Medik8 C‑Tetra Advanced – Potent Vitamin C & Ferulic Acid Serum 30ml
Medik8 C‑Tetra Advanced – High‑Strength Vitamin C Serum with Ferulic Acid
A powerful vitamin C serum combining 20 % tetrahexyldecyl ascorbate with ferulic acid to deliver intense antioxidant protection, brighten stubborn pigmentation and improve firmness.
C‑Tetra Advanced is Medik8’s highest‑strength vitamin C formula for experienced users. The serum blends 20 % lipid‑soluble vitamin C with ferulic acid, vitamin E and turmeric root extract for a potent antioxidant synergy. This combination neutralises free radicals, reduces appearance of hyperpigmentation and stimulates collagen for a firm, even complexion. Despite its strength, the formula remains gentle thanks to a nourishing base of botanical oils.
Key benefits
Defends against environmental stressors and photo‑damage.
Brightens dark spots and improves overall skin tone.
Promotes firmer, more resilient skin.
Rich yet fast‑absorbing texture.
Key ingredients
Tetrahexyldecyl ascorbate (20 %): ultra‑strength vitamin C.
Ferulic acid: antioxidant that stabilises and boosts the effect of vitamin C.
Vitamin E: regenerating antioxidant.
Turmeric root extract: anti‑inflammatory and brightening.
Botanical oils: nourish and support the skin.
How to use
Use in the morning after cleansing.
Apply 4 drops to face, neck and décolletage, avoiding eye area.
Follow with moisturiser and SPF.
Introduce gradually if new to high‑strength vitamin C.
Good to know
For experienced vitamin C users.
Vegan and cruelty free.
