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Niacinamide Duo
Close-up of a person applying a 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 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 with Niacinamide Serum on her face
Model with Niacinamide Bottle

Niacinamide Serum Duo

Helps visibly reduce excess oil, blemishes and redness

4.5
Rated 4.5 out of 5 stars
4.5 Stars (680 Reviews)
€16,00 (Worth €20,00) / 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 moisturiser, and SPF in the AM.


 This duo includes: 2x Niacinamide Serums (30ml)

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Awards & Features

  • Cosmopolitan Award
  • Glamour Feature

Shipping info

Last order date for Christmas delivery

  • Order by December 18th (Standard)

Standard EU Tracked Shipping

  • FREE on ALL orders
  • (2-5 business days*)

Tariff or duties

  • Orders with EU shipping destinations won't be subject to any tariff or duties, however please note that there are a small number of EU and European territories that still require tariffs and duties that will need to be covered by the customer.

*Find out more about shipping here.

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4.5
Rated 4.5 out of 5 stars
Based on 680 reviews
Total 5 star reviews: 493 Total 4 star reviews: 117 Total 3 star reviews: 38 Total 2 star reviews: 11 Total 1 star reviews: 21
Reviews Summary
Customers say this serum has a lightweight, silky texture that absorbs quickly into skin. Many reviews mention reduced oiliness and minimized pores with regular use. The product receives praise for its gentle formula, with users noting improvements in skin texture and tone over time. While most find it effective for their daily routines, some mention it can feel tacky or may not suit very sensitive skin. Frequent users appreciate its consistency and report becoming repeat purchasers.
680 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.

    How easy was this product to use and understand?Rated 1.0 on a scale of 1 to 5
    Feel / TextureRated 5.0 on a scale of 1 to 5
    ResultsRated 5.0 on a scale of 1 to 5
  • Dr. S. N.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Oily
    Skin Concerns Fine Lines and Wrinkles, Oiliness, Blackheads
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    1 week ago
    Does the job

    Perfect texture, non-sticky and does the job

    Feel / TextureRated 5.0 on a scale of 1 to 5
    ResultsRated 4.0 on a scale of 1 to 5
  • 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
    3 weeks ago
    Nia10

    Awesome product and works so well, highly recommended!

    Feel / TextureRated 5.0 on a scale of 1 to 5
    ResultsRated 5.0 on a scale of 1 to 5