COSRX - The Vitamin C23 Serum
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COSRX The Niacinamide 15 is a highly concentrated serum that combines the maximum concentration of niacinamide with optimal ratios of synergistic ingredients for total acne control. Niacinamide calms breakouts, controls sebum and oil, diminishes the appearance of congested pores, exfoliates, and smoothes rough skin. Acetyl Glucosamine works in synergy with niacinamide to effectively fade hyperpigmentation. Zinc PCA inhibits inflammation and promotes the recovery of damaged skin.
This COSRX serum is recommended for those with acne-prone, oily, or combination skin, as well as for individuals with whiteheads, blackheads, and enlarged or congested pores.
Acne-prone, oily, combination skin | 20 ml
HOW TO USE
After cleansing, during the serum phase, apply a few drops to the skin. Use your fingertips to gently massage and absorb the serum, starting from the center of the face and working towards the edges.
INGREDIENTS
Ingredients We Love
Niacinamide (15%), Acetyl Glucosamine, Zinc PCA, Allantoin
Full Ingredients List
Water, Pentylene Glycol, Niacinamide (15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol
1. Order Processing Time
All orders are processed within 1–3 business days (excluding weekends and holidays). You will receive a shipping confirmation with a tracking number once your order is dispatched.
2. Shipping Methods
We use PostNL as carrier. Track & trace details will be sent via email.
3. Shipping Rates
Standard shipping within the Netherlands: €3.95
Free shipping on orders over €40
International shipping is not currently available
4. Estimated Delivery Time
Netherlands: 1–2 business days after shipment. Delivery times may vary during busy seasons or promotions.
5. Failed Deliveries or Incorrect Addresses
Please ensure your shipping address is correct. Additional charges for re-shipping due to incorrect information are the customer's responsibility.
