| Regulatory reference: | Proprietary method |
| Claim: | Sebum-regulator |
| Application field: | Active ingredients or finished products. |
| Description of the test: | Quantification of the changes in the gene expression of 5α-reductase in human dermal papilla cells. Demonstration of the efficacy of the ingredient or finished product in reducing the expression of mRNA codifying for 5α-reductase type I or II. |