Niacinamide Serum bottle on a shelf
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Ingredients in Niacinamide Serum
Cosmetic dropper with Niacinamide Serum being applied to skin, accompanied by usage instructions.
Before and after comparison of a person's face with acne on the left and clear skin on the right.
Model holding a bottle of Niacinamide Serum
Model applying Niacinamide Serum to her face

Niacinamide Serum | The INKEY List

Helps visibly reduce excess oil, blemishes and redness

4.6
Rated 4.6 out of 5 stars
4.6 Stars (747 Reviews)
$10.50 / 30ml

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What you get: A lightweight, hard-working serum for glowing skin. Powered by Niacinamide for calmer and more even looking complexion. 

Why it works: 10% Niacinamide reduces the appearances of excess oil, blemishes and redness. Hyaluronic Acid hydrates and soothes skin.

How it feels: Lightweight and layers easily with skincare, spf and makeup.

When to use: Use AM/PM, after cleansing and applying your hydrator. Follow with moisturizer, and SPF in the AM.

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Awards & Features

Cosmopolitan Award
Popsugar feature
Glamour Feature

Shipping info

Standard tracked shipping

  • $5.95 or FREE on your first order & orders over $35
  • (2-5 business days*)

Express tracked shipping

  • $15
  • (2-3 business days*, when ordered before 3pm EST)

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Compare with...

This product

Have you tried?

This product

Niacinamide Serum

Niacinamide Serum

  • •Reduces excess oil, blemishes and redness
  • •10% Niacinamide.
  • •For normal to oily skin with uneven skin tone

or

Have you tried?

20% Niacinamide Serum

20% Niacinamide Serum

  • •Balances excess oil
  • •20% Niacinamide
  • •For blemish prone skin with uneven skin texture

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  • Before and after comparison
    Zaklina uses Fulvic Acid Cleanser with Niacinamide Serum, Tranexamic Acid Serum and Vitamin BCE Moisturizer. “You took my skin (and face) to another level! Thank you INKEY List.”

    Zaklina

  • Before and after comparison
    "This is after just a couple of months using The INKEY List... I couldn't not show you. I had tried everything before and nothing ever helped!"

    Tina C

  • Before and after comparison
    Aysu started using Niacinamide Serum in her routine to improve her skin. After 2 months of use, her redness and breakouts have reduced.

    Aysu

  • Before and after comparison
    Mia is a loyal INKEY customer, using Salicylic Acid Cleanser in her routine along with Succinic Acid Treatment, Mandelic Acid Treatment, Retinol Serum and Niacinamide Serum.

    Mia M

  • Before and after comparison
    Shannon shared her myINKEY skin journey with her TikTok followers. She used Omega Water Cream AM and PM to improve her skin barrier, alongside Beta Hydroxy Acid Serum, Niacinamide Serum, Salicylic Acid Cleanser and Succinic Acid Treatment to tackle her breakouts.

    Shannon

  • Before and after comparison
    'I’ve always found it hard to find a routine to manage my dry but acne prone skin. These products helped reduce my inflammation, whilst also keeping my skin really hydrated and glowing.' @ charlotterowe26

    Charlotte

4.6
Rated 4.6 out of 5 stars
Based on 747 reviews
Total 5 star reviews: 551 Total 4 star reviews: 126 Total 3 star reviews: 38 Total 2 star reviews: 11 Total 1 star reviews: 21
Reviews Summary
Customers say this serum has a light, silky texture that absorbs well into the skin. Many users report reduced oiliness, especially in the T-zone area. The product receives praise for minimizing the appearance of pores and evening out skin texture. Long-term users mention consistent results with regular use, with many on their third or fourth bottle. While most find it gentle, a few note it didn't suit their skin type. Common feedback includes its effectiveness for combination skin types and its non-sticky formula. Reviews highlight its compatibility with other skincare products.
747 reviews
  • Matic K.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    Age Range 25 - 34
    Skin Type Oily
    Skin Concerns Breakouts, Oiliness, Blackheads, Under Eye Circles, Texture
    Rated 3 out of 5 stars
    1 week ago
    So far, no results

    So far, no results. will see how it if after another month of usage

  • Libby
    Verified Reviewer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Redness, Texture
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    2 weeks ago
    Super effective & lightweight!

    Great for my sensitive skin- other niacinamide serums I've tried have had added products that irritated my skin, but this was perfect. No weird residue left and is super lightweight and feels great on the skin. Saw results after 2-3 days of use.

  • Emily A.
    Verified Buyer
    Reviewing
    Niacinamide Serum Duo
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Trusty

    Trusty & reliable.