--- product_id: 534912437 title: "numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz" brand: "numbuzin" price: "$36.30" currency: USD in_stock: true reviews_count: 13 category: "Numbuzin" url: https://www.desertcart.us/products/534912437-numbuzin-no-5-serum-glutathione-vitamin-concentrated-serum-1-01 store_origin: US region: United States of America --- # 5% Niacinamide brightens & evens skin tone Glutathione antioxidant boost 4% Tranexamic Acid for dark spot correction numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz **Brand:** numbuzin **Price:** $36.30 **Availability:** ✅ In Stock ## Summary > 🌟 Glow like you mean it — the serum that’s got everyone talking! ## Quick Answers - **What is this?** numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz by numbuzin - **How much does it cost?** $36.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/534912437-numbuzin-no-5-serum-glutathione-vitamin-concentrated-serum-1-01) ## Best For - numbuzin enthusiasts ## Why This Product - Trusted numbuzin brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Day Skin Harmony:** Alcohol & oil-free formula keeps skin balanced and comfortable from AM to PM. - • **Lightweight & Fast-Absorbing:** Glides on effortlessly with a breathable, non-greasy finish perfect for layering. - • **Universal Skin Compatibility:** Formulated for dry, oily, combination, and sensitive skin—your go-to serum for every skin type. - • **Power-Packed Brightening Blend:** Tranexamic Acid, Niacinamide & Glutathione team up to fade dark spots and reveal radiant skin. - • **K-Beauty Innovation at Your Fingertips:** Experience the cutting-edge Korean skincare ritual that’s trending globally. ## Overview numbuzin No.5 Vitamin Concentrated Serum is a 30ml powerhouse featuring 4% Tranexamic Acid, 5% Niacinamide, and Glutathione to target dark spots and uneven skin tone. This lightweight, alcohol- and oil-free formula absorbs quickly, making it ideal for all skin types and daily use. Backed by Korean skincare expertise, it delivers antioxidant protection and a radiant glow with every drop. ## Description desertcart.com: numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz | Dark Spot Care with Tranexamic Acid 4% & Niacinamide 5% for radiant-looking glow, Korean Skincare : Beauty & Personal Care Review: Awesome - I have been using this product consistently for several months now, and I can honestly say it has become a permanent part of my skincare routine. In fact, I order a new bottle every month because I don’t want to run out of it. One of the biggest reasons I keep repurchasing it is because I have seen noticeable improvements in my skin. After I started using this product, many people around me began commenting that my skin looked brighter, healthier, and more radiant. It is always nice when other people notice positive changes, and that gave me confidence that the product was truly making a difference. What I love most is how lightweight and easy it is to use. I typically apply it two to three times a day, depending on how often I wash my face. The product absorbs very quickly into the skin. I usually apply it and gently tap it into my skin, similar to the way many Korean skincare routines recommend. Within moments, it is absorbed and leaves my skin feeling comfortable and hydrated. Unlike some skincare products that leave behind a sticky, greasy, or heavy feeling, this one absorbs beautifully without any residue. My skin feels fresh and smooth after each application, which makes it easy to layer with other products in my routine. I started noticing visible results within about two weeks of regular use. My complexion appeared more even, my skin looked brighter, and overall it seemed healthier. I also use other products that target pigmentation and dark spots, and this product works exceptionally well alongside them. Rather than causing irritation or conflicts with my other skincare products, it complements them and fits seamlessly into my routine. Over the months, I have noticed a gradual improvement in my overall complexion. My skin looks more refreshed, radiant, and balanced than it did before I started using it. The consistency of the results is what has impressed me the most. It wasn’t just a temporary improvement during the first few weeks. The benefits have continued with regular use. Overall, I am extremely happy with this product and