Loren Pickart estimated the lethal dose at approximately 22,500 mg for humans, which is 300-fold above effective doses
So, when a compound like BPC-157 gains this much traction, we feel it's our responsibility to provide an unflinching, science-backed perspective
The skin barrier is the outermost layer of your skin
This is due to how structurally similar it is to what your skin already produces

References Frontiers in Endocrinology (2021) Progress on the Function and Application of Thymosin 4 Annals of the New York Academy of Sciences Thymosin 4: roles in development, repair, and engineering of the cardiovascular system Frontiers in Pharmacology (2022) Pharmacokinetics, distribution, metabolism, and excretion of BPC-157 HSS Journal (2025) Emerging Use of BPC-157 in Orthopaedic Sports Medicine: A Systematic Review Current Pharmaceutical Design (2018) Stable Gastric Pentadecapeptide BPC 157: Novel Therapy in Gastrointestinal Tract Journal of Orthopaedic Surgery and Research (2019) BPC 157 and its effects on tendon healing CDC (2024) Vaccine Administration: Subcutaneous (SUBCUT) Injection NCBI Bookshelf (2023) Administration of Parenteral Medications Nursing Skills CDC (NCHS) Laboratory Procedure Manual: C-Peptide in Serum (storage guidelines) Additional Research and Background These sources provide related context and are not presented as support for a specific statement above

The Neuro Bundle brings together DSIP, Selank, and Semax in one nasal spray set