Advantage: Convenient, familiar, non-invasive Challenge: Peptides face proteolytic degradation in the stomach and small intestine Bioavailability: Estimated at approximately 38% based on comparative pharmacology (see below) Transdermal (Patch) Some researchers have explored transdermal patches to deliver peptides: Advantage: Avoids first-pass metabolism and GI degradation Challenge: Intact skin is a strong barrier to peptide penetration Feasibility: Not commonly available commercially
The Pyo 2007 study is the foundation, providing specific, statistically significant data on follicle elongation, dermal papilla cell proliferation, and three apoptosis markers in human follicle cultures
Liu Y, Zhou L, Lv C, Liu L, Miao S, Xu Y
Bio Suisse has terminated approval of silica or silicon dioxide
The feeling of losing a big chunk of my days was never a positive one