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This is good news for quality and safety, but it does not mean the FDA has approved these peptides as safe and effective

"Effects of topical creams containing vitamin C, a copper-binding peptide cream and melatonin compared with tretinoin on the ultrastructure of normal skin - A pilot clinical, histologic, and ultrastructural study"

The FDA has determined that NAC is excluded from the statutory definition of a dietary supplement under the Federal Food, Drug, and Cosmetic Act, because NAC was authorized as an active pharmaceutical ingredient (for acetaminophen overdose) before it was widely marketed as a supplement