Science
Mechanism of Action
This hydroxy fatty acid increases collagen synthesis and enhances the production of transforming growth factor b1 within human skin fibroblasts, contributing to protection against UVB-induced photoaging. As an alpha-hydroxy acid, it reduces calcium ion concentration in the epidermis, effectively disrupting cell adhesion and accelerating desquamation for enhanced exfoliation. This process stimulates new cell growth, improves skin tone and texture, and deeply cleanses pores. Additionally, it exhibits antibacterial properties that help manage oiliness and reduce acne breakouts.
Research
Clinical Evidence
Medium confidence0.5%
Key findings
- 01 Clinical investigations indicate that concentrations between 0.1% and 1.0%, with 0.5% being optimal, significantly increase collagen synthesis and transforming growth factor b1 production in human skin fibroblasts. This efficacy translates into observed benefits such as protection against UVB-induced photoaging, reduction of oiliness, decreased acne lesions, and antibacterial action.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal efficiency is achieved within a pH range of 4.0 to 5.5, closely aligning with its pKa of 4.67-4.78. The ingredient tolerates heat up to 70°C, which can facilitate melting during formulation. For long-term stability (up to 24 months), store in a refrigerator (5-8°C) in a tightly sealed, moisture-free, semi-dark glass container, away from direct sunlight and heat.
Conflicts
- May increase sun sensitivity, a common characteristic of AHAs.
- Combination with retinoids is generally not recommended due to increased irritation potential.
- Incompatible with formulation components (preservatives, gums, emulsifiers, surfactants) that lack stability at low pH.
- Potential for acid-base reactions and Maillard reactions.
- Susceptible to interactions with impurities present in other raw materials.
Safety
Safety Profile
The CIR Expert Panel considers 10-Hydroxydecanoic Acid (Hydroxycapric Acid) safe for use at concentrations up to 1.0% when formulated to be non-irritating and non-sensitizing. While 82.1% of GHS reports do not indicate a hazard, 17.9% suggest potential for skin and serious eye irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Hydroxycapric Acid is a valuable active ingredient, demonstrating efficacy in collagen stimulation, exfoliation, and blemish control, provided it is precisely formulated within its specified concentration and pH parameters.
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References
Sources