Detailed Explanation
A peptide with exactly 3 amino acid residues joined by 2 peptide bonds. Despite their small size, several tripeptides have profound biological importance. Glutathione (γ-Glu-Cys-Gly) is the body's master intracellular antioxidant, present at millimolar concentrations in cells.
GHK-Cu (Gly-His-Lys + copper) promotes wound healing, collagen synthesis, and skin remodeling. TRH (pGlu-His-Pro-NH₂) controls thyroid function. In digestion, many tripeptides are absorbed intact via the PepT1 intestinal transporter, often more efficiently than free amino acids — making tripeptide supplements highly bioavailable.
The cosmetics industry uses synthetic tripeptides extensively in anti-aging products.
Key Facts
- A peptide with exactly 3 amino acid residues joined by 2 peptide bonds.
- Despite their small size, several tripeptides have profound biological importance.
- Glutathione (γ-Glu-Cys-Gly) is the body's master intracellular antioxidant, present at millimolar concentrations in cells.
- GHK-Cu (Gly-His-Lys + copper) promotes wound healing, collagen synthesis, and skin remodeling.
- TRH (pGlu-His-Pro-NH₂) controls thyroid function.
- In digestion, many tripeptides are absorbed intact via the PepT1 intestinal transporter, often more efficiently than free amino acids — making tripeptide supplements highly bioavailable.
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PeptideDefinition.com provides educational content about peptide science. Not medical advice. Consult a licensed healthcare provider for medical decisions.