COSRX The Vitamin C 23 Serum 20ml

£17.95

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COSRX advanced vitamin C serum with 23% pure ascorbic acid to brighten skin, fade dark spots, and improve overall radiance.

  • 2-3 day UK delivery is £3.95 or FREE over £30

  • Next day UK delivery is £5.95 or FREE over £60

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Benefits.

A high-potency brightening serum formulated with 23% pure vitamin C to visibly improve skin tone and clarity.

This concentrated formula helps reduce dark spots, hyperpigmentation, and dullness while delivering strong antioxidant protection.

Enriched with vitamin E and hyaluronic acid, it supports hydration and helps minimise irritation commonly associated with high-strength vitamin C.

Designed for experienced vitamin C users, it leaves skin looking smoother, brighter, and more radiant.

COSRX The Vitamin C 13 Serum 20ml

How To Use.

  • Apply a few drops to clean skin
  • Massage gently into face and neck
  • Use morning and/or evening
  • Follow with moisturiser

Always conduct a patch test before use and use only as directed on the packaging. If you notice an allergic reaction stop and seek medical advice. Avoid storing in high/low temperatures or direct sunlight.

Ingredients.

Water, Ascorbic Acid (23%), Propanediol, Dimethicone, Butylene Glycol, 1,2-Hexanediol, Tromethamine, Panthenol, Tocopherol, Sodium Hyaluronate, Allantoin, Adenosine, Ethylhexylglycerin

This ingredient list applies to all variants of this product. Actual ingredients of a specific product option might vary from this list as the ingredients are subject to change at the manufacturer's discretion. Please check the product packaging for the most updated ingredient list.