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Niacinamide Duo
Before & After of customer using Niacinamide Serum
How to layer Niacinamide Serum in your routine
Apply pea-sized amount
When to apply AM & PM
Ingredients in Niacinamide Serum
Model with Niacinamide Serum on her face
Model with Niacinamide Bottle

Niacinamide Serum Duo | The INKEY List

Power packed duo for reducing excess oil, blemishes and redness

4.5
Rated 4.5 out of 5 stars
4.5 Stars (655 Reviews)
€19,00 €20,00 / 2 full-size products
Introducing our powerful duo of lightweight Niacinamide Serums, designed to effortlessly tackle excess oil and redness while seamlessly fitting into your skincare routine.

Formulated with 10% Niacinamide, a naturally occurring B3 vitamin, this serum works to reduce blemishes, control oil production, and calm redness. With a thin, fast-absorbing formula and the added benefit of 1% Hyaluronic Acid, it provides essential hydration while delivering targeted results, leaving your skin smoother and radiant.

This duo includes: 2x Niacinamide Serums (15ml)

Suitable for:

  • All Skin Types
  • Sensitive Skin

Targets:

  • Excess Oil
  • Redness
  • Breakouts & Blemishes

Proud to be:

  • Fragrance Free
  • Carbon Net-Zero
  • B-Corp
  • Recyclable
  • Travel Size
  • Gluten Free
  • Cruelty Free
  • Pregnancy & Breastfeeding Safe

Awards & Features

Cosmopolitan Award
Glamour Feature

Shipping info

Standard EU Tracked Shipping

  • €5.95**
  • FREE on your first order & over €45**
  • (2-5 business days*)

**The following countries are subject to increased Standard Tracked Shipping rates and increased FREE shipping thresholds. In addition, Express Shipping is not available to these countries.

  • €6.95 - Denmark, Finland, Switzerland, Estonia, Luxembourg - FREE on your first order & over €45
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  • €11.95
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4.5
Rated 4.5 out of 5 stars
Based on 655 reviews
Total 5 star reviews: 473 Total 4 star reviews: 115 Total 3 star reviews: 35 Total 2 star reviews: 11 Total 1 star reviews: 21
Reviews Summary
Customers say this serum has a lightweight, easily absorbed texture that works well on their skin. Many reviews mention reduced facial oil and redness, with frequent users noting improvements in skin texture. The serum pairs well with other skincare products, though some find it needs time to dry between layers. While most experience positive results, a few report sensitivity or breakouts. Reviews particularly highlight its effectiveness for oily skin concerns and many mention becoming repeat purchasers.
655 reviews
  • Alexia G.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Normal
    Skin Concerns Dryness, Fine Lines and Wrinkles, Plumping, Under Eye Circles
    Sensitive Skin Friendly? No
    Rated 5 out of 5 stars
    6 days ago
    Great product at a great price

    Niacinamide is such a great ingredient! And this one is very effective and well absorbed.

  • Maddie W.
    Verified Buyer
    Reviewing
    Niacinamide Serum Duo
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    Great for acne-prone skin

    I've been using the niacinamide serum for about 5 years now, and it works great for my skin! Helps with oiliness and clearing up the aftermath of breakouts.

  • G P.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Dry
    Skin Concerns Hyperpigmentation
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 month ago
    Great

    I love this serum, it’s very silky but absorbs very well onto the skin. I like to use it before the retinol serum at night. But when I use it twice a day I can see the brightening effect. Very gentle