---
product_id: 615925548
title: "No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz"
brand: "numbuzin"
price: "$38.95"
currency: USD
in_stock: true
reviews_count: 13
category: "Numbuzin"
url: https://www.desertcart.us/products/615925548-no-5-vitamin-concentrated-serum-dark-spot-care-glutathione-vitamin
store_origin: US
region: United States of America
---

# Glutathione antioxidant power 5% Niacinamide for brightening & texture 4% Tranexamic Acid for dark spot correction No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz

**Brand:** numbuzin
**Price:** $38.95
**Availability:** ✅ In Stock

## Summary

> ✨ Glow Up Your Routine with Science-Backed Brilliance!

## Quick Answers

- **What is this?** No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz by numbuzin
- **How much does it cost?** $38.95 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/615925548-no-5-vitamin-concentrated-serum-dark-spot-care-glutathione-vitamin)

## 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 Radiance Booster:** Use morning and night to unlock a luminous, healthy glow that turns heads.
- • **Clean & Breathable Formula:** Alcohol- and oil-free for a fresh, non-greasy feel that suits all skin types, even sensitive.
- • **Lightweight & Fast-Absorbing:** Fluid texture glides on effortlessly, layering seamlessly under your daily skincare or makeup.
- • **Power-Packed Brightening Blend:** Tranexamic Acid, Niacinamide & Glutathione team up to visibly fade dark spots and even skin tone.
- • **K-Beauty Innovation in a Bottle:** Crafted in Korea with vegan ingredients, trusted by thousands for proven brightening results.

## Overview

numbuzin No.5 Vitamin Concentrated Serum is a 30ml Korean skincare essential formulated with 4% Tranexamic Acid, 5% Niacinamide, and Glutathione. This lightweight, alcohol- and oil-free serum targets dark spots and uneven skin tone while delivering antioxidant protection and hydration. Suitable for all skin types, it absorbs quickly and layers easily, making it a versatile daily brightening solution favored by over 5,000 reviewers.

## Description

No.9 Line for Anti-Aging

Review: Vitamin C - This really helps my skin to look brighter and even. Mild on the skin as well
Review: It works - Improvement is visible within few weeks. I was sceptical about buying it. However I guess I made right decision.

## 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 |
| Active Ingredients | niacinamide,panthenol |
| Benefits | Antioxidant, Brightening |
| Best Sellers Rank | 5,124 in Beauty ( See Top 100 in Beauty ) 121 in Face Serums |
| Brand | numbuzin |
| Brand Name | numbuzin |
| Country Of Origin | Korea, Republic of |
| Customer Reviews | 4.4 out of 5 stars 5,081 Reviews |
| Item Form | Drop |
| Item Volume | 30 Millilitres |
| Item Weight | 102 Grams |
| Manufacturer | BENOW Inc. |
| Manufacturer Part Number | NBZ-024 |
| Material Features | Vegan |
| Model Number | NBZ-024 |
| Number of Items | 1 |
| Product benefits | Antioxidant, Brightening |
| Recommended Uses For Product | Brightening,Provides Vitamins,Spread |
| Scent | Aloe |
| Scent Name | Aloe |
| Skin Tone | All |
| Skin Type | All |
| Skin type | All |
| Special Ingredients | Antioxidants, vitamin_b5, vitamin_c |
| Special ingredients | Antioxidants, vitamin_b5, vitamin_c |
| Target Use Body Part | Face |
| UPC | 691266759780 |
| Unit Count | 30.0 millilitre |
| Use for | Face |

## Product Details

- **Active ingredients:** niacinamide,panthenol
- **Brand:** numbuzin
- **Item form:** Drop
- **Item weight:** 40 Grams
- **Material feature:** Vegan
- **Product benefits:** Antioxidant, Brightening
- **Scent:** Aloe
- **Skin type:** Sensitive
- **Special ingredients:** Antioxidants, vitamin_b5, vitamin_c
- **Use for:** Face

## Images

![No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz - Image 1](https://m.media-amazon.com/images/I/61VGNgDfj+L.jpg)
![No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz - Image 2](https://m.media-amazon.com/images/I/71q+wRICWbL.jpg)
![No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz - Image 3](https://m.media-amazon.com/images/I/61SBP9+H9GL.jpg)
![No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz - Image 4](https://m.media-amazon.com/images/I/71afGHrCHtL.jpg)
![No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz - Image 5](https://m.media-amazon.com/images/I/71Vi5QwVVrL.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

### ⭐⭐⭐⭐⭐ Vitamin C
*by L***A on 3 July 2026*

This really helps my skin to look brighter and even. Mild on the skin as well

### ⭐⭐⭐⭐⭐ It works
*by S***K on 29 June 2026*

Improvement is visible within few weeks. I was sceptical about buying it. However I guess I made right decision.

### ⭐⭐⭐⭐ Good serum, hasn’t broken me out, slow results
*by B***L on 10 December 2025*

So far so good, nice consistency, not too runny or sticky. Cloudy serum which has helped to brighten skin over the last 2 weeks. Works well with microneedling, didn’t cause too much irritation. Also hasn’t broken me out or caused any reactions even though I have acne-prone skin. 4 stars because results are very slow…. Hasn’t brightened as much as I would’ve hoped over the last 2 weeks, will see if using for a month makes a difference.

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-11*