Science
Mechanism of Action
Functions as a humectant by binding moisture to the stratum corneum through its milk proteins (casein and whey), while delivering essential amino acids that support skin repair processes. The naturally occurring lactic acid provides mild keratolytic action, promoting gentle cell turnover and enhanced skin radiance without compromising barrier integrity.
Research
Clinical Evidence
Medium confidence5%
Key findings
- 01 Manufacturer data confirms 0.5-5.0% range effectively moisturizes and conditions skin while providing gentle exfoliation
- 02 European cosmetic database validates 5% concentration for improved skin texture and moisture retention
Transparency
Dusting Analysis
Limited to 5% maximum concentration with established efficacy range, indicating legitimate functional use rather than label decoration
The Formula
Formulation
Stability
Highly hygroscopic powder requiring airtight storage. Protein content vulnerable to denaturation above 40°C. Demands robust preservation in aqueous formulations due to microbial susceptibility.
Conflicts
- High-temperature processing above 40°C
- Strongly acidic environments below pH 4.0
- Strong oxidizing agents
Safety
Safety Profile
Covered under CIR milk-derived ingredients assessment. FDA recognizes buttermilk components as GRAS. Primary concern limited to individuals with milk protein allergies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A well-researched, multifunctional ingredient that delivers proven moisturizing and gentle exfoliation benefits with excellent safety profile for most skin types.
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References
Sources