In context
Nonapeptide-1 has been investigated as an ingredient in a proprietary topical combination for melasma maintenance. [1]
At a glance
- Type
- Topical cosmetic ingredient
- Regulatory context
- The cited source describes research, not a determination of present marketing authorisation. Country, formulation and indication must be checked separately.
- Evidence
- A combination-product trial cannot isolate one ingredient's contribution. Findings for a topical formula do not establish injected use or a general skin-lightening indication.
How to interpret this evidence
A combination-product trial cannot isolate one ingredient's contribution. Findings for a topical formula do not establish injected use or a general skin-lightening indication. [1]
Safety and clinical context
Topical cosmetic research does not support injection or other systemic use. Safety and tolerability depend on the complete formulation and the person using it.
Evidence and authorisation depend on the product, formulation, indication and country. US labelling does not establish Thai authorisation. This guide is educational and is not a dosing or self-treatment protocol.
Primary sources
Read the underlying source and its limitations. A study citation does not by itself establish efficacy or approval.