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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 (635 Reviews)
€19,00 €20,00 / 2 full-size products

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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
  • €8.95 - Spain, Portugal, Greece, Sweden, Croatia, Bulgaria, Romania - FREE on your first order & over €55
  • €11.95 - Malta, Cyprus, Iceland, Serbia, North Macedonia, Bosnia & Herzegovina, Monaco - FREE on your first order & over €65.

Express EU Tracked Shipping

  • €11.95
  • (up to 4 business days*, if ordered before 4pm CET on 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 635 reviews
Total 5 star reviews: 456 Total 4 star reviews: 113 Total 3 star reviews: 35 Total 2 star reviews: 11 Total 1 star reviews: 20
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.
635 reviews
  • Tiina M.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 55 - 64
    Skin Type Combination
    Skin Concerns Redness, Dryness, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Awesome

    My skin is enjoying this serum.

  • ATHI
    Verified Buyer
    Reviewing
    Niacinamide Serum
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Hyperpigmentation, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 3 out of 5 stars
    4 days ago
    Non male

    Rispetto ad altri marchi mi piace molto di più. Buon prodotto ma non lo trovo essenziale per la mia routine

  • Blodwyn
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 16 - 18
    Skin Type Normal
    Skin Concerns Redness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    5 days ago
    Bought a serum

    Bought a serum and it behaved like a serum. Yawn.