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Niacinamide Serum Duo
Close-up of a person applying Niacinamide Serum to their eye with text highlighting its benefits.
Skincare product with text on how to layer Niacinamide Serum in  routine on a neutral background
Ingredients in Niacinamide Serum
Niacinamide Serumt 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 with Niacinamide Serum bottle
Model with Niacinamide Serum on her face

Niacinamide Serum Duo

Helps visibly reduce excess oil, blemishes and redness

4.5
Rated 4.5 out of 5 stars
4.5 Stars (687 Reviews)
$22.40 $28.00 / 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 includes: 2x Niacinamide Serums (30ml)

Suitable for:

  • All skin types
  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Shipping info

Standard tracked shipping

  • FREE on orders over $50
  • (2-8 business days)

No import duties or fees - Your order will ship domestically from our Canadian warehouse so you can shop with confidence knowing your order will arrive quickly without extra costs

*Find out more about shipping here.

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4.5
Rated 4.5 out of 5 stars
Based on 687 reviews
Total 5 star reviews: 495 Total 4 star reviews: 121 Total 3 star reviews: 41 Total 2 star reviews: 11 Total 1 star reviews: 19
Reviews Summary
Customers say this serum has a lightweight, silky texture that absorbs quickly into the skin. Many reviews mention reduced oiliness and minimized pores with regular use. The serum receives praise for its gentle formula, with users noting improvements in skin texture and appearance over time. While most find it effective, some mention it can feel tacky. Frequent comments address its compatibility with other skincare products and its suitability for daily use. Reviews are mixed on the recent formula changes, with some noting differences in color and consistency.
687 reviews
  • Laura G.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Damaged Skin Barrier, Plumping, Dehydration, Texture
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    Yesterday
    Improved my skin

    Since using this I've noticed less spots and my skin is slightly less oily. Will reorder again for sure

  • Amelie G.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Dryness, Texture
    How long have you used this product for? 1 month - 3 months
    Rated 4 out of 5 stars
    5 days ago
    So far so good

    Work well

  • 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
    2 weeks ago
    Love it!!

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