The 5 Anti-Aging Supplements for Men That Actually Work (According to Science)

If you’re like most guys I talk to at the gym or in our Brainflow community, you’ve probably noticed those first few gray hairs or laugh lines and thought, “Is this really happening already?” While we’re busy with careers and fitness goals, biology keeps running its course.

I’ve spent the last decade testing just about every supplement that promises to slow aging. My bathroom cabinet looked like a pharmacy at one point, and my wallet felt significantly lighter. Most of these “miracle” products? Complete garbage backed by marketing instead of science.

Buried within the hype, there actually are compounds with legitimate research showing they can influence how we age at the cellular level. Not by adding a superficial coat of paint, but by addressing the fundamental mechanisms that cause our bodies and minds to decline.

In this article, I’m breaking down the five supplements that have not only impressed me in the research literature but have actually delivered measurable results in my own body and for many of the men I’ve worked with. We’re talking about better recovery times, improved cognitive performance, and yes, even some comments from friends asking “what are you doing differently?”

Two important notes before we dive in:

First, supplements aren’t magic pills. They work best when complementing solid nutrition, regular exercise, quality sleep, and stress management. If you’re crushing energy drinks and fast food while popping anti-aging pills, you’re trying to bail out a sinking boat with a teaspoon.

Second, not every supplement works the same for every man. Your genetic makeup, lifestyle, and current health status all influence how your body responds. The recommendations here are based on supplements with the strongest overall evidence for men.

Let’s get into the five supplements actually worth your investment if you want to slow down the clock.

1. NMN (Nicotinamide Mononucleotide): The Cellular Energy Booster

If aging is a power outage, NMN is like restoring electricity to your cells.

As we age, our levels of NAD+ (nicotinamide adenine dinucleotide) plummet. We’re talking up to 50% decline between ages 40 and 60. NAD+ powers hundreds of biological processes, especially in mitochondria, your cellular energy factories. Without sufficient NAD+, everything from muscle recovery to cognitive function takes a hit.

NMN is a direct precursor to NAD+, serving as fuel for your body’s energy creation system. When you supplement with NMN, you’re providing your cells with the raw material needed to produce more NAD+, effectively reversing one of aging’s most fundamental processes.

A 2018 study in Cell Metabolism demonstrated that NAD+ precursors like NMN can effectively restore declining NAD+ levels and improve various aspects of health. While the study examined both NMN and NR (nicotinamide riboside), NMN has emerged as the superior option based on bioavailability and cellular uptake efficiency.

NMN supplementation has been linked to:

• Improved muscle strength and endurance during training
• Enhanced recovery between workouts (this one’s been huge for me personally)
• Better glucose metabolism, which is critical for insulin sensitivity as we age
• Support for healthy testosterone production pathways
• Potential cardiovascular benefits, especially important for men over 40

I’ve been taking NMN for about 18 months now, and the difference in my recovery capacity is substantial. Where I used to need 2-3 days to bounce back from heavy leg sessions, I now feel ready to go again within 36 hours. The mental clarity boost was unexpected but welcome. I’m noticeably sharper in afternoon meetings than I was pre-NMN.

Dosage: Start with 500mg daily, taken in the morning on an empty stomach for maximum absorption. If you’re over 50 or training intensely, working up to 1000mg daily makes sense based on the current research. I found my ideal dose at 750mg.

What I use: Renue by Science NMN Powder. Their sublingual powder delivers superior absorption compared to capsules. Since NMN is a relatively expensive supplement, getting more value per dose matters. Their third-party testing protocols are among the most rigorous in the industry, and I’ve seen the certificates of analysis myself. I also did a full 90-day review of my experience with Renue NMN here. You can get 10% off Renue By Science using code BRAINFLOW at checkout. I negotiated this directly because it’s what I personally use and stand behind.

One thing worth noting: NMN works even better when paired with lifestyle habits that naturally support NAD+, like intermittent fasting and high-intensity exercise. Think of it as a powerful amplifier for the good work you’re already doing.

If you’re going to add just one anti-aging supplement to your regimen, NMN should be at the top of your list. It addresses a fundamental aspect of cellular aging that impacts virtually every system in your body. The research is solid, and the real-world results I’ve seen in myself and other men make this my highest recommendation.

