Lau Siu-Yee, Dermatology Director of Shu Tin Clinic and Medical Director of Wah Yan Aesthetic Center, their primary differences are in peptide chain structure and target activity
These references are provided strictly for catalog clarity and laboratory research context
Irritation or breakouts If you're experiencing irritation that seems timing-related, you might be overloading your skin with too many actives too close together
Not manufactured with soy, milk, egg, fish, shellfish, tree nut or sesame ingredients

confirm exact ratio per batch) Purity : High purity (9899% HPLC per component batch-specific COA available) Form : Lyophilized powder (co-lyophilized) Intended Use : For research purposes only Chemical Compounds in the Blend BPC-157 Chemical Name : Body Protection Compound-157 Sequence : Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val Molecular Formula : CHNO Molecular Weight : ~1,794 Da Classification : Synthetic pentadecapeptide TB-500 (Thymosin Beta-4 fragment) Chemical Name : Thymosin Beta-4 active fragment Sequence : Ac-Lys-Lys-Thr-Glu-Thr-Gln (typical heptapeptide fragment) Molecular Formula : Varies by fragment (commonly referenced from Thymosin Beta-4) Molecular Weight : ~890 Da (for common fragment) Classification : Actin-sequestering peptide / regenerative fragment Research Background The BPC-157 + TB-500 blend is explored for complementary mechanisms: BPC-157 for localized tissue protection and healing, and TB-500 for systemic cytoskeletal organization, cell migration, and angiogenesis

Consistency: Regular administration might be required for optimal results, particularly for cosmetic applications, so consider your commitment to follow-up sessions