Ingredient or product comparison
Best Peptides for Skin Brightening Research: Mechanism Comparison
Alpha-Arbutin Competitive tyrosinase inhibition 0.5–2.0 mM Water-soluble, pH 5–8 stable Stable 12 months at −20°C, 8 weeks at 4°C post-reconstitution Enzymatic inhibition studies, dose-response curves Kojic Acid Tripeptide-1 Copper chelation, indirect tyrosina
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- Alpha-Arbutin
- Competitive tyrosinase inhibition
- 0.5–2.0 mM
- Water-soluble, pH 5–8 stable
- Stable 12 months at −20°C, 8 weeks at 4°C post-reconstitution
- Enzymatic inhibition studies, dose-response curves
- Kojic Acid Tripeptide-1
- Copper chelation, indirect tyrosinase suppression
- 1–5 mM
- Requires DMSO co-solvent above 2%
- Degrades in phosphate buffers, use HEPES
- Metal cofactor dependency research
- Oligopeptide-68
- PAR-2 receptor antagonist, melanosome transfer blocker
- 25–100 μM
- DMSO or ethanol carrier required
- Light-sensitive, store in amber vials
- Transfer mechanism isolation, keratinocyte co-culture models
- Reduced L-Glutathione (GSH)
- Tyrosinase inhibition + pheomelanin shift + antioxidant signaling
- 0.5–5 mM
- Water-soluble, oxidizes rapidly in air
- Requires nitrogen purging, use within 48 hours of reconstitution
- Multi-pathway studies, oxidative stress models
- Nonapeptide-1
- Alpha-MSH receptor antagonist, upstream signaling blocker
- 1–10 μM
- Water-soluble
- Stable, minimal degradation
- Receptor binding studies, signaling cascade research
- Acetyl Hexapeptide-1
- Transglutaminase inhibition, melanin polymer destabilization
- 10–50 μM
- DMSO carrier
- Moderate stability
- Pigment durability studies, post-synthesis modification