RELATED READING: Harvard Researcher Dr. David Sinclair’s Anti-Aging Supplement List

2. BPC-157: The Wolverine Compound for Accelerated Healing

Every guy who’s ever dealt with a nagging injury needs to know about BPC-157. That tweaked shoulder, persistent tendinitis, or knee that just won’t cooperate? This peptide might be exactly what you’re looking for.

BPC-157 (Body Protection Compound-157) is a 15-amino acid peptide fragment derived from a protein naturally found in human gastric juice. Unlike most supplements that work through indirect pathways, BPC-157 appears to directly accelerate the body’s tissue repair mechanisms. It’s earned the nickname “the Wolverine peptide” in biohacking circles because of its regenerative effects on tendons, ligaments, muscles, and gut tissue.

A 2025 systematic review in HSS Journal analyzed 36 studies on BPC-157 spanning from 1993 to 2024. BPC-157 promotes healing by boosting growth factors, reducing inflammation, and improving outcomes across muscle, tendon, ligament, and bone injury models. In one human study, 7 out of 12 people with chronic knee pain reported relief lasting over six months after a single BPC-157 injection.

BPC-157 works through multiple pathways simultaneously. It modulates nitric oxide signaling, enhances angiogenesis (formation of new blood vessels), upregulates growth hormone receptor expression in damaged tissue, and stabilizes neuromuscular junctions. This explains why researchers have observed consistent positive healing effects across nearly every tissue type studied.

The benefits directly address our most common physical complaints as men:

• Accelerated recovery from training-related injuries and muscle strains
• Support for joint health and reduced inflammation
• Gut healing and improved digestive function, which is critical for nutrient absorption
• Protection against NSAID-induced stomach damage
• Potential neurological benefits through gut-brain axis support

I started using BPC-157 about eight months ago after dealing with chronic elbow tendinitis that wouldn’t resolve despite months of physical therapy. Within three weeks, the inflammation had decreased noticeably. By week six, I was back to full pressing movements without pain. That’s something I hadn’t been able to do in over a year. The gut health improvements were a bonus I wasn’t expecting; my digestion has never been more consistent.

Dosage: 500mcg twice daily (1000mcg total) is the standard protocol. Take it on an empty stomach, ideally one hour away from food. Some users prefer splitting doses between morning and evening for sustained effects throughout the day.

What I use: Infiniwell BPC Rapid Pro. Finding a quality oral BPC-157 supplement was a challenge until I discovered Infiniwell. Most oral peptides have notoriously poor absorption, but Infiniwell solved this by including Salcaprozate Sodium (SNAC), a bioavailability enhancer that dramatically improves how much active compound actually reaches your bloodstream. Their rapid-release formula is designed for upper GI support and acute joint needs, delivering 500mcg per capsule with no injection required. Every batch is third-party tested for purity, and their customer service team actually knows their products inside and out.

Note that while animal studies have shown no adverse effects across organ systems, BPC-157 is not FDA-approved and human clinical data is still limited. This is one of those compounds where you need to weigh the compelling preclinical evidence against the current regulatory status. For me and many in the biohacking community, the risk-benefit calculation has been favorable.

If you’re dealing with stubborn injuries, gut issues, or simply want to optimize your body’s natural repair processes, BPC-157 is worth looking into. It’s become central to my recovery protocol, and the feedback from readers who’ve tried it has been very positive.

RELATED READING: Andrew Huberman’s Anti-Aging Protocol to Boost NAD

3. Berberine: Nature’s Metabolic Reset Button

Berberine isn’t sexy. It’s not trendy. You won’t find celebrities hawking it on Instagram. But this compound has quietly been racking up impressive research while flying under the radar of mainstream supplement hype.

Berberine is an alkaloid extracted from several plants used in traditional Chinese medicine for centuries. Modern research has revealed it works through activation of an enzyme called AMPK, your body’s metabolic master switch that regulates energy homeostasis.

A 2008 study published in Metabolism compared berberine to metformin (a popular diabetes medication) in patients with type 2 diabetes. Berberine performed equally well at regulating blood glucose and lipid metabolism.

Berberine has been shown to benefit:

• Glucose metabolism, which is crucial as insulin sensitivity naturally declines with age
• Healthy cholesterol levels, especially lowering LDL
• Weight management through improved metabolic function
• Gut microbiome optimization
• Cellular energy production

I added berberine to my supplement regimen two years ago after my annual bloodwork showed my fasting glucose creeping up toward the high end of normal. Three months later, my numbers had improved significantly: fasting glucose down 9 points, LDL cholesterol reduced by 12%, and triglycerides dropped by 19%. My doctor actually asked what I’d changed in my routine.