fully intend to continue using it. It absorbs quickly, feels comfortable on the skin, works well with other skincare products, and has noticeably improved the appearance of my skin over time. If you’re looking for a product that can easily fit into your daily skincare routine and help support a brighter, healthier-looking complexion, this one has been a great choice for me. Review: Very Good Skin Care Item - It is Good, it visibly improves the look of dark spots, hyperpigmentation, and uneven skin tone. I like it Very Much. I have used it carefully, slowly, and it has helped my skin improve and look good over time. The Skincare item does even out skin tone well and boosts some natural radiance in the skin. It offers some hydration. I like how it enhances skin texture, and effectively diminishes the appearance of some dark spots and discoloration. It is gentle and has Helped and Improved My Skin and Face Very Much. I like how it improves the look of face skin for a fresher, more better good looking appearance. It helps to improve the appearance of skin. It does well with to visibly reduce the look of dark spots and post-acne marks. It is pleasant, decent, satisfying, nice and effective. I would Recommend this Skin item. ## Features - [Daily Serum With TXA, Niacinamide & Glutathione] A multi-use daily serum packed with Tranexamic Acid 4%, Niacinamide 5%, Glutathione, Vitamin C, Panthenol and Ceramides—made for easy, everyday use in both morning and night routines. - [Multi-Ingredient Formula for Simple Layering] Brings several favorite skincare ingredients together in one bottle, giving you a convenient step that feels complete on its own yet blends smoothly into any routine. - [Lightweight, Fast-Absorbing Texture] A fluid, quick-absorbing texture that glides over the skin with ease, leaving a fresh, comfortable finish that works beautifully under any product. - [Alcohol-Free & Oil-Free Formula] Free of alcohol and oils for a fresh, breathable feel—ideal if you prefer a lightweight formula that sits comfortably on the skin without heaviness. - [Suitable for All Skin Types] Designed to work well for dry, oily, combination and sensitive skin. Use over the entire face or apply to specific areas depending on your preferred routine. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C61FD7P9 | | ASIN | B0C61FD7P9 | | Active Ingredients | niacinamide,panthenol | | Best Sellers Rank | #1,607 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #86 in Facial Serums | | Brand Name | numbuzin | | Customer Reviews | 4.4 4.4 out of 5 stars (5,561) | | Item Form | Drop | | Item Volume | 30 ml | | Item Weight | 102 g | | Item model number | NBZ-024 | | Manufacturer | BENOW Inc. | | Manufacturer | BENOW Inc. | | Manufacturer Part Number | NBZ-024 | | Material Features | Antioxidant | | Model Number | NBZ-024 | | Number of Items | 1 | | Product Benefits | Even Toning, Glow | | Product Dimensions | 3.94 x 1.97 x 0.79 inches; 3.6 ounces | | Recommended Uses For Product | Brightening,Provides Vitamins,Spread | | Scent Name | Aloe | | Skin Tone | All | | Skin Type | All | | Special Ingredients | Vitamin C, Vitamin E | | Target Use Body Part | Face | | UPC | 691266759780 | | UPC | 691266759780 | | Unit Count | 1.01 Fluid Ounces | ## Product Details - **Product Benefits:** Even Toning, Glow - **Scent:** Aloe - **Skin Type:** All - **Special Ingredients:** Vitamin C, Vitamin E - **Use for:** Face ## Images ![numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz - Image 1](https://m.media-amazon.com/images/I/61C4K4rOhtL.jpg) ![numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz - Image 2](https://m.media-amazon.com/images/I/71Bbx47w5BL.jpg) ![numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz - Image 3](https://m.media-amazon.com/images/I/61YaqI4V7VL.jpg) ![numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz - Image 4](https://m.media-amazon.com/images/I/71rQn+jDeOL.jpg) ![numbuzin No.5 Serum, Glutathione Vitamin Concentrated Serum 1.01 fl oz - Image 5](https://m.media-amazon.com/images/I/71xSim4xlbL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do iI have to shake it before use it?** A: I shook this product well the first time before using it. I did not shake everything before using it. I saw significant fading of my dark spots. