Science
Mechanism of Action
This ingredient primarily acts as an antioxidant, capable of mitigating cellular damage caused by free radicals. Its structural similarity to PHAs suggests a potential for mild exfoliation and hydration, though specific efficacy in these areas requires further investigation.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
δ-D-galactonolactone has been described as thermodynamically unstable. For optimal formulation, pH adjustment with amphoteric compounds may be necessary to control release and minimize irritation, particularly as related alpha hydroxy acids can irritate skin at lower pH levels.
Safety
Safety Profile
The Expert Panel for Cosmetic Ingredient Safety (CIR) has concluded that insufficient data are available to determine Galactonolactone's safety for cosmetic use. Essential impurities data are required for a comprehensive safety assessment. No cosmetic uses have been reported for this ingredient.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to insufficient safety data, including a lack of impurities information and no reported cosmetic uses by the CIR Expert Panel, the current integration of Galactonolactone into skincare formulations is not recommended.
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References
Sources