Inquiry about Recommended Usage Rate and Evidence for Licorice Extract (Licochalcone A) in Acne Gel
Question
Regarding the recommended usage rate for Licorice Extract (Licochalcone A) in acne gel formulations, as stated on the website:
"Usage Rate: 0.1% - 1%
Recommended Usage Rate: 0.5%"
I would like to request the detailed paper or evidence supporting why these specific usage rates are recommended for this ingredient.
Answer
Information on Licorice Extract (Licochalcone A) Usage Rates for Acne Gel
Licorice Extract, particularly the component Licochalcone A, is well-regarded in cosmetic formulations for its beneficial properties in addressing inflammatory skin conditions, including mild to moderate acne.
Based on the product information available, Licorice Extract (Licochalcone A 1%, Water-Soluble) is recommended for use at 0.5-1.0% for reducing skin oiliness, treating acne, inflammation, and irritation. For a more concentrated version, Hi-LiconeA™ Licorice Extract (Licochalcone A 20%) is recommended at a lower rate of 0.1-0.2% for similar purposes.
These recommended usage rates are based on the known efficacy of Licochalcone A, which includes anti-inflammatory, anti-irritant, and oil-controlling effects. While the product descriptions mention research results supporting these properties, detailed scientific papers or studies specifically justifying these exact percentage recommendations are typically found in the technical documentation or brochures provided by the ingredient supplier. This detailed evidence is not available directly through this system's product descriptions.
Therefore, to obtain the detailed papers or evidence explaining why these specific concentrations are recommended, it would be necessary to consult the technical data sheet or brochure for the specific Licorice Extract product you are interested in.