SkinCeuticals Prevent - Antioxidants

Discover the groundbreaking Vitamin C antioxidants by SkinCeuticals, renowned for their patented formula that effectively safeguards against premature skin ageing and hyperpigmentation.

Most of the vitamin C serums here are built on L-ascorbic acid, combined with supporting antioxidants that differ from formula to formula — C E Ferulic, Phloretin CF and Silymarin CF each take a different approach, and that combination is what separates one antioxidant serum from the next. Our Academy guide to what a vitamin C serum is actually doing to your skin covers how concentration, pH and packaging change what you get from the bottle, which makes choosing between the formulations below a lot easier.

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Frequently asked questions

Which SkinCeuticals antioxidant serum is right for my skin?

Choose by skin type. C E Ferulic suits normal, dry and mature skin; Silymarin CF is oil-free for combination and blemish-prone skin; Phloretin CF targets discolouration and ageing on normal-to-oily skin. If you're new to vitamin C or reactive, begin with Serum 10 AOX+ and step up once your skin settles.

How do I use C E Ferulic correctly?

Apply four to five drops of C E Ferulic to clean, dry skin each morning before moisturiser and SPF, since vitamin C works best as your first-step daytime serum. Its antioxidant protection stays active for up to 72 hours after application, so once a day is enough. Give it eight weeks to see brighter, more even-looking skin.

What does ferulic acid actually do in these serums?

Ferulic acid stabilises the vitamin C and E pairing and boosts their antioxidant performance, which is why C E Ferulic and Phloretin CF neutralise more free radicals than vitamin C alone. That means stronger daytime defence against pollution and UV-induced dullness. Silymarin CF swaps in silymarin and salicylic acid instead, so it also keeps oily skin looking clearer.

Should I use an antioxidant serum at night as well?

Daytime serums like C E Ferulic and Silymarin CF give the most benefit under SPF, since their job is to defend against daily oxidative stress. For overnight repair, layer Resveratrol B E at bedtime, where its resveratrol and vitamin E blend supports the skin's own night-time recovery. Running one antioxidant by day and Resveratrol B E by night covers both halves of the cycle.

Which antioxidant kit gives me the best all-round start?

The Double Defence kits pair a vitamin C serum with a matched SPF 50 — C E Ferulic for dry skin, Phloretin CF for ageing concerns, Silymarin CF for oily and blemish-prone skin. As an authorised UK SkinCeuticals stockist we only supply fresh, genuine stock, so the formula performs as intended. It's the simplest way to lock in the prevent-and-protect step in one purchase.