About Assay

Assay starts with a simple idea: if creatine is already one of the most straightforward supplements in sport, the brand around it should be just as clear. No inflated claims. No hidden standards. Just a straightforward way to present a daily essential.

What we stand for

Trust should be visible before the checkout.

Trust should be visible before the checkout.

Batch tested clarity

we don't think you should have to sort through testing certificates or learn about 3rd party ingredient brands. when you buy creatine, you should get creatine.

Batch tested clarity

we don't think you should have to sort through testing certificates or learn about 3rd party ingredient brands. when you buy creatine, you should get creatine.

Superior mixing

smaller particles mean a greater surface area and faster dispersion in water, juice, coffee or shakes. no gritty texture and no wasted dosage rinsed down the sink.

Superior mixing

smaller particles mean a greater surface area and faster dispersion in water, juice, coffee or shakes. no gritty texture and no wasted dosage rinsed down the sink.

Future athletes

elite coaching is distributed unevenly accross society. we will allocate 15% of our profits before tax to provide coaching for up and coming athletes who need it.

Future athletes

elite coaching is distributed unevenly accross society. we will allocate 15% of our profits before tax to provide coaching for up and coming athletes who need it.

A new standard in transparency

A new standard in transparency

Assay is being built for the boring work that actually matters: clear labels, credible claims, consistent routines, and a product you can trust.

© 2026 Assay

Supplement information only. Always follow label guidance.