If you're plant-based or your gut doesn't absorb nutrients well, you're at higher risk for running low
This wont be flagged on the lab until it is over 24.9 uIu/mL which is a state of severe insulin resistance
Smoking limits oxygen to your tissues, so bruises repair at a slower pace

basic mechanisms and clinical applications American Academy of Anti-Aging Medicine Thymosin beta 4 (Tb4) professional monograph (indications, dosage) Bachem Technical Note Peptide stability and handling guidelines International Journal of Clinical Pharmacy (2013) Evaluation of maximum beyond-use-date stability of peptide solutions CDC Vaccine administration: subcutaneous route (angle, site rotation guidance) WADA Prohibited List (2024) Growth factors and peptides prohibited in sport Arthroscopy (2025) Emerging use of BPC-157 in orthopaedic sports medicine: a systematic review PubMed (2010) Randomized, placebo-controlled, single and multiple dose study of intravenous thymosin beta4 in healthy volunteers CDC (Subcut Injection PDF) Technique diagram and site guidance for subcutaneous injections NCBI Bookshelf Administration of parenteral medications: best practices Additional Research and Background These sources provide related context and are not presented as support for a specific statement above

Store the peptide powder at a minimum of +4C for short-term use, and ideally at -20C or lower for long-term storage
Avoid using solutions of vitamin B containing benzyl alcohol in neonates, as gasping syndrome may occur