Science
Mechanism of Action
Nonapeptide-7 operates by acting as an antagonist to alpha-melanocyte-stimulating hormone (α-MSH). It precisely binds to the melanocortin 1 receptor (MC1R) on melanocytes, thereby inhibiting α-MSH from activating the receptor. This action leads to a reduction in overall melanin synthesis and suppresses the activity of tyrosinase, a crucial enzyme in pigment formation, mitigating dark spots and hyperpigmentation without compromising melanocyte integrity.
Research
Clinical Evidence
Medium confidence0.01%
Key findings
- 01 Clinical evaluations using Nonapeptide-1, a closely related peptide often referenced interchangeably in skincare, at an active concentration of 0.01% (corresponding to 1-5% in solution), demonstrated significant skin lightening. Over a 56-day period, participants experienced an average increase in skin lightness (△L) by 6.42% and an improvement in comprehensive skin state (△E) by 5.39%.
- 02 Further studies on Nonapeptide-1 also indicated a reduction in the severity scores of melasma and a decrease in the mean melanin index over a treatment duration of 28 to 56 days.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
For optimal stability and efficacy, formulations containing Nonapeptide-7 are recommended within a pH range of 5.0 to 7.0. It should be incorporated into the formulation at temperatures below 45°C during the final processing stage to preserve its integrity and activity.
Conflicts
- Formaldehyde-releasing preservatives (based on data for Nonapeptide-1)
Safety
Safety Profile
Nonapeptide-7 has not undergone specific review by the Cosmetic Ingredient Review (CIR) or Scientific Committee on Consumer Safety (SCCS). However, Nonapeptide-1, a closely related variant often considered interchangeably, is generally regarded as safe for topical cosmetic application. It demonstrates a low risk of irritation or adverse reactions and is well-tolerated across various skin types, including sensitive skin. Nonapeptide-1 has shown no apparent risks concerning carcinogenicity, developmental/reproductive toxicity, or immunotoxicity. The FDA does not mandate pre-market approval for cosmetic ingredients.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Nonapeptide-7 is a valuable ingredient for targeted hyperpigmentation treatment, effectively reducing melanin synthesis and improving skin tone with a favorable safety profile derived from related peptide research.
Related
Similar Ingredients
Finding similar ingredients…