The Blue Alga, rich in vitamin E, B3, and mineral salts, is known for its revitalizing and regenerating effects on the skin. Combined with the massaging fabric, it increases the cleansing power of the pads. The azzurro side of the pad, moistened with cleansing lotion or toner, releases the active ingredients of the Blue Alga. After use, the colored side will appear lighter, as evidence of the pad's action.