Hydroquinine (Inhibin®) has been approved for marketing in the Netherlands for the treatment of nocturnal cramps when treatment with drugs is considered necessary. It is available in the Netherlands since March 1990 as an over-the-counter drug with a dose of 200 mg with the evening meal and a further 100 mg at bedtime for 14 days. Hydroquinine also has antimalarial and demelanizing activity. It might be used to lightens light brown color patches on skin, age spots, skin discolorations associated with pregnancy, skin trauma or taking birth control pills. Hydroquinine is used in skin lightening creams and lotions because it is an effective bleaching agent, slowing the production of the tyrosinase enzyme and reducing the amount of melanin formed.

Menthyl lactate is derived from menthol, a compound that comes from peppermint oil, or is made synthetically. Menthol has a natural cooling effect, which makes it useful as a topical analgesic to treat skin irritation, pain, itching or sunburn. Despite its cooling benefits, menthol can be a skin irritant. Like menthol, menthyl lactate is cooling, but it causes less skin irritation than menthol. Menthyl lactate also has a refreshing, minty taste. For this reason, some manufacturers use it as a flavoring ingredient. The compound is recommended for use as a flavor in concentrations of 0.005% to 0.2% and in cosmetic and other external products in concentrations ranging from 0.2% to 2.0%. Menthyl lactate is a known compound available e.g. from Haarmann & Reimer GmbH (Germany) under the name FRESCOLAT, Type ML.

Magnesium diamide is used as a chemical intermediate. Magnesium diamide is spontaneously combustible. It is toxic by inhalation. Skin or eye contact may cause severe burns.