CIR Safety Review: The CIR Expert Panel reviewed a study that indicated that Caprylyl/Capryl Glucoside (alkyl chain length: a mixture of 8 and 10 carbons in length) was not readily absorbed through the skin. At high concentrations Caprylyl/Capryl Glucoside was irritating and long-term skin irritation resulted in other adverse effects including body weight loss. No other adverse effects were observed at concentrations that did not cause skin irritation. Lauryl Glucoside was not a reproductive or developmental toxicant. Alkyl glucoside ingredients have not been found to be genotoxic. Clinical tests of products containing alkyl glucoside ingredients have found that the products were not dermal irritants or sensitizers.

Based on the data reviewed, the CIR Expert Panel concluded that the alkyl glucoside ingredients, including Decyl Glucoside, Lauryl Glucoside, Arachidyl Glucoside, Caprylyl/Capryl Glucoside and Coco-Glucoside were safe for use in cosmetics when formulated to be non-irritating.

Decyl Glucoside, Arachidyl Glucoside, C12-20 Alkyl Glucoside, Caprylyl/Capryl Glucoside, Cetearyl Glucoside, Coco-Glucoside, Ethyl Glucoside and Lauryl Glucoside may be used in cosmetics and personal care products marketed in Europe according to the general provisions of the Cosmetics Directive of the European Union.
Link to the EU Cosmetics Directive:
http://ec.europa.eu/consumers/sectors/cosmetics/documents/di...

Alkyl polyglucosides (sometimes abbreviated APGs) is a general term often used for Decyl Glucoside and other alkyl glucoside ingredients.