COSRX

Face Serum

COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz)

Renewal Edition · 20 ml (0.7 fl oz)

  • COSRX The Vitamin C 13 Serum, Renewal Edition, 20ml
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COSRX

Face Serum

COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz)

Renewal Edition · 20 ml (0.7 fl oz)

A lightweight COSRX serum with 13% pure vitamin C, vitamin E and glutathione, for a brighter, more even-looking complexion. 20 ml.

Product details

An everyday vitamin C step

At 13%, this is the more moderate of the brand's vitamin C serums, made for daily use against dull, tired-looking skin and uneven tone. It absorbs quickly with no sticky feel, so it layers neatly under moisturiser.

Glutathione for post-blemish marks

Glutathione works alongside the vitamin C and tocotrienol (super vitamin E) to improve the look of pigmentation and marks left by blemishes. Caffeine, panthenol, sodium hyaluronate and niacinamide also appear on the ingredient list.

Plan it around your other actives

COSRX advises against using it at the same time as high-strength peptide products, retinol or its Niacinamide 15 Serum. Use them at different times of day, and keep the bottle in the fridge once opened to slow oxidation.

How to use

After cleansing and toning, shake gently once or twice and apply 2 to 3 drops, massaging outward from the centre of the face, once or twice a day. It can be used around the eye area, avoiding direct contact with the eyes. Follow with SPF 30 or higher in the daytime.

Before you choose

This is a concentrated cosmetic serum, so the manufacturer recommends a patch test: apply a little to a discreet area and wait 24 hours before using it on the face. For external use only. Stop using it and speak to a healthcare professional if irritation develops. Korean-market product: packaging may show Korean text.

Full ingredients

Water, Ascorbic Acid (13%), Butylene Glycol, Dipropylene Glycol, Tromethamine, 3-O-Ethyl Ascorbic Acid, Panthenol, Acetyl Glucosamine, Caffeine, Sodium Hyaluronate, Glutathione, Adenosine, Allantoin, Tocotrienols, Tocopherol, Niacinamide, Glycyrrhiza Glabra (Licorice) Root Extract.

Check your bottle for the formulation supplied.

About the brand

COSRX

Korean skincare brand known for snail mucin essences, peptide serums and gentle, simple routines across moisturisers, toners, masks and patches.

Shop all COSRX

Delivery & returns

Standard UK delivery: free on all orders. Estimated 2–3 working days after dispatch.

Express UK delivery: estimated 1–2 working days after dispatch. Free on orders over £50.

Please allow up to 2 working days for order processing; orders are often dispatched the next working day. Delivery times are estimates, not guarantees.

View full delivery information · View our returns policy

£24
£24
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COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz)
COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz) COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz)

£24

COSRX The Vitamin C 13 Serum, Renewal Edition, 20 ml (0.7 fl oz)

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