Cos De BAHA Azelaic Acid 10% Serum
Cos De BAHA · Serum

Azelaic Acid 10% Serum

Korea ranking #49 serumUS stock

A no-frills serum delivering 10% azelaic acid, one of the most versatile ingredients for calming redness, easing breakouts, and fading the dark marks they leave behind. It comes from a plain-packaging brand that keeps its formulas focused and its prices low. A practical option for rosacea-prone, acne-prone, or uneven skin that wants a gentler active.

More detail

Azelaic acid at 10% does most of the work — it's antibacterial, helps normalize how skin cells turn over, calms inflammation, and interrupts excess pigment, so it addresses bumps, redness, and post-acne spots at once. It's supported by niacinamide for tone and barrier, plus soothing, hydrating additions like aloe, panthenol, and hyaluronic acid. The texture is a lightweight serum rather than the thick, sometimes gritty azelaic creams, so it layers cleanly. Use it after cleansing and toner, once a day to start — every other night if your skin is sensitive — and always follow with sunscreen in the morning. A little tingling early on is normal; the formula does include fragrant botanical extracts (eucalyptus, rosemary, thyme), so patch test if you're very reactive. Azelaic acid is also one of the few actives often considered compatible with pregnancy, though it's worth confirming with your doctor.

4.32,400 reviews
BEvidence grade
$16Best total · duties in
lightTexture · Serum
For: Sensitive · Oily · Combination · NormalAll tonesRedness / Rosacea-proneAcneDark spots (PIH)
Is this right for your skin? take the 60-second quiz and this box becomes a personal verdict.
Skin fit ×45%
Evidence ×35%76
Practicality ×20%50
Ingredient check⚠ 1 caution flag
Evidence checkGrade B
Grade BSolid transparency and consistent ratings; limited third-party clinical data (seed draft — verify before launch).
How grading works
Scored on clinicals · certifications · cross-platform rating consistency · transparency. Brands can't pay to change this.
What Korea says#49 serum
#49 serum · Korea ranking · Rank indicative — weekly verification pending
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Where to buybest total $16
RetailerPriceShip + dutyTotal
Amazon ✓ official
Official store — verify seller before launch
Accepts: Visa · MC · Amex · Discover · Amazon Pay · Affirm
$16$16BESTShop →
Olive Young Global ✓ official
Ships from Korea 7–14d · +15% duty
Accepts: Cards · PayPal · Apple Pay · Alipay+
$13$9.00$22Shop →

Totals include estimated import duty on Korea-shipped orders (15%, post–de minimis). Links open retailer search; exact product links are coming at launch. Payment methods indicative — verify at checkout.

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