Growth hormone (22 kDa), insulin (5.8 kDa but with poor sublingual permeability due to structure), and most antibody fragments (25-50 kDa) fall into this category
Direct Answer For gut-related targets, oral BPC-157 capsules have reasonable biological plausibility based on animal data showing local activity in gastric and intestinal tissue
Apply evenly to clean, dry skin and gently massage until fully absorbed
GHK-Cu works through gene expression modulation affecting repair pathways
Technical Specifications Technical Specifications Minimum Detection Limit3.763 g/mL Linear Range12.5-400 g/mL Reagents and Equipment Required but Not Provided Reagents and Equipment Required but Not Provided Analytical balance, mortar/homogenizer, low temperature centrifuge, water bath, adjustable pipette, spectrophotometer/microplate reader, micro glass cuvette or 96 well flat-bottom plate and distilled water