Human research1 sources
GHK-Cu
Skin science
Copper-binding tripeptide complex. Topical skin remodeling and extracellular-matrix biology.
Not FDA-approved as a drug
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Human studies
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35 molecule profiles10 research categoriesSource-linked. Education only.
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3 of 35 molecules
Human research1 sources
LL-37
Immune pathways
Human cathelicidin antimicrobial peptide. Antimicrobial defense, wound biology and immune signaling.
Not FDA-approved
Limited / uncertain1 sources
Melanotan II
Skin science
Nonselective melanocortin receptor agonist. Pigmentation and historical sexual-function research.
Not FDA-approved
Entries may appear in more than one category. Category placement describes research interest, not proven benefit. This is a curated selection, not a systematic review; source gaps are identified inside each profile.
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