Dosage: 500mg of liposomal berberine daily, split into two 250mg doses with meals. Standard berberine requires higher dosing (1000-1500mg) due to poor absorption.

What I use: Renue by Science Lipo Berberine solves the absorption problem using liposomal technology, wrapping the berberine molecules in phospholipids that can pass through the intestinal wall more easily. Their product delivers up to 5x better absorption than standard berberine HCl supplements.

If you’re also taking NMN (supplement #1 on this list), berberine makes an excellent stack partner. Research suggests berberine may enhance the AMPK activation that complements NMN’s NAD+ pathway effects.

Unlike some supplements that work through pathways we’re still trying to fully understand, berberine’s benefits are well-documented and mechanistically clear. It’s one of the few supplements where the before-and-after bloodwork tells the story in black and white. For men concerned about metabolic health as they age, berberine earns a spot in your daily regimen.

RELATED READING: Andrew Huberman’s Supplement List Revealed

4. Creatine Monohydrate: Beyond the Gym

“Creatine? Isn’t that just for college guys trying to get swole?”

That was my assumption too until about five years ago, when research started emerging about creatine’s effects beyond muscle. Turns out we’ve been sleeping on what might be the most well-researched, cost-effective anti-aging supplement available.

Creatine works by increasing your body’s phosphocreatine stores, which helps rapidly regenerate ATP, your cellular energy currency. Most guys know this translates to better performance in the gym, but your brain is a massive energy hog, and it benefits from that same ATP boost.

A 2018 review in Experimental Gerontology examined creatine’s effects across multiple body systems during aging. The researchers found that beyond muscle preservation, creatine supplementation showed significant benefits for:

• Cognitive function and brain health, including memory and processing speed
• Bone mineral density
• Glucose metabolism
• Mitochondrial efficiency

The cognitive findings hit home for me. You might be noticing those occasional “where did I put my keys?” moments becoming more frequent. After adding creatine to my regimen, my mental sharpness improved noticeably, especially during afternoon meetings when mental fatigue typically sets in.

The muscle preservation aspect shouldn’t be overlooked either. After 40, men naturally lose about 1% of their muscle mass annually. Since muscle tissue is metabolically active, this decline directly impacts metabolism, insulin sensitivity, and overall vitality. Creatine is one of the few supplements conclusively proven to help preserve that lean tissue.

I’ve tracked my body composition for years. After adding creatine to my daily routine, my seasonal fluctuations in muscle mass decreased significantly. I’m maintaining more consistently throughout the year, even during periods of lower training volume.

Dosage: 5 grams daily, mixed in your morning coffee or protein shake (it’s flavorless and dissolves completely). Consistency matters more than timing with creatine.

Forget the old-school “loading phase” protocols. They’re unnecessary and just cause digestive issues. Some fitness influencers recommend cycling off periodically, but the research doesn’t support this practice. Your natural creatine production doesn’t downregulate with supplementation.

What I use: The beauty of creatine is that it’s incredibly affordable and widely available. You want pure creatine monohydrate, nothing fancy needed. I use Optimum Nutrition’s Creatine Monohydrate for better mixability, but honestly, any reputable brand offering pure creatine monohydrate will work just fine.

This is one supplement where you don’t need to overthink it or break the bank. Just ensure you’re getting a trusted brand that provides third-party testing. If your creatine contains any ingredients beyond creatine monohydrate, you’re paying for marketing, not results.

Creatine has over 500 peer-reviewed studies supporting its safety and efficacy, making it one of the most thoroughly researched supplements available. While its muscle-building effects are well-known, the cognitive preservation benefits are what earn it a spot on this anti-aging list.

Also, creatine causes your muscles to retain more water (this is part of its mechanism of action). Make sure to increase your water intake by 16-20oz daily when supplementing to stay properly hydrated.

Creatine monohydrate earns a spot in any man’s anti-aging regimen for its muscle benefits and its emerging cognitive and metabolic advantages. At roughly $0.30 per day for a quality product, it offers possibly the best return on investment of any supplement mentioned in this article.

5. Magnesium L-Threonate: The Brain Rejuvenator

When I first started researching brain-optimizing supplements about seven years ago, magnesium kept appearing in the literature. But not just any magnesium. Specifically, this specialized form called magnesium L-threonate.

