Bio Serum Black is a protein blend of Bio Serum 1 and whey protein isolate.  We formulated Bio Serum Black with taste in mind.  We understand that some people cannot tolerate bad tasting protein drinks, so we created Bio Serum Black to solve this problem.

We solved the problem by combing Bio Serum with whey protein isolate and a very unique dutch cocoa powder that has never been utilized in the supplement industry.

If you just want 100% Bio Serum click below