Use daily, in the morning after cleansing and toning. Apply 4-5 drops to a dry face, neck, and chest and gently massage the product into the skin.

Skin Cosmetics recommends pairing the SkinCeuticals C E Ferulic Serum with the SkinCeuticals sunscreen to provide protection against ageing caused by environmental aggressors.

Formulations remain stable for 3 years, and for up to six months after first opening. If the solution changes colour, this is normal and will not effect the products efficacy.