Pratol significantly increased melanin content and tyrosinase activity in the cells without being cytotoxic.

Schisandrin A is a main effective components extracted from the oriental medicine Schisandra chinensis, inhibits CYP3A activity with an IC50 of 6.60 μM and Ki of 5.83 μM, respectively.

IGF-I is partly responsible for systemic GH activities although it possesses a wide number of own properties (anabolic, antioxidant, anti-inflammatory and cytoprotective actions).IGF-I (24-41) (TFA) is amino acids 24 to 41 fragment of Insulin-like Growth Factor I (IGF-I).