Collection: COSRX

COSRX rose to global fame on the back of its Advanced Snail 96 Mucin Power Essence — one of the most-loved K-beauty products of all time, with snail secretion filtrate at 96.3% concentration for repair, hydration and post-acne mark fading. Beyond snail mucin, COSRX is recognised for the AHA/BHA Clarifying Treatment Toner, BHA Blackhead Power Liquid, Propolis Light Cream, and ingredient-led routines that prioritise one or two heroes per formula. The brand sits between mass-market accessibility and clinical efficacy, making it a go-to for K-beauty beginners and routine-builders.

Yes — snail secretion filtrate (SSF) has documented clinical benefits including fibroblast stimulation, accelerated wound healing, and improved skin barrier function. These benefits translate into faster fading of post-inflammatory hyperpigmentation (the dark marks left after a breakout heals), reduced redness, and improved overall skin texture. COSRX's 96.3% concentration is one of the highest on the market, which is why it's often the first product recommended for acne-prone skin recovering from breakouts. Visible results typically appear after 4–8 weeks of daily use.

The BHA Blackhead Power Liquid contains 4% betaine salicylate (a gentler form of salicylic acid). BHA is oil-soluble, meaning it can penetrate into pores and dissolve the sebum, dead skin cells and debris that form blackheads and clogged pores. Used 3–4 evenings per week on clean, dry skin (especially the T-zone, nose and chin), it visibly reduces blackheads, smooths bumpy texture and prevents new comedones over 4–6 weeks. Pair with hydrating products and daily SPF50+ since BHA increases sun sensitivity.

Yes — both serums use pure L-ascorbic acid (the gold-standard form of vitamin C), but at different concentrations. Vitamin C 13 is the beginner-friendly version, suitable for sensitive skin or first-time vitamin C users. Vitamin C 23 is the high-strength version, suitable for users who have built tolerance and want maximum brightening and antioxidant benefits. The 23% concentration is at the upper limit of effective use — higher percentages don't deliver better results and can cause irritation. Apply in the morning, follow with SPF50+, and store in a cool place since pure L-ascorbic acid oxidises with light and heat.

A gentle COSRX routine for sensitive, acne-prone skin: Cleanse with Low pH Good Morning Gel Cleanser or Salicylic Acid Daily Gentle Cleanser → Tone with the 5 PDRN B5 Vital Soothing Toner → Treat with Advanced Snail 96 Mucin Power Essence for repair, or BHA Blackhead Power Liquid 3 nights/week for clogged pores → Moisturise with the Skin Barrier Moisturizing Cream → SPF50+ in the morning. Add the Propolis Light Cream or Centella Blemish Cream to spot-treat active breakouts. Avoid stacking too many actives at once.