Yes, it's fine
Hair Follicle Activation Both GHK-Cu and TB-500 have distinct roles in the hair follicle
The key is bioavailability
Before approving a new drug, the FDA typically requires companies to conduct a type of study called a randomized controlled trial, in which study participants are allocated by chance to groups that either receive the drug, or are administered a placebo
Based on parents ratings, 52% of children in the methyl B 12 group responded to treatment compared to 26% of children in the placebo group (p=0.086) 2
Potential side effects may include injection-site redness, swelling, bruising, itching, tenderness, small lumps, headache, fatigue, nausea, appetite changes, abdominal discomfort, stool changes, dizziness, altered sleep, mood changes, or feeling off. Allergic or immune reactions are also possible, and the FDA has specifically raised concerns about immunogenicity and peptide-related impurities in compounded BPC-157