Discover Medik8 Vitamin C's, carefully formulated to provide your skin with powerful protection against environmental stressors and promote a radiant, youthful complexion.
Choosing between Medik8's vitamin C formulas comes down to which form of the vitamin suits your skin and how you plan to layer it. Our vitamin C glossary entry explains how the water-soluble and oil-soluble forms differ, and the vitamin C serum buyer’s guide compares strengths and textures so you can match one to your skin type.
![Medik8 C-TETRA® | Vitamin C Serum | 30ml]()
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![Medik8 C-Tetra® Luxe 30ml-Serum-Skintique Retail]()
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Medik8
Medik8 C-Tetra® Luxe | Lipid Vitamin C Enhanced Radiance Serum | 30ml
£60.00Unit price /Unavailable -
![Medik8 C-Tetra® Cream-Serum-C-Tetra® Cream - 50ml-Skintique Retail]()
![Medik8 C-Tetra® Cream-Serum-C-Tetra® Cream - 12.5ml Travel Size-Skintique Retail]()
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Frequently asked questions
Which Medik8 vitamin C should I start with?
Which Medik8 vitamin C should I start with?
Start with C-TETRA, a stabilised oil-soluble vitamin C that suits first-time users and calmer skin. Once your skin is settled after 3–4 weeks, graduate to Super C Ferulic with 14% ethylated L-ascorbic acid or freshly activated Pure C15 for a stronger radiance and firming result. Apply in the morning after cleansing, before moisturiser and SPF.
How do I use a Medik8 vitamin C serum in my routine?
How do I use a Medik8 vitamin C serum in my routine?
Vitamin C goes on in the morning: cleanse, press 4–6 drops of C-TETRA or Super C Ferulic onto dry skin, then layer moisturiser and finish with SPF. It sits under a daily SPF beautifully and pairs with a retinal at night. This antioxidant-plus-sunscreen pairing is the backbone of Medik8's daytime approach.
What's the difference between C-TETRA and Super C Ferulic?
What's the difference between C-TETRA and Super C Ferulic?
C-TETRA uses tetrahexyldecyl ascorbate, an oil-soluble vitamin C that's gentle and slow-releasing, so it suits sensitive or newer skin. Super C Ferulic uses 14% ethylated L-ascorbic acid with ferulic acid and vitamin E for a more potent brightening and firming finish. Pure C15 sits at the top with 15% pure L-ascorbic acid in a freshly activated two-bottle format.
Which Medik8 vitamin C works if I want SPF built in?
Which Medik8 vitamin C works if I want SPF built in?
Reach for Daily Radiance Vitamin C, an SPF 30 moisturiser with vitamin C that visibly brightens while shielding against UV in one morning step. Layer it over a treatment serum, or use it alone on low-effort days. For a richer skin-feel with the same antioxidant benefit, C-Tetra Cream doubles as a vitamin C moisturiser.
Are you an authorised Medik8 stockist?
Are you an authorised Medik8 stockist?
Yes, Skintique is an authorised UK Medik8 stockist, so every C-TETRA, Super C Ferulic and Pure C15 is fresh and genuine. Vitamin C loses potency with age, so buying from an authorised source matters. Order before 2pm for same-day dispatch.
Not sure which Medik8 product is right for you?
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