Important Safety Information Pregnancy or breastfeeding (hard contraindication for estriol-containing formulas) Hormone-sensitive cancer history (ER-positive breast, endometrial) flags estriol formulas for provider review Known copper allergy (GHK-Cu formulas) Open wounds, broken skin, or active infection at application site Wilson's disease or other copper-handling disorder (flag for provider review) Current SSRI, SNRI, MAOI, or TCA therapy (flag for methylene blue cream review) Frequently asked questions about skin & hair peptides What do peptides do for skin
However, it is important to acknowledge that free radicals are not inherently harmful and serve essential functions in normal physiology, such as cell signaling and immune responses
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Since a lack of glutathione can result in cellular defects, a deficiency may negatively impact any stage of the process, from sperm maturation, to fertilization, implantation, and early growth