PR's Built On The Fundamentals

Athletic Performance
Built On Substrates

Foundational formulas engineered to maximize strength, endurance, recovery, and long-term performance.

Proven ingredients · clinically dosed · cGMP Certified
Athletic Performance
90-Day Money-Back Guarantee
Every Milligram on the Label
Made in a U.S. cGMP Facility
Secure Checkout
Matt Gemkow
There's no shortcuts

My coach always told me the difference between the pros and everyone else is they never skip the fundamentals.

Matt Gemkow Founder of Substrate
Real Ergogenic Results

Proof & Promises

Some brands have promises, some have proof. We have both. Age old, science backed ingredients that provide real results, or your money back.

01 — doses

Every milligram, on the front

If the research used 3.2g, the label says 3.2g. No blends to hide an under-dose.

02 — tested

A lab report on every batch

Every batch we produce gets third-party tested for purity and potency, and the COA gets published right here. Run one is in production now — its lab report drops the day it lands.

03 — honest

We tell you what it won't do

No miracle claims. We cite the studies, say what they found, and let that be the pitch.

Your next PR comes from executing the basics.

Not shortcuts. We lay out the basics. You do the work.

Shop Engine