the experiment, and I didn’t develop one over the course of those 12 weeks. That wasn’t the goal (though I have communicated to the team that I’m open to it for future experiments!). That said, even with a couple of weeks spent in a slight caloric deficit and another couple of weeks spent recovering from an upper back injury, I still managed to improve my strength numbers in every move I tracked.

Here’s a breakdown of my strength training performance at baseline and at follow-up:

With the exception of lateral raises, which saw a 100% increase in weight, I increased the rest of my exercises by a stout 50% over the course of 12 weeks. After speaking with several health and fitness experts and embarking on a yearslong training program of her own, Hilary Achauer wrote in the New York Times that around a 5% increase in weight each week is ideal.9 After 12 weeks, that should have been about a 60% increase. But I took two weeks off for injury and spent another two in a caloric deficit, meaning I kept pace with this ideal, and even slightly surpassed it with the help of Testosterone Support.

Based solely on my knowledge of the science behind Testosterone Support’s individual ingredients, I had been quick to recommend it to anyone who might have benefited from it. But by around weeks 4-5 of this experiment, I became even more evangelical about it.

The Zen philosopher D.T. Suzuki once said (and I’m paraphrasing, I’m sure) that “enlightenment is like everyday ordinary existence, just two inches off the ground.” And that’s been my experience with Testosterone Support. My life isn’t drastically different in one specific way or another. But I am noticeably stronger, noticeably better rested, noticeably less stressed, and noticeably more alert. And the accumulation of those advantages has been profound.