There are of course lots of modern surfactants, but products such as sodium laureth sulphate (SLS) can, on sensitive skin, cause problems. Amino acid-based surfactants on the other hand have been shown to be skin-friendly even when used on a daily basis. Martina Spiegel presents the findings of skin irritation tests, efficacy tests and consumer trials carried out with sodium cocoyl glutamate and sodium lauroyl sarcosinate from Schill & Seilacher. The surfactants exhibited good results not only in their galenic and cleansing performance but also biodegraded well under aerobic and anaerobic conditions.
photo: Ramona Heim, Fotolia.com
