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2 Niacinamide Serums on 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 Duo

Helps visibly reduce excess oil, blemishes and redness

4.6
Rated 4.6 out of 5 stars
4.6 Stars (760 Reviews)
$16.80 $21.00 / 2 full-size products

20% off end of year sale! Exclusions apply.

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.


This Duo contains x2 Niacinamide Serum (30ml)

Suitable for:

  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Awards & Features

  • Cosmopolitan Award
  • Popsugar feature
  • Glamour Feature

Shipping info

Last order dates for Christmas Shipping

  • Order by December 20th (Express shipping)

Standard tracked shipping

  • $5.95
  • FREE on orders over $35
  • (2-5 business days*)

Express tracked shipping

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

*Find out more about shipping here.

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4.6
Rated 4.6 out of 5 stars
Based on 760 reviews
Total 5 star reviews: 562 Total 4 star reviews: 127 Total 3 star reviews: 39 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.
760 reviews
  • Hareem H.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Breakouts, Texture, Redness, Acne Scars, Fine Lines and Wrinkles
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    5 days ago
    Love it!!

    This is the lightest Niacinamide serum I’ve used and has significantly reduced my redness and the bumpiness from my acne.

  • Emilia
    Reviewing
    Niacinamide Serum
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    5 Stars

    Really helped make my skin glow.

  • Lori
    Reviewing
    Niacinamide Serum
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    5 Stars

    I love every product that I’ve ordered from

    INKEY