LACTIC ACID
Along with other alpha- hydroxy acids, lactic acid increases skin hydration and controls keratinisation.
LANOLIN (ANHYDROUS WOOL FAT)
Lanolin is derived from the sebum of sheep and is thought to be similar to human sebum. It is an excellent emollient, being highly water absorbent (up to about 30 per cent) and therefore a useful water-in- oil emulsifier. It is also occlusive. Purified and hypoallergenic derivatives have been developed to overcome the problem of sensitisation.
ISOPROPYL MYRISTATE
A fatty acid ester derived from coconut oil, isopropyl myristate is included as an ingredient in several emollients. It is stable in formulations, fairly readily absorbed into the skin, and has a good ‘skin feel’.
SOYA AND ALMOND OILS are also used in emollient products.