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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 | The INKEY List

Helps visibly reduce excess oil, blemishes and redness

4.6
Rated 4.6 out of 5 stars
4.6 Stars (753 Reviews)
$15.75 $21.00 / 2 full-size products

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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.


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

  • $5.95 or 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 753 reviews
Total 5 star reviews: 555 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.
753 reviews
  • Justīne M.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Oily
    Skin Concerns Acne Scars, Breakouts, Redness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Amazing as always

    Love this. Formula that doesn't pill and dries nicely

  • Mariana S.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Hyperpigmentation, Texture, Breakouts
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    Effective Niacinamide Serum

    I’ve purchased this Niacinamide Serum multiple times and it always delivers. Lightweight and fast-absorbing, it helps reduce blemishes, evens skin tone, and leaves my skin smooth and refreshed. Perfect for daily use!

  • Irene F.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Normal
    Skin Concerns Breakouts, Texture, Hyperpigmentation, Acne Scars, Dryness
    Rated 4 out of 5 stars
    3 weeks ago
    Good

    It feels tacky on my skin. But it does deliver.