Dermalogica Biolumin C Serum This serum with ultra-stable Vitamin C complex brightens the complexion and reduces fine lines and wrinkles. Firms the skin and protects against environmental damage. Unique is its advanced technology. It transports Vitamin C deep into the skin and strengthens the skin's own defence mechanism. Contains an AHA for mild exfoliation. The benefits of Biolumin C Serum Reduces fine lines and wrinkles Brightens the complexion Improves skin elasticity for a firmer appearance Protects against harmful external influences How to use Biolumin C Serum Apply in the morning and/or evening. Gently use the pipette and apply 1 to 3 drops to the face and neck. Use after double cleansing and before moisturising. Apply an SPF during the day.