Trusted by 10,000+ Customers in United Kingdom
Cosrx demand is at an all-time high We're experiencing an unusually high volume of orders. Shop now to secure your favorites →
Cosrx

Cosrx Refresh AHA BHA Vitamin C Booster Serum 30ml

30ml

Cosrx Refresh AHA BHA Vitamin C Booster Serum revives dull skin with gentle exfoliation and brightening antioxidants.

£ 30.00£ 40.00 Save 25%

Cosrx Refresh AHA BHA Vitamin C Booster Serum revives dull skin with gentle exfoliation and brightening antioxidants.

100% Authentic · Free shipping over £ 75.00

  • Direct from authorized distributors
  • Sealed original packaging — batch code visible
  • Verify your batch number with Cosrx
  • 2× money-back guarantee if not authentic
How to use
- After cleansing and toning, apply 2–3 drops to face and neck. - Gently press until absorbed; avoid the immediate eye area. - Follow with moisturizer; finish with broad-spectrum SPF in the morning. - Start 3–4 times a week, then use daily as tolerated. Avoid mixing with strong retinoids in the same routine.
Key ingredients
- AHA (Glycolic/Lactic Acids): Smooth away surface buildup to reveal fresher-looking skin - BHA (Salicylic Acid): Clears debris within pores to reduce congestion and visible blackheads - Vitamin C (Ascorbic Derivative): Antioxidant brightener that targets dullness and discoloration - Niacinamide: Balances oil and improves the look of uneven tone - Hyaluronic Acid: Draws moisture to plump the appearance of skin and enhance comfort
Key benefits
- Promotes a clearer, more even-looking complexion with daily resurfacing - Visibly brightens the look of dark spots and post-blemish marks - Helps refine the appearance of pores and uneven texture - Lightweight, fast-absorbing formula layers well under sunscreen and makeup - Supports a fresher, more radiant glow without harshness
Transparent pricing

Why are we 25% cheaper than others?

We're not a typical retailer — we're a parallel importer.

  • We buy directly from authorized Cosrx distributors in bulk
  • We skip the middleman markup that retail stores add
  • Same authentic products, same batch codes, same manufacturer warranty — just without the retail premium
  • Every product comes with a batch code you can verify with Cosrx

We're transparent because we have nothing to hide.

  • 📦 Ships from our United Kingdom warehouse via FedEx/UPS
  • 🚚 2–3 day express delivery
  • 📍 Tracking number sent within 24 hours
  • 🇬🇧 No customs, no duties, no surprises
Learn More
Secure checkout — we accept
VISA AMEX  Pay

Top Picks

−60% Cosrx Advanced Snail 96 Mucin Power Essence 100ml
Cosrx
Cosrx Advanced Snail 96 Mucin Power Essence 100ml
£ 18.00 £ 45.00
−21% Cosrx The Peptide Collagen Hydrogel Eye Patch 85g
Cosrx
Cosrx The Peptide Collagen Hydrogel Eye Patch 85g
£ 30.00 £ 38.00
−10% Cosrx The Retinol 0.1 Cream 20ml
Cosrx
Cosrx The Retinol 0.1 Cream 20ml
£ 27.00 £ 30.00
−26% Cosrx The Retinol 0.3 Cream 20ml
Cosrx
Cosrx The Retinol 0.3 Cream 20ml
£ 28.00 £ 38.00
−23% Cosrx The Vitamin C 13 Serum 20ml
Cosrx
Cosrx The Vitamin C 13 Serum 20ml
£ 27.00 £ 35.00
−16% Cosrx Two in One Poreless Power Liquid 100ml
Cosrx
Cosrx Two in One Poreless Power Liquid 100ml
£ 32.00 £ 38.00
−20% Cosrx Ultimate Nourishing Rice Overnight Spa Mask 60ML
Cosrx
Cosrx Ultimate Nourishing Rice Overnight Spa Mask 60ML
£ 24.00 £ 30.00
−27% Cosrx Ultra-Light Invisible Sunscreen SPF50 PA++++ 50ml
Cosrx
Cosrx Ultra-Light Invisible Sunscreen SPF50 PA++++ 50ml
£ 24.00 £ 33.00
−27% Cosrx Vitamin E Vitalizing Sunscreen 50ml
Cosrx
Cosrx Vitamin E Vitalizing Sunscreen 50ml
£ 27.00 £ 37.00
−18% Cosrx OSRX Advanced Snail Mucin Power Gel Cleanser 150ml
−25% Cosrx Hyaluronic Acid Hydra Power Essence 100ml
Cosrx
Cosrx Hyaluronic Acid Hydra Power Essence 100ml
£ 21.00 £ 28.00
−25% Cosrx Hyaluronic Hydra Intensive Cream
Cosrx
Cosrx Hyaluronic Hydra Intensive Cream
£ 21.00 £ 28.00