Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum 3% AHA + 3% PHA (30ml)

$26.00 $22.00
-16% OFF
Shipping calculated at checkout.
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3% AHA + 3% PHA — the glow step, with the hydration built in.

Exfoliation is what turns dull, rough, congested skin smooth and reflective. The problem is that most acid serums leave you tight and stripped on the way there. This one is built so that does not happen.

Glycolic acid at 3.01% is the smallest and best-studied AHA, working on the surface to lift away the dead, dull cells that flatten your complexion. Gluconolactone at 3% is a PHA — a larger, gentler molecule that exfoliates more slowly and holds water at the same time.

Around them sits a serious hydration system: glycerin second in the formula, five forms of hyaluronic acid, urea, beta-glucan, betaine, 2% panthenol and niacinamide, plus ceramides and phytosphingosine for barrier comfort.

That is why it finishes glazed instead of tight. Skin looks smoother and catches the light the next morning.

Fragrance-free.

Key ingredients

  • Glycolic Acid 3.01% (AHA) — smooths texture, brightens dullness
  • Gluconolactone 3% (PHA) — gentle exfoliation plus hydration
  • Panthenol 2% + Niacinamide — soothing, tone and barrier support
  • 5 forms of Hyaluronic Acid + Urea + Beta-Glucan — layered humectants
  • Ceramides + Cholesterol + Phytosphingosine — barrier lipids

How to use

At night, after cleansing and toner, apply 2–3 drops to dry skin and follow with moisturizer.

Start with 2 nights a week and build up from there. With 6% total acid, two to three nights weekly is where most people land and stay — more frequent is not better.

Wear sunscreen every morning.

Best for

Dull, rough or congested skin. Uneven texture. Anyone chasing that smooth, reflective "glazed" finish. Give it 4–8 weeks.

Good to know

  • Sunburn Alert: this product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards.
  • Do not layer with other exfoliating acids or a retinoid on the same night — alternate instead.
  • Patch test before first use. Avoid the immediate eye area. External use only.

Full INCI

Water, Glycerin, Glycolic Acid (3.01%), Butylene Glycol, Gluconolactone (3%), Betaine, Dipropylene Glycol, Niacinamide, Panthenol (2%), Pentylene Glycol, Sodium Hydroxide, Sphingomonas Ferment Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Diphenyl Dimethicone, Triethylhexanoin, Hydroxyethyl Urea, Hydroxyethylcellulose, Polyglyceryl-10 Laurate, Hydrogenated Lecithin, Caprylic/Capric Triglyceride, Ethylhexylglycerin, 1,2-Hexanediol, Propanediol, Urea (0.05%), Adenosine, Sodium Hyaluronate Crosspolymer, Hydrolyzed Glycosaminoglycans, Ceramide NP, Benzyl Glycol, Beta-Glucan, Tocopherol, Stearic Acid, Ceramide NS, Cholesterol, Phytosphingosine, Ceramide AP, Ceramide AS, Ceramide EOP, Cetearyl Alcohol

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Quantity
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Product Details

3% AHA + 3% PHA — the glow step, with the hydration built in.

Exfoliation is what turns dull, rough, congested skin smooth and reflective. The problem is that most acid serums leave you tight and stripped on the way there. This one is built so that does not happen.

Glycolic acid at 3.01% is the smallest and best-studied AHA, working on the surface to lift away the dead, dull cells that flatten your complexion. Gluconolactone at 3% is a PHA — a larger, gentler molecule that exfoliates more slowly and holds water at the same time.

Around them sits a serious hydration system: glycerin second in the formula, five forms of hyaluronic acid, urea, beta-glucan, betaine, 2% panthenol and niacinamide, plus ceramides and phytosphingosine for barrier comfort.

That is why it finishes glazed instead of tight. Skin looks smoother and catches the light the next morning.

Fragrance-free.

Key ingredients

  • Glycolic Acid 3.01% (AHA) — smooths texture, brightens dullness
  • Gluconolactone 3% (PHA) — gentle exfoliation plus hydration
  • Panthenol 2% + Niacinamide — soothing, tone and barrier support
  • 5 forms of Hyaluronic Acid + Urea + Beta-Glucan — layered humectants
  • Ceramides + Cholesterol + Phytosphingosine — barrier lipids

How to use

At night, after cleansing and toner, apply 2–3 drops to dry skin and follow with moisturizer.

Start with 2 nights a week and build up from there. With 6% total acid, two to three nights weekly is where most people land and stay — more frequent is not better.

Wear sunscreen every morning.

Best for

Dull, rough or congested skin. Uneven texture. Anyone chasing that smooth, reflective "glazed" finish. Give it 4–8 weeks.

Good to know

  • Sunburn Alert: this product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn. Use a sunscreen, wear protective clothing, and limit sun exposure while using this product and for a week afterwards.
  • Do not layer with other exfoliating acids or a retinoid on the same night — alternate instead.
  • Patch test before first use. Avoid the immediate eye area. External use only.

Full INCI

Water, Glycerin, Glycolic Acid (3.01%), Butylene Glycol, Gluconolactone (3%), Betaine, Dipropylene Glycol, Niacinamide, Panthenol (2%), Pentylene Glycol, Sodium Hydroxide, Sphingomonas Ferment Extract, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Diphenyl Dimethicone, Triethylhexanoin, Hydroxyethyl Urea, Hydroxyethylcellulose, Polyglyceryl-10 Laurate, Hydrogenated Lecithin, Caprylic/Capric Triglyceride, Ethylhexylglycerin, 1,2-Hexanediol, Propanediol, Urea (0.05%), Adenosine, Sodium Hyaluronate Crosspolymer, Hydrolyzed Glycosaminoglycans, Ceramide NP, Benzyl Glycol, Beta-Glucan, Tocopherol, Stearic Acid, Ceramide NS, Cholesterol, Phytosphingosine, Ceramide AP, Ceramide AS, Ceramide EOP, Cetearyl Alcohol

Shipping & Returns

Free shippingon U.S. orders over $80. Orders are processed within 1–2 business days. Returns are accepted within 30 days for unopened products. Please see our Shipping Policy for full details.

Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum 3% AHA + 3% PHA (30ml)

Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum 3% AHA + 3% PHA (30ml)

$26.00 $22.00
-16% OFF