| abstract |
The invention relates to a system based on a phosphonic acid derivative andna metabisulfite to stabilize ascorbic acid.n n n The phosphonic acid derivative may in particular be ethylenediamine acidntetra (methylene phosphonic), hexamethylenediamine acid tetra (methylenenphosphonic acid), diethylenetriamine penta acid (methylenephosphonic acid), or ansalt of such an acid.n n n Metabisulfite is in particular sodium metabisulfite.n n n The invention also relates to compositions, in particular cosmetic andndermatological, containing ascorbic acid and this stabilizing system, andnthe use of these compositions in the cosmetic and / or cosmetic fieldsndermatological. |