Only available for sale to customers living in the UK and Ireland 8ml Travel Size - Ultra-stable vitamin C antioxidant serum - Helps combat sun-induced damage to the skin - Triggers collagen synthesis Medik8 C-Tetra Serum - 8ml Travel Size  Lipid Vitamin C Antioxidant Serum Medik8 C-Tetra® is a revolutionary ultra-stable vitamin C serum that helps combat sun-induced damage to the skin, trigger collagen synthesis, increase the skin’s elasticity and density as well as improve the skin’s texture and brighten the complexion. Regular vitamin C is very unstable and many typical vitamin C products are inactive by the time they are used on the skin, in some cases, they have become pro-oxidant and actually generate free radicals! Ground-breaking stability data on C-Tetra guarantees real vitamin C activity and best of all, unlike L-ascorbic acid (regular vitamin C), C-Tetra will not exfoliate or irritate the skin. Benefits: - Protects skin against oxidative stress the main cause of photo-ageing - Complements sunscreen creams. Once applied, C-Tetra® absorbs immediately and cannot be washed off - Adds a luminous glow to the skin, evens out skin tone and leaves it supple, bright and well hydrated - Protects against free-radicals, the high energy particles which damage collagen, the skin’s natural scaffolding - Helps stimulate collagen and elastin synthesis, causing the skin to tighten and erasing minor lines and wrinkles - Alleviates skin inflammation and UV-induced erythema (sunburn) - Actively fights against hyperpigmentation and post-acne blemishes - Increases physical resistance to capillary damage and thereby has benefits to redness-prone skin - Improves the lipid barrier of the skin and stimulates the production of ceramides - Formula is non-acne aggravating and non-comedogenic (does not clog the pores) Key Ingredients: Tetrahexyldecyl Ascorbate – A lipid-soluble form of vitamin C that provides exceptional antioxidant protection from harmful free radicals, while stimulating collagen production for a youthful complexion. Vitamin E – A lipid-soluble antioxidant that is naturally present in the skin. Vitamin E protects the skin from free radicals and is regenerated by vitamin C for optimum power. NO ARTIFICIAL FRAGRANCENO SYNTHETIC COLOURSPARABEN FREENO PHTHALATESPALM OIL FREEALCOHOL-FREEVEGAN FRIENDLYCRUELTY-FREE Directions: If you are new to Vitamin C serums then start with Medik8 C Tetra first before moving onto other formulas. Suitable for normal, sensitive & dry skin types. Ages 20\'s to \'30s. C Tetra has been formulated for direct application to the face. In the morning, after cleansing, apply 3-4 drops directly to the skin and blend evenly across the whole facial area, neck and décolleté. Alternatively, place a drop on your finger and massage it into the skin. Leave to absorb for 2-3 minutes. Follow with the application of Hydr8 Day or your preferred SPF hydrator/sunscreen. Apply water-based products first then oil-based th