By using super-pure 100% whey isolate and fast-acting whey hydrolysate, while completely omitting the use of whey concentrates, creamers, gums, and other fillers, we’re left with an industry leading Protein Purity Percentage (PPP) of up to 87%*. Gram for gram, R1 Protein has more fast-acting whey protein per unit of volume…period.


As Pure as it Gets.

This protein formula is as pure as it gets. With 25g of protein and over 6g of BCAAs — entirely from intact and hydrolyzed whey protein isolates — R1 Protein helps support the recovery and growth aspirations of the most ardant muscle builders.

25g fast-acting protein†

100% of protein from whey isolates and hydrolysate isolates 

6g+ BCAAs^^†

With all these pluses come some very positive negatives:  

ZERO Gluten**


ZERO Creamers

ZERO Fillers

ZERO Amino or Banned Substance Spiking


*PPP varies by flavor and is calculated as protein per serving (g)/serving size (g) x 100.

† Per serving

^^ Amino acids are naturally occurring and approximated.

**Excludes Cookies & Crème, which contains wheat gluten.