---
product_id: 534912437
title: "numbuzin No.5 Vitamin Concentrated Serum, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, Glutathione + Vitamin C Complex for a Radiant-Looking Glow 1.01 fl oz"
brand: "numbuzin"
price: "€ 26.31"
currency: EUR
in_stock: true
reviews_count: 9
category: "Numbuzin"
url: https://www.desertcart.ie/products/534912437-numbuzin-no-5-vitamin-concentrated-serum-glutathione-and-vitamin-serum
store_origin: IE
region: Ireland
---

# 5% Niacinamide evens skin tone Glutathione + Vitamin C complex 4% Tranexamic Acid for brightening numbuzin No.5 Vitamin Concentrated Serum, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, Glutathione + Vitamin C Complex for a Radiant-Looking Glow 1.01 fl oz

**Brand:** numbuzin
**Price:** € 26.31
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your skin’s glow with science-backed brilliance! ✨

## Quick Answers

- **What is this?** numbuzin No.5 Vitamin Concentrated Serum, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, Glutathione + Vitamin C Complex for a Radiant-Looking Glow 1.01 fl oz by numbuzin
- **How much does it cost?** € 26.31 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/534912437-numbuzin-no-5-vitamin-concentrated-serum-glutathione-and-vitamin-serum)

## 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

- • **Daily Glow Ritual:** Use morning and night for steady, visible improvement in skin radiance and texture.
- • **Multi-Active Formula:** Combines Tranexamic Acid, Niacinamide, Glutathione & Vitamin C for comprehensive skin clarity.
- • **All Skin Types Friendly:** Alcohol & oil-free formula designed to hydrate and brighten dry, oily, combination, and sensitive skin.
- • **Lightweight & Fast Absorbing:** Non-sticky, breathable serum that layers seamlessly under any skincare routine.
- • **Gentle Yet Effective Brightening:** Fades dark spots progressively without irritation—perfect for sensitive skin.

## Overview

The numbuzin No.5 Vitamin Concentrated Serum is a Korean skincare powerhouse blending 4% Tranexamic Acid, 5% Niacinamide, Glutathione, and Vitamin C complex in a lightweight, fast-absorbing formula. Designed for daily use on all skin types, it gently brightens, evens skin tone, and hydrates without irritation or heaviness, making it an essential step for a radiant, healthy complexion.

## Description

desertcart.com: numbuzin No.5 Vitamin Concentrated Serum, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, Glutathione + Vitamin C Complex for a Radiant-Looking Glow 1.01 fl oz : Beauty & Personal Care

Review: Right Ingredients, Gentle but SLOW FADING over 3+ months - 3-MONTH RESULTS (2x day): Slight fading of deep dark acne scars and age spots. Evens out skin tone. Gentle and not irritating. I am guessing this will take 6 to 9 months for deeper scars to fade. The pamphlet on Yesstyle.com shows 9.65% improvement in Blemishes after 4 weeks and 18.9% for even skin tone (this means expect slow steady results). They recommend also using the toner pad for faster results (165% improvement) but the combo irritated my skin. Overall, I like that it is gentle and will continue using it, right after the Toner. KEY INGREDIENTS: Contains the right chemicals known to fade dark spots like Glutathione, 4% Tranexamic Acid, 5% Niacinamide (both suppresses melanin), Alpha-Arbutin, Vit C, 3-0-Ethyl Ascorbic Acid, Tumeric etc. TEXTURE: Light serum, not sticky, absorbs quickly after Toner. Tap face gently for a few seconds after applying to help the skin absorb quicker before adding the next product (tip from korean skincare companies that works). ACNE PREVENTION TIPS: Best way to see improvement of skin is to keep the pores clear and acne from re-surfacing. I have not had a single breakout in 3 months using this routine. Also changed my skin type from Oily Combo to Normal. STEP 1 (2x day) - Use SEBUM CONTROL TONER to regulate skin oil production (I use NUMBUZIN No. 1 blue bottle) STEP 2 (2x day) - Use ANTIBACTERIAL SERUM to reduce inflammation (I use Beauty of Joseon Glow Serum w/60% propolis, Tea Tree) STEP 3 (2x week) - EXFOLIATE to keep pores clear, as clogged pores breed acne. I use Beauty of Joseon Ground Rice and Honey mud mask. Leave on face and neck for 15 minutes; this is a very gentle product. STEP 4 (Optional) - EAT food that aide the digestive system and help prevent acne like Yogurt, Kimchi and Sauerkraut (eat small amounts 2-3 times a week). I hope these tips are helpful to everyone.
Review: Very gentle brightening serum with modest results - I have sensitive, dry skin that is prone to hyperpigmentation from the sun. I've been using this serum for about two months now so I feel confident discussing what it can (and can't) do for my skin. The serum is very hydrating and gentle, and I was surprised to find it NEVER irritated my skin - even when my skin barrier was compromised and I was dealing with irritation from another product. That alone is enough for me to be impressed! It's also got a very rich, gorgeous texture. I'd say it's on the thicker side, and has a lot of glide to it as you apply it across your face. I find it to be hydrating and moisturizing, but because it's so rich it does take a second for it to sink in. I usually wait about 30 seconds before it dries down completely. Something I also appreciate is how dewy it makes my skin. Over the past two months I've noticed some modest but definite brightening from the serum. My dark spots have faded a bit and my skin is more plump and smooth. I notice less redness and irritation around my nose as well. But you shouldn't expect this to work miracles - this serum seems to work best as a gentle, progressive brightener rather than an intense active. It's perfect for someone like me who wants to benefits of a brighter skin tone without the irritation of harsher actives. This is very easy to integrate into almost any skincare routine, but here is a breakdown of who I think this serum is good for based on my own personal experience with it: This is for you if: -If you deal with hyperpigmentation from the sun or post-acne marks -If you want a brighter complexion but don't want to use harsh actives -If you use other more intense actives (AHAs, Retinol, etc.) and you want a little "boost" -If you have dry and dehydrated skin and need a serum that will help hydrate and moisturize This is NOT for you if: -You expect this to make a drastic difference in your dark spots -You have very oil or acne prone skin -You are looking for a vitamin C serum

