---
product_id: 418100383
title: "Simple Smooth+ 10% Niacinamide Serum with Vitamin B3 & B5 30 ml"
brand: "simple"
price: "¥2484"
currency: JPY
in_stock: true
category: "Simple"
url: https://www.desertcart.jp/products/418100383-simple-smooth-10-niacinamide-serum-with-vitamin-b3-and-b5
store_origin: JP
region: Japan
---

# 1.5% Vegan Glycerin locks in moisture 1% Vitamin B5 for deep hydration 10% Niacinamide boosts cell turnover Simple Smooth+ 10% Niacinamide Serum with Vitamin B3 & B5 30 ml

**Brand:** simple
**Price:** ¥2484
**Availability:** ✅ In Stock

## Summary

> ✨ Unlock your skin’s natural glow—because flawless waits for no one!

## Quick Answers

- **What is this?** Simple Smooth+ 10% Niacinamide Serum with Vitamin B3 & B5 30 ml by simple
- **How much does it cost?** ¥2484 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/418100383-simple-smooth-10-niacinamide-serum-with-vitamin-b3-and-b5)

## Best For

- simple enthusiasts

## Why This Product

- Trusted simple brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Hydration Hero:** Vitamin B5 and vegan glycerin deliver instant and lasting moisture
- • **Mix & Match Magic:** Perfect solo or layered with your fave serums—just avoid vitamin C combos for max effect
- • **Glow Up in 14 Days:** Clinically proven smoother, more even skin tone in just 2 weeks
- • **Derm-Approved Formula:** Gentle, fragrance-free, and dermatologically tested for all skin types
- • **SkinTwin Science Power:** Advanced skin-mimicking tech that works with your biology for natural radiance

## Overview

Simple Smooth+ 10% Niacinamide Serum harnesses potent vitamin B3, hydrating vitamin B5, and vegan glycerin to visibly smooth skin and even tone within 2 weeks. Powered by patented SkinTwin science, this dermatologist-tested, fragrance-free serum boosts cell turnover, hydrates deeply, and improves elasticity for a radiant, velvety-soft complexion suitable for all skin types.

## Description

Product Description Simple Smooth+ 10% Niacinamide (Vitamin B3) Serum is a skin care solution designed to achieve visibly smoother, more even-toned skin in just 2 weeks. Powered by SkinTwin* science, this advanced skin-mimicking technology works with your skin's biology, mirroring its natural repair processes to improve skin texture and tone. Formulated with 10% niacinamide, our face serum promotes cell turnover** and helps restore your skin's natural, even tone. Complemented by 1% vitamin B5, it hydrates your skin for a softer, smoother feel, while 1.5% vegan glycerin protects against dryness to improve skin elasticity. Our niacinamide serum is proven to deliver results. Users reported visible improvements in skin radiance within just 2 weeks, and a refreshed and hydrated feel with every use. 90% agreed their skin appeared more glowing and felt velvety soft. It's your solution to achieving skin that feels and looks beautifully smooth and even. After using a cleanser, apply our face serum alone, or mix a few drops into your favourite moisturiser. Try cocktailing it with Simple Hydrate+ 3% Hyaluronic Acid + Vitamin B5 Serum. It's best not to combine niacinamide with vitamin C, as these two antioxidants play better when used separately. If you'd like to use both, we recommend applying our Glow+ 10% Vitamins C + E + F Serum in the morning and then using the niacinamide serum as part of your nighttime routine. *SkinTwin is trademarked. **Within the stratum corneum. Ingredients Aqua, Niacinamide, Propanediol, Caprylic/Capric Triglyceride, Glycerin, Panthenol, Tapioca Starch, Coco-Caprylate, Polyglyceryl-6 Distearate, Dicaprylyl Ether, Caprylyl Glycol, Helianthus Annuus Seed Oil, Sclerotium Gum, Phenoxyethanol, Citric Acid, Polyglyceryl-10 Stearate, Sodium Hydroxide, Pantolactone, Tocopherol. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Safety Warning For external use only Manufacturer Contact Information Unilever Dept ER, Wirral CH63 3JW UK See more

## Features

- Smoother, More Even Skin Tone in 2 Weeks: Simple Smooth+ 10% Niacinamide (Vitamin B3) Serum visibly smooths the skin and restores a more even skin tone in just 2 weeks
- Facial Serum Powered by SkinTwin* Science: Skin-mimicking technology that works with your skin’s biology for visibly smoother, more even-toned skin
- High-Performance Skin Care Ingredients: 10% niacinamide promotes cell turnover**, 1% vitamin B5 hydrates for softer skin and 1.5% vegan glycerin protects against dryness to improve skin elasticity
- Proven Results: The serum provides a visible improvement in radiance in just 2 weeks. 90% of users agree their skin looks more glowing and feels velvety soft
- Hydration & Smoothness: Our face serum offers instant hydration and a smoother skin feel from the very first use
- Thoughtfully Formulated: This niacinamide serum is dermatologically tested and crafted with skin-friendly ingredients for visibly smooth, more even-toned skin

