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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 (756 Reviews)
$19.95 $21.00 / 2 full-size products

$1 from every bundle purchased is donated to the INKEY Impact Fund this month

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

Standard tracked shipping

  • FREE on all orders
  • (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 756 reviews
Total 5 star reviews: 558 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.
756 reviews
  • Hannah W.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Hyperpigmentation, Acne Scars, Redness, Blackheads, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    Nia10

    Awesome product and works so well, highly recommended!

  • lucy
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Dry
    Skin Concerns Breakouts
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    great

    great

  • Ioanna L.
    Verified Buyer
    Reviewing
    Niacinamide Serum Duo
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Redness, Texture, Hyperpigmentation, Acne Scars, Dryness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 weeks ago
    Love it!

    Keep ordering it again and again!