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Awesome *by A***R on June 7, 2026* I have been using this product consistently for several months now, and I can honestly say it has become a permanent part of my skincare routine. In fact, I order a new bottle every month because I don’t want to run out of it. One of the biggest reasons I keep repurchasing it is because I have seen noticeable improvements in my skin. After I started using this product, many people around me began commenting that my skin looked brighter, healthier, and more radiant. It is always nice when other people notice positive changes, and that gave me confidence that the product was truly making a difference. What I love most is how lightweight and easy it is to use. I typically apply it two to three times a day, depending on how often I wash my face. The product absorbs very quickly into the skin. I usually apply it and gently tap it into my skin, similar to the way many Korean skincare routines recommend. Within moments, it is absorbed and leaves my skin feeling comfortable and hydrated. Unlike some skincare products that leave behind a sticky, greasy, or heavy feeling, this one absorbs beautifully without any residue. My skin feels fresh and smooth after each application, which makes it easy to layer with other products in my routine. I started noticing visible results within about two weeks of regular use. My complexion appeared more even, my skin looked brighter, and overall it seemed healthier. I also use other products that target pigmentation and dark spots, and this product works exceptionally well alongside them. Rather than causing irritation or conflicts with my other skincare products, it complements them and fits seamlessly into my routine. Over the months, I have noticed a gradual improvement in my overall complexion. My skin looks more refreshed, radiant, and balanced than it did before I started using it. The consistency of the results is what has impressed me the most. It wasn’t just a temporary improvement during the first few weeks. The benefits have continued with regular use. Overall, I am extremely happy with this product and fully intend to continue using it. It absorbs quickly, feels comfortable on the skin, works well with other skincare products, and has noticeably improved the appearance of my skin over time. If you’re looking for a product that can easily fit into your daily skincare routine and help support a brighter, healthier-looking complexion, this one has been a great choice for me. ### ⭐⭐⭐⭐⭐ Very Good Skin Care Item *by R***A on April 18, 2026* It is Good, it visibly improves the look of dark spots, hyperpigmentation, and uneven skin tone. I like it Very Much. I have used it carefully, slowly, and it has helped my skin improve and look good over time. The Skincare item does even out skin tone well and boosts some natural radiance in the skin. It offers some hydration. I like how it enhances skin texture, and effectively diminishes the appearance of some dark spots and discoloration. It is gentle and has Helped and Improved My Skin and Face Very Much. I like how it improves the look of face skin for a fresher, more better good looking appearance. It helps to improve the appearance of skin. It does well with to visibly reduce the look of dark spots and post-acne marks. It is pleasant, decent, satisfying, nice and effective. I would Recommend this Skin item. ### ⭐⭐⭐⭐⭐ Very good *by E***N on September 23, 2026* This serum doesn’t make my skin feel greasy and helps brighten it so much as well it has helped me with hyperpigmentation. ## Frequently Bought Together - numbuzin No.5 Serum | Tranexamic Acid 4%, Niacinamide 5%, Glutathione, Vitamin C | Vitamin Concentrated Serum | Hyperpigmentation| Suitable for Sensitive Skin, Korean Skincare | 1.01 fl. oz. - numbuzin No.5 Toner Pads | Vitamin-Niacinamide Concentrated Pad | Double-Sided | Glutathione, Niacinamide, PHA & LHA | Exfoliation, Hyperpigmentation Care | 70 Pads/180 ml - TOSOWOONG Arbutin 7% + Tranexamic Acid 4% Cream, 70,000ppm Arbutin, 40,000ppm TXA, Niacinamide, Glutathione, Dark Spots, Freckle, Blemishes, Pigmentation, Korean Skin Care, 50ml, 1.69 fl.oz. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/534912437-numbuzin-no-5-serum-glutathione-vitamin-concentrated-serum-1-01](https://www.desertcart.us/products/534912437-numbuzin-no-5-serum-glutathione-vitamin-concentrated-serum-1-01) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-16*