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TL6R2PM |
| ASIN  | B09TL6R2PM |
| Active Ingredients | vitamin b3,niacinamide,hyaluronic acid,vitamin c |
| Benefits | Hydrating |
| Best Sellers Rank | 2,871 in Beauty ( See Top 100 in Beauty ) 69 in Make-up Removers 90 in Face Serums |
| Brand Name | Simple |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,434) |
| Customer reviews | 4.4 4.4 out of 5 stars (1,434) |
| Global Trade Identification Number | 08720181157134 |
| Guaranteed software updates until  | unknown |
| Item Form | Lotion |
| Item Volume | 30 Millilitres |
| Item Weight | 0.92 Grams |
| Item model number  | 68814800 |
| Language  | English |
| Manufacturer | Unilever |
| Manufacturer  | Unilever |
| Manufacturer Contact Information | Unilever Dept ER, Wirral CH63 3JW UK |
| Manufacturer Part Number | 68814800 |
| Material Features | Natural, Vegan |
| Material Type Free | Artificial Colour Free |
| Model Number | 68814800 |
| Number of Items | 1 |
| Product Dimensions  | 3.6 x 3.6 x 10 cm; 0.92 g |
| Recommended Uses For Product | Pores, Redness, Wrinkles |
| Scent Name | Fragrance Free |
| Skin Tone | All, Dry |
| Skin Type | All, Oily |
| Special Ingredients | hyaluronic_acid |
| Target Use Body Part | Face |
| Unit Count | 30.0 millilitre |

## Product Details

- **Active ingredients:** vitamin b3,niacinamide,hyaluronic acid,vitamin c
- **Brand:** Simple
- **Item form:** Lotion
- **Item weight:** 0.92 Grams
- **Material feature:** Natural, Vegan
- **Product benefits:** Hydrating
- **Scent:** Fragrance Free
- **Skin type:** All, Oily
- **Special ingredients:** hyaluronic_acid
- **Use for:** Face

## Images

![Simple Smooth+ 10% Niacinamide Serum with Vitamin B3 & B5 30 ml - Image 1](https://m.media-amazon.com/images/I/612hYUNQFzL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can Simple Smooth+ Serum be used daily?**
A: Yes. Simple Smooth+ Serum is gentle enough for everyday use and offers instant hydration from the first use. Apply once or twice a day onto cleansed face and neck, before or together with your moisturiser.

**Q: Is Simple Smooth+ Serum fragrance-free?**
A: Yes. Simple Smooth+ Serum contains no artificial perfume, colour or harsh chemicals that could upset your skin, reflecting our commitment to effective yet gentle, skin-friendly formulas.

**Q: Is Simple Smooth+ Serum non-comedogenic?**
A: Yes. Its lightweight, fast-absorbing formula won’t block pores, making it suitable for all skin types, including oily and sensitive skin. It also works to create a smoother, more even base under makeup.

**Q: How does Simple Smooth+ Serum work?**
A: Powered by Simple’s SkinTwin Science, it uses 10% niacinamide, 1% vitamin B5 and 1.5% vegan glycerin to visibly smooth skin and restore an even skin tone in just 2 weeks. It delivers clinically proven results from the first use.

**Q: How does Simple Smooth+ Serum fit into my skincare routine?**
A: It’s the ‘treat’ step in the Smooth+ routine. Cleanse with Simple Smooth+ Gel Cleanser, treat with Simple Smooth+ Serum, then moisturise with Simple Smooth+ Soothing Water Cream for visibly even, radiant skin.

## Frequently Bought Together

- Simple 10% Niacinamide (Vitamin B3) Booster Serum Serum Skin Care Product Suitable for all Skin Types for Even Skin Tone and Texture 30 ml
- Simple 3% Hyaluronic Acid + B5* Booster Serum Serum Skin Care Suitable for All Skin Types for Hydrated, Softer Skin 30 ml
- Simple 10% Vitamin C + E + F Booster Serum, Vitamin C serum for Face, Suitable for all Skin Types for Youthful, Glowing Skin 30 ml

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**Shop now:** [https://www.desertcart.jp/products/418100383-simple-smooth-10-niacinamide-serum-with-vitamin-b3-and-b5](https://www.desertcart.jp/products/418100383-simple-smooth-10-niacinamide-serum-with-vitamin-b3-and-b5)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-24*