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SAM's many roles: SAM is the primary methyl donor, used in DNA/RNA methylation, protein modification, and synthesis of neurotransmitters and hormones
Demirta H et al
Approximately five of the original 19 peptides are expected to remain on the restricted list likely those with more limited safety profiles, higher misuse potential, or closer proximity to existing FDA-approved drug categories
Its primary anti-aging action is accelerating epidermal cell turnover, normalizing keratinocyte differentiation, and reducing UV-induced MMP activation the process that degrades collagen after sun exposure
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