The correct step of applying C’smax L-ascorbic acid is after tonic, and make sure the skin is completely dry. After C’smax L-ascorbic acid is totally absorbed then following the next step. In addition, avoid the eyes during application. Use saline and go to see doctor if applying L-ascorbic acid into eyes unexpectedly.

          In general, the ordinary skincare product is all right for using when applying C’smax L-ascorbic acid (but not mix with C’smax L-ascorbic acid). But for fruit acid with high concentration (skin peeler function), it is suggested not to use when applying L-ascorbic acid at the same time.