numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum is a milky exfoliating serum that smooths rough texture and boosts glow while helping protect the skin barrier. It combines 3% AHA (glycolic acid) + 3% PHA (gluconolactone) for gentle resurfacing, and a 5-ceramide blend with panthenol and niacinamide to keep skin hydrated, calm, and “glazed-skin” smooth.

Benefits:

• Smoother texture: Helps lift dull, flaky buildup for a more even surface.
• Glowy skin prep: Creates a soft, polished finish that helps makeup sit better.
• Gentle exfoliation: AHA + PHA refine skin without the harsh scrub feel.
• Barrier support: 5 ceramides + cholesterol + phytosphingosine help strengthen the moisture barrier.
• Hydration boost: Panthenol, beta-glucan, urea and hyaluronic acids help reduce dryness and tightness.

Skin Types: All skin types (especially dry, flaky, sensitive, textured skin)
Best For: Rough texture • Flakiness • Dullness • Uneven makeup wear • Dehydration

How to Use:

1. Apply on clean skin (after cleansing, before moisturizer).
2. Use one dropper (or a moderate amount) and gently pat to absorb.
3. Follow with a moisturizer.
4. Use sunscreen every morning (important when using acids).

Frequency tip: If you’re new to acids or sensitive, start 2–3 nights per week, then increase as tolerated.

Key Ingredients:

• Glycolic Acid (3% AHA) – smooths texture and supports a brighter look.
• Gluconolactone (3% PHA) – gentle exfoliation + hydration support.
• 5 Ceramides + Cholesterol + Phytosphingosine – barrier-strengthening lipid complex.
• Panthenol + Beta-Glucan – soothing and comfort for stressed skin.
• Niacinamide – supports a more even tone and balanced look.
• Urea + Hyaluronic Acid Complex – hydration and softening for dry, rough areas.

Ingredients:

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

FAQ:

Q: Can I use this serum every day?
A: Many skin types can, but it contains 6% total acids (AHA+PHA). If you’re sensitive, start 2–3 nights/week and increase slowly.

Q: Can I use it in the morning?
A: You can, but SPF is required. Most people prefer using exfoliating serums at night.

Q: Can I use it with retinol/retinal or strong exfoliating pads?
A: Best to alternate (don’t stack in the same routine), to reduce the risk of dryness and irritation.

Q: Will it sting?
A: Mild tingling can happen (especially on dry areas). If you feel burning, strong redness, or peeling, use less often or stop and focus on barrier care.

Q: Is it fragrance-free?
A: Yes, this formula is described as fragrance-free.

Q: What does “glazed skin prep” mean?
A: It means the serum helps create a smoother, more hydrated surface so skin looks more even and makeup applies more cleanly.