## 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 |
| Best Sellers Rank | #4,149 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #131 in Facial Serums |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,461) |
| Item model number  | NBZ-024 |
| Manufacturer  | BENOW Inc. |
| UPC  | 691266759780 |

## 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 Vitamin Concentrated Serum, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, Glutathione + Vitamin C Complex for a Radiant-Looking Glow 1.01 fl oz - Image 1](https://m.media-amazon.com/images/I/61a4viHJNQL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Right Ingredients, Gentle but SLOW FADING over 3+ months
*by S***L on June 28, 2025*

3-MONTH RESULTS (2x day): Slight fading of deep dark acne scars and age spots. Evens out skin tone. Gentle and not irritating. I am guessing this will take 6 to 9 months for deeper scars to fade. The pamphlet on Yesstyle.com shows 9.65% improvement in Blemishes after 4 weeks and 18.9% for even skin tone (this means expect slow steady results). They recommend also using the toner pad for faster results (165% improvement) but the combo irritated my skin. Overall, I like that it is gentle and will continue using it, right after the Toner. KEY INGREDIENTS: Contains the right chemicals known to fade dark spots like Glutathione, 4% Tranexamic Acid, 5% Niacinamide (both suppresses melanin), Alpha-Arbutin, Vit C, 3-0-Ethyl Ascorbic Acid, Tumeric etc. TEXTURE: Light serum, not sticky, absorbs quickly after Toner. Tap face gently for a few seconds after applying to help the skin absorb quicker before adding the next product (tip from korean skincare companies that works). ACNE PREVENTION TIPS: Best way to see improvement of skin is to keep the pores clear and acne from re-surfacing. I have not had a single breakout in 3 months using this routine. Also changed my skin type from Oily Combo to Normal. STEP 1 (2x day) - Use SEBUM CONTROL TONER to regulate skin oil production (I use NUMBUZIN No. 1 blue bottle) STEP 2 (2x day) - Use ANTIBACTERIAL SERUM to reduce inflammation (I use Beauty of Joseon Glow Serum w/60% propolis, Tea Tree) STEP 3 (2x week) - EXFOLIATE to keep pores clear, as clogged pores breed acne. I use Beauty of Joseon Ground Rice and Honey mud mask. Leave on face and neck for 15 minutes; this is a very gentle product. STEP 4 (Optional) - EAT food that aide the digestive system and help prevent acne like Yogurt, Kimchi and Sauerkraut (eat small amounts 2-3 times a week). I hope these tips are helpful to everyone.

### ⭐⭐⭐⭐⭐ Very gentle brightening serum with modest results
*by J***N on March 19, 2024*

I have sensitive, dry skin that is prone to hyperpigmentation from the sun. I've been using this serum for about two months now so I feel confident discussing what it can (and can't) do for my skin. The serum is very hydrating and gentle, and I was surprised to find it NEVER irritated my skin - even when my skin barrier was compromised and I was dealing with irritation from another product. That alone is enough for me to be impressed! It's also got a very rich, gorgeous texture. I'd say it's on the thicker side, and has a lot of glide to it as you apply it across your face. I find it to be hydrating and moisturizing, but because it's so rich it does take a second for it to sink in. I usually wait about 30 seconds before it dries down completely. Something I also appreciate is how dewy it makes my skin. Over the past two months I've noticed some modest but definite brightening from the serum. My dark spots have faded a bit and my skin is more plump and smooth. I notice less redness and irritation around my nose as well. But you shouldn't expect this to work miracles - this serum seems to work best as a gentle, progressive brightener rather than an intense active. It's perfect for someone like me who wants to benefits of a brighter skin tone without the irritation of harsher actives. This is very easy to integrate into almost any skincare routine, but here is a breakdown of who I think this serum is good for based on my own personal experience with it: This is for you if: -If you deal with hyperpigmentation from the sun or post-acne marks -If you want a brighter complexion but don't want to use harsh actives -If you use other more intense actives (AHAs, Retinol, etc.) and you want a little "boost" -If you have dry and dehydrated skin and need a serum that will help hydrate and moisturize This is NOT for you if: -You expect this to make a drastic difference in your dark spots -You have very oil or acne prone skin -You are looking for a vitamin C serum

### ⭐⭐⭐⭐⭐ Great product!!!
*by N***T on November 19, 2025*

Best oil so far! After consistent use, I’ve noticed a healthier glow and improved texture. I’ve been using the Numbuzin No.5 Serum and I’m really impressed with the results. It leaves my skin looking brighter, smoother, and more hydrated. The texture is lightweight and absorbs quickly. It’s a 10/10 It leaves beautiful glow on my face.

## 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.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-27*