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Right now is one of the best times of year to put on a bit of muscle.

You’re likely eating a little more.
You might be spending more time in the gym instead of being outside.
And honestly, it’s just a great window to add an extra day or two of weight training and focus on building muscle.

When people decide to do that, supplements always come up.

Most muscle supplements promise the moon.
Ninety-nine percent of them don’t do much.

But there are a handful that actually live up to the hype — with real science behind them.

Here’s the short list I’d personally bet on if building muscle is the goal.


The Supplements That Actually Matter for Muscle Growth

Protein (don’t skip this)

Cheap. Simple. Effective.

Protein spikes leucine, nudges insulin just enough, and flips the anabolic switch. It’s not fancy, but it’s easily the most impactful supplement for muscle growth.

If you’re missing this, nothing else matters.


Beta-Alanine

This one doesn’t build muscle directly.

What it does do is buffer hydrogen ion buildup, which lets you push deeper into the 8–15 rep range — the range where hypertrophy happens.

More quality reps equals more growth.

Up to 6 grams on training days focused on muscle (not low-rep strength).


Taurine

Taurine is a powerful antioxidant and a proven ergogenic aid.

Three to five grams on hard training days.

A 2021 review across ten studies found taurine improved time-to-exhaustion, anaerobic performance, and time-trial results.

In plain English: better endurance and better training quality.


Creatine

Creatine continues to take the top spot.

It’s the most studied ergogenic aid outside of caffeine, and it does far more than just boost strength.

There’s evidence it:

  • Supports muscle growth pathways

  • Helps cognitive performance during sleep deprivation

  • Supports brain energy metabolism

  • May even play a role in mood support

Creatine isn’t just for your biceps anymore.

I’ve consistently said this over the years because the data keeps backing it up — standardize your intake around 5–10 grams per day, every single day.

The real benefits come over months and years, not days.


Essential Amino Acids (EAAs)

Skip BCAAs.

EAAs are the amino acids your body must get from food or supplementation, and they’ve been shown to help preserve muscle and reduce breakdown.

If you train hard or diet aggressively at times, these matter.


Tongkat Ali (bonus for guys)

Some evidence suggests improvements in strength and performance, largely through testosterone-support pathways.

Not essential — but interesting if you’ve already nailed the basics.


The Part Most People Miss

Supplements are fun.
They’re exciting.
I love experimenting too.

But if we were talking in person, here’s exactly what I’d tell you:

Keep it simple.

Lift heavy.
Eat plenty of protein.
Be consistent.

That alone gets you about 80% of the results.

Supplements can give you an edge — but they’ll never replace the basics.

Creatine is the first one I’d start with.
Then, once the foundation is solid, you can experiment from there.


Want to Go Deeper on Creatine & Performance?

Creatine is usually framed as a muscle-building supplement, but the research goes far beyond size and strength.

In this video, I break down how creatine supports cellular energy, training output, cognitive performance, and long-term resilience — and why it remains one of the most studied ergogenic aids in human performance.

If you want to understand why creatine works (not just how to use it), this is a great place to start.

 

The Most Science-Backed Supplements for Building Muscle

Right now is one of the best times of year to put on a bit of muscle. You’re likely eating a little more. You might be spending more time in the gym instead of being outside.

Dumbbell and weight plate on gym floor representing strength training and fitness performance

June 30, 2026

Hello, I'm
Thomas Delauer

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I break down the research, simplify what matters, and share how I actually apply it in real life.

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The New Mediterranean Diet Cookbook

The Optimal Keto-Friendly Diet that Burns Fat, Promotes Longevity, and Prevents Chronic Disease

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