[ numbuzin ] No.4 Ceramide AHA Glazed Skin Prep Serum 30ml

RECOMMENDED FOR: Dry or dehydrated-oily skin with flaky texture, rough or uneven skin, sensitive skin wanting better makeup grip

PERFECT FOR: When flaky texture and rough skin are on your mind, and you want smooth, glazed results without irritation

AM: If using as a makeup prep serum, always pair with sunscreen.

PM: Apply as your first step after cleansing.

A milky, silky water texture that absorbs with a smooth glow and no stickiness. Free from synthetic fragrance.

3% AHA (Glycolic Acid), 3% PHA (Gluconolactone), 5-Ceramide Complex (NP, NS, AP, AS, EOP), Niacinamide & Panthenol

- 3% AHA & 3% PHA: gently dissolve rough dead skin without irritation for smooth, glazed-looking texture
- 5-Ceramide Complex & Panthenol: strengthen the barrier after exfoliation to block moisture loss
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Gentle Enough for Daily Exfoliation, Strong Enough to Show Results

numbuzin's No.4 Ceramide AHA Glazed Skin Prep Serum. 3% AHA and 3% PHA gently dissolve rough dead skin without irritation for smooth, glazed-looking texture. A 5-ceramide complex and panthenol strengthen the barrier after exfoliation to block moisture loss.

A glazed-skin serum where 3% AHA/PHA refine texture and a 5-ceramide complex fills in the barrier.

PICK NO.3 RATING
SENSITIVITY: 3/5

WHY WE PICKED IT: Verifying both exfoliation and barrier reinforcement in the same clinical trial shows real balance, which made this an easy pick.

CLINICAL RESULTS: Verified a 51% reduction in dead skin buildup, 16% texture improvement, and 17% barrier reinforcement after 2 weeks of use; passed low-irritancy testing.

SAFETY NOTES: Sunscreen is essential during daytime use given the AHA content, and store away from direct sunlight.

GLOBAL SALES: A flagship serum stocked on the brand's global store and major US retail channels.

AWARDS: Not disclosed.

PICKER'S COMMENT: "It smooths skin without any redness, and using it as a prep serum before makeup makes a real difference to how my base sits."

USAGE DURATION: Not disclosed (30ml size).

Water, Glycerin, Glycolic Acid (AHA, 3%), Butylene Glycol, Gluconolactone (PHA, 3%), Betaine, Niacinamide, Panthenol, Ceramide NP, Ceramide NS, Ceramide AP, Ceramide AS, Ceramide EOP, Cholesterol, Phytosphingosine (30ml)

Q. Isn't AHA irritating?
A. A 2-week trial verified both a 51% reduction in dead skin and 17% stronger barrier function, so exfoliation and barrier care are handled together.

Q. Can I use it during the day?
A. Given the AHA content, always pair daytime use with sunscreen.

Q. Can I use it before makeup?
A. Yes, using it as a prep serum improves how your base sits.

Q. How many ceramide types does it have?
A. Five - NP, NS, AP, AS, and EOP.

Q. Who is this best for?
A. Dry or dehydrated-oily skin with flaky texture, rough or uneven skin, skin wanting better makeup grip

Q. Is there anyone who should skip this one?
A. If you're already used to stronger acid exfoliants, this 3% concentration may feel gentle by comparison.