Product Information
The Numbuzin No.4 Ceramide AHA Glazed Skin Prep Serum (30ml) is a unique hybrid treatment designed to bridge the gap between chemical exfoliation and barrier repair. It is specifically formulated to create a "glazed skin" finish—smooth, hydrated, and reflective—making it an ideal primer for makeup or a smoothing treatment for textured skin.Unlike typical AHA serums that can be harsh, this "Skin Prep" formula uses a lower concentration of acids paired with a heavy dose of lipids to ensure exfoliation is gentle enough for daily use, even on sensitive skin.Key BenefitsGentle Resurfacing: Uses a 3% AHA + 3% PHA blend to dissolve dead skin cells and smooth rough patches without the redness or "stinging" often associated with stronger peels.Barrier Protection: Infused with 5 types of Ceramides that mimic the skin's natural lipids to lock in moisture and prevent irritation during the exfoliation process.Deep Hydration: Enriched with Panthenol (2%) and Hyaluronic Acid to plump the skin and provide long-lasting suppleness.Makeup Longevity: Clinically proven to refine skin texture and improve the adherence and appearance of foundation, preventing "cakeiness" on dry or flaky patches.Soothing & Brightening: Contains Niacinamide to refine pores and brighten dull spots while maintaining a calm complexion.Core Ingredients3% Glycolic Acid (AHA): Resurfaces the top layer of the skin for immediate smoothness and radiance.3% Gluconolactone (PHA): A larger-molecule acid that exfoliates more slowly and gently, acting as a humectant to draw moisture into the skin.5-Ceramide Complex: Essential for repairing a damaged skin barrier and preventing moisture loss.2% Panthenol: Deeply soothes and aids in skin recovery.Niacinamide: Helps control sebum and even out skin tone.How to UsePrep: Cleanse your face and apply your toner.Apply: Use one full dropper and spread it evenly across the face.Absorb: Gently pat until the milky, silky fluid is fully absorbed.Frequency: Can be used morning or night.Tip: Use it in the morning as a "pre-makeup" step to achieve that smooth, glowing base.Sun Protection: Always apply SPF 30+ during the day when using any product containing AHA.Comparison: Numbuzin No.4 vs. Anua Azelaic AcidIf you are choosing between this and the Anua Azelaic Acid 10 we discussed:FeatureNumbuzin No.4 Glazed SerumAnua Azelaic Acid 10 SerumPrimary GoalSmooth texture & "Glazed" glowRedness & Acne-prone calmingKey ActiveAHA + PHA (6% total)Azelaic Acid (10%)Barrier SupportHigh (5 Types of Ceramides)Moderate (7-Cica Complex)TextureMilky, silky prep serumWatery, cooling green liquidBest ForDry, flaky, or textured skinRedness, Rosacea, & oily acneDelivery & Returns
We offer a variety of delivery options to suit your needs. For complete details on our delivery services and rates, please check out our Delivery Information page.
We hope you’re delighted with every purchase, but if for any reason you’re not, you can return items within 30 days of receipt. To learn more about our easy returns process, visit our Returns Information page.







