Brighten and protect your skin with Medik8 C-Tetra® Serum, a daily vitamin C antioxidant serum formulated with a stable, skin-friendly form of vitamin C that helps improve the appearance of uneven skin tone, dullness, and early signs of aging. Lightweight and fast-absorbing, this serum delivers powerful antioxidant protection while supporting overall skin health and radiance.

Ideal as part of your morning skincare routine, C-Tetra Serum layers beautifully under moisturiser and SPF for everyday environmental defence and brighter-looking skin.

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Why You’ll Love It

• ✔ Helps brighten dull, tired-looking skin

• ✔ Helps improve skin tone and texture

• ✔ Provides antioxidant protection against environmental stressors

• ✔ Lightweight, fast-absorbing serum

• ✔ Works well under moisturiser and SPF

• ✔ Suitable for all skin types, including sensitive

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Key Ingredients & Benefits

• Ascorbyl Tetraisopalmitate (Vitamin C) – A stable, oil-soluble vitamin C derivative that penetrates deeply to boost brightness and help protect against oxidative stress

• Antioxidant Complex – Supports skin health and helps defend against free-radical damage

• Skin-Conditioning Agents – Aid hydration and soft, smooth texture

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How to Use

Apply 2–3 drops to clean, dry skin each morning after cleansing and toning.
Gently smooth over face and neck, then follow with your moisturiser and broad-spectrum SPF for daytime protection.

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Who Is This For?

Perfect if you:

• Want brighter, more radiant skin

• Are tackling uneven tone or dullness

• Prefer a daily vitamin C antioxidant serum

• Use antioxidant protection as part of your everyday routine

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Product Details

• Brand: Medik8

• Product Name: C-Tetra® Serum

• Size: 30 ml

• Texture: Lightweight serum

• Skin Type: All skin types

• Use: AM

• Category: Vitamin C antioxidant serum

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Important Information

For best results, use daily and always follow with SPF during daytime. If irritation occurs, reduce frequency or consult a skincare professional.