Tripeptide-55
A antioxidant, skin protecting peptide ingredient listed in EU cosmetic databases—often used in repair & firmness formulas.
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Spotted this on a label?
Tripeptide-55
That’s the INCI name—the official way it appears on the back of your serum or cream. Same ingredient, different marketing names.
Structure (cute edition)
Tripeptide-55 is the synthetic peptide consisting of alanine, cysteine and serine.
INCI: TRIPEPTIDE-55 · ~3 amino acids in our simplified view
Research & public records
Counts and links from public databases (PubMed, ClinicalTrials.gov, Wikidata, NIH drug nomenclature). Educational only — not medical advice.
ChEMBL: MACROCYCLIC TRIPEPTIDE MOTIF
What brands say it does
Tripeptide-55 EU CosIng describes it as: Tripeptide-55 is the synthetic peptide consisting of alanine, cysteine and serine.. In skin care it is typically a supporting active—meant to complement hydrators and antioxidants rather than work alone.
Where you’ll find it
Recovery serums, post-treatment creams, and premium anti-aging formulas. Look for Tripeptide-55 on the INCI list.
Other names you might see
Tripeptide-55
Similar peptides
Educational only—not medical advice. Results vary; talk to a dermatologist for personal recommendations.