They're organic molecules that make up proteins and are naturally present in skin, hair and many other biological structures.

They help maintain a good level of moisture in the surface layers of the skin and support the skin's natural barrier.

While they don't have a direct anti-ageing effect per se, they do help skin remain soft. You'll find detailed information, including any tests carried out and distinctive features, in the various product sheets.

Yes, due to their nature they're also suitable for sensitive or dry skin. Of course, you should always check the information, INCI and specifications of each product if you have any doubts.

From foundations to make-up removers, amino acids such as lysine, arginine and alanine enrich the formulas of many of our products. You'll find detailed information, including any tests carried out and distinctive features, in the various product sheets.