SLS is commonly used in shampoos, hair conditioners and shower gels. It is a very harsh detergent used to make the products foam when used. SLS can cause irritation of the eyes, skin rashes and flaking skin, and possibly permanent damage to the eyes, especially in children.
Research was conducted in the Department of Dermatology at the School of Medicine, University of California on the ability of SLS to penetrate into the skin and underlying tissues. The research found that:
“Sodium lauryl sulphate penetrated the skin directly to a depth of about 5-6 mm below the applied site. Epidermal levels of the compound after application of 1% aqueous solution for 24 hours were above threshold levels known to evoke skin irritation responses. Deeper underlying tissues may also have been exposed to high levels of the compound.” [1]
SLS reacts with other chemicals found in shampoos and cleansers to produce nitrates, which can enter the blood stream easily.
Natracare products do not contain any sulphates.
References:
[1] Quantification of sodium lauryl sulfate penetration into the skin
and underlying tissues after topical application--pharmacological and
toxicological implications by Patil. S, Singh. P, Sarasour. K, Maibach.
H. J. Pharm. Sci.; VOL 84 ISS Oct 1995, P1240-1244, (REF 40) Dept. of
Dermatology, School of Medicine, Surge 110, Univ. of California, San
Francisco, CA 94143, USA.