Milk protein isolate as the first ingredient delivers naturally low lactose for easy digestion
Whey and casein blend provides both fast and slow protein absorption for muscle recovery
Third-party tested for quality and purity ensuring product reliability
Available in multiple flavors and sizes to suit different preferences and needs
Low carb, gluten-free, and keto-friendly to fit a wide range of dietary goals
Summarized by Shop
Select Protein is the protein powder that started it all — a premium blend of whey and casein that delivers sustained amino acid release, superior digestion, and flavors so good you’ll actually look forward to your next shake.
Most protein powders cut corners on ingredients. Select doesn’t. Milk protein isolate is the #1 ingredient — a ra
Protein Source
Whey protein, Casein protein (milk protein isolate)
I've now tried every flavor that's regularly available and some of the seasonal options. While I generally prefer the non-chocolate options they are all consistently great. They mix well, they digest well, taste pleasant and work well in recipes too. The Select proteins are worth the cost even as the cost of protein powders have risen in recent years.
A
Alfred · August 20, 2026
Versatile!
I have probably tried 10 flavors of PEScience at this point and this is now my preferred brand! I mix it with Greek yogurt and freeze it for dessert, with oatmeal in the morning and plan to try baking with it this weekend! I think it’s the perfect sweetness for my taste. I typically use less than half a scoop for the above mentioned uses and they always turn out delicious.
K
Kristin · August 18, 2026
New island cookie flavor
This flavor is delicious! I normally add my protein powder in my oatmeal and this works fantastic! I tried it on its own in a shake with just water abd ice, it was delicious!