Peptopro is a trademark, standardized product that has a higher yield of di and tri peptides which may be better for protein synthesis. How much better? I couldn't tell you, but I always went ahead with the Peptopro. I am not gonna go look for you now, but in the past...True Nutrition had both Peptopro and Hydrolyzed Casein available...not sure if they do now?
Also for example, the old Plasma and Mag10 had hydrolyzed casein but not peptopro. Their products were quite overpriced...and their owners always told their sponsored athletes that the hydrolyzed casein was as good or better than peptopro...but they never proved it. I also know of NO product that has a higher yield of di and tri peptides than peptopro...unless Biotest made it....never touted it...or explained it...and no one else patented or sold it with that type of claim. Anyways....my guess is Biotest had regular hydrolyzed casein and you can find that for cheaper(or you used to be able to) and then there's Peptopro for those who don't want to fuck around. Either will be semi-rough to flavor, but I heavy double creamsicled it and loved it with the Glycofuse from 4-5 yrs ago. Delicious.
Now I do EAAs and water...or EAAs and HBCD. I could be tempted to do Peptopro again but I skip over the hydrolyzed casein. Maybe deserved or maybe I'm just paying a bit extra for nothing I can measure...I sleep fine and don't buy it til I save a little extra for it if need be.
Thanks. I totally forgot about peptoPro until I saw this thread. I went though a ton of it when Phil would pimp lba’s and peptoPro as most important supps like a decade ago. Also check out Nutrabio’s IntraBlast. EAA’s and bcaa’s with other stuff. Tastes great and all fermented but much cheaper to just get individual ingredients.