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However, deficiency requires treatment regardless of hair growth response

Many growth factors such as transforming growth factor (TGF)-, 2 platelet-derived growth factor (PDGF), 3 epidermal growth factor (EGF), 4 and fibroblast growth factor (FGF), 5 as well as interleukin (IL)-1 6 and tumor necrosis factor (TNF), 7 have been evaluated in a wide spectrum of in vivo and in vitro experiments to observe their effects on different elements included in the healing process

Can I develop tolerance or addiction to peptides

Your provider will personalize the plan based on your goals (skin support vs recovery vs both), prior peptide experience, and tolerance, and may recommend check-ins during the cycle to adjust timing or approach if you notice side effects or plateaued progress