“Another magnesium supplement?” I thought. After all, you can find basic magnesium supplements at any drugstore for pennies a day. But as I dug deeper, I realized magnesium L-threonate operates on a completely different level when it comes to cognitive protection and enhancement.

What makes this form special is its unique ability to cross the blood-brain barrier and actually increase brain magnesium levels. Conventional forms like magnesium citrate or oxide simply can’t do this effectively. This matters for aging men, as brain magnesium levels tend to decrease significantly as we get older.

A 2010 study in Neuron demonstrated that magnesium L-threonate (also known as MgT) enhanced learning abilities, working memory, and both short and long-term memory in aging subjects. The researchers found it actually increased synaptic density and plasticity, helping the brain form new connections more readily.

The sleep findings resonated with me. As I’ve gotten older, quality sleep had become more elusive, which we now know accelerates cognitive aging. After adding magnesium L-threonate to my evening routine, I noticed not just falling asleep faster, but waking feeling genuinely refreshed. That had become increasingly rare.

My realization came about three months into supplementation, when I noticed I was recalling names and details in meetings without those awkward “tip of my tongue” moments that had been increasing in frequency. The cognitive clarity was subtle but unmistakable.

Dosage: 1,500-2,000mg daily (providing about 144-192mg of elemental magnesium), preferably taken in the evening as it can promote relaxation. Some research suggests splitting into two doses for optimal absorption.

Unlike regular magnesium supplements, which often cause digestive discomfort at higher doses, magnesium L-threonate is typically well-tolerated even at therapeutic doses. Start with a lower dose and gradually increase if you’re sensitive to supplements.

What I use: Momentous Magnesium L-Threonate. While there are several quality options on the market, I’ve found Momentous offers solid quality control and bioavailability. Yes, it’s more expensive than generic magnesium supplements, but the cognitive benefits justify the premium when you’re targeting brain health.

Look for products using Magtein™ (the patented form of magnesium L-threonate used in clinical studies) to ensure you’re getting the exact compound backed by research. Avoid products that blend different magnesium forms if cognitive enhancement is your primary goal.

While conventional magnesium supplements support overall health, only magnesium L-threonate has demonstrated the ability to significantly increase brain magnesium levels and enhance cognitive function in multiple studies. For men who want to stay sharp through their 50s, 60s, and beyond, this specialized form offers targeted benefits that other supplements can’t match.

Stacking for Synergy: Creating Your Anti-Aging Protocol

Now that we’ve covered these five supplements, you might be wondering: “Should I take all of these at once? And will they work together?”

Yes, these supplements work through different mechanisms and can create synergistic effects when combined. That said, I always recommend introducing one supplement at a time, allowing 2-3 weeks between additions to assess your individual response.

My suggested approach to building your stack:

1. Start with the foundation: Begin with creatine monohydrate and magnesium L-threonate. These are well-tolerated, have extensive safety profiles, and provide both cognitive and physical benefits you’ll likely notice within weeks.
2. Add metabolic support: Once established on the foundation supplements, introduce berberine. Pay attention to how it affects your energy levels and monitor your blood glucose if possible (continuous glucose monitors have become remarkably affordable and provide invaluable data).
3. Layer in the advanced compounds: Finally, add NMN and BPC-157. NMN is best taken in the morning to maximize its effects on NAD+ pathways, while BPC-157 can be taken twice daily on an empty stomach for optimal absorption.

Timing matters: take NMN with breakfast, berberine shortly before meals, creatine anytime (consistency matters more than timing), BPC-157 one hour away from food, and magnesium L-threonate in the evening to support sleep quality.

Consistency Over Perfection

After testing countless supplements and protocols over the past decade, I’ve learned that the perfect is often the enemy of the good. The five supplements outlined in this article have earned their place in my daily regimen because they:

1. Target fundamental aging mechanisms at the cellular level
2. Have robust scientific evidence supporting their safety and efficacy
3. Provide noticeable benefits to both cognitive and physical performance
4. Offer solid value relative to their cost

Will these supplements make you immortal? Of course not. But based on both the research and my personal experience, they can significantly improve your odds of maintaining physical vitality and mental sharpness as you age.

My parting advice is simple: start now, be consistent, and let your results guide your journey. Anti-aging isn’t about finding a magic pill. It’s about making informed choices daily that compound over time.