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Niacinamide Duo Shot
How to layer Niacinamide Serum in your routine
Before & After of customer using Niacinamide Serum
Apply pea sized amount
Apply AM & PM
Key ingredients in Niacinamide Serum
Model with Niacinamide Serum
Model with Niacinamide Serum on her face

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 (702 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
  • Pregnancy & Breastfeeding

Targets:

  • Excess Oil
  • Redness
  • Breakouts & Blemishes

Awards & Features

Cosmopolitan Award
Stylist Magazine Award
Glamour Award

Delivery info

Standard tracked delivery (Evri)

  • £3.99 or FREE on your first order & orders over £30
  • (2-5 working days*) 

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  • (Up to 2 working days if ordered before 8pm, excluding weekends*)

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  • Before and after comparison
    Zaklina uses Fulvic Acid Cleanser with Niacinamide Serum, Tranexamic Acid Serum and Vitamin BCE Moisturiser. “You took my skin (and face) to another level! Thank you INKEY List.”

    Zaklina

  • Before and after comparison
    "This is after just a couple of months using The INKEY List... I couldn't not show you. I had tried everything before and nothing ever helped!"

    Tina C

  • Before and after comparison

    Aysu started using Niacinamide Serum in her routine to improve her skin. After 2 months of use, her redness and breakouts have reduced.


    Aysu

  • Before and after comparison
    Mia is a loyal INKEY customer, using Salicylic Acid Cleanser in her routine along with Succinic Acid Treatment, Mandelic Acid Treatment, Retinol Serum and Niacinamide Serum.

    Mia M

  • Before and after comparison
    Shannon shared her myINKEY skin journey with her TikTok followers. She used Omega Water Cream AM and PM to improve her skin barrier, alongside Beta Hydroxy Acid Serum, Niacinamide Serum, Salicylic Acid Cleanser and Succinic Acid Treatment to tackle her breakouts.

    Shannon

4.5
Rated 4.5 out of 5 stars
Based on 702 reviews
Total 5 star reviews: 506 Total 4 star reviews: 123 Total 3 star reviews: 37 Total 2 star reviews: 12 Total 1 star reviews: 24
Reviews Summary
Customers say this serum has a light, silky texture that absorbs well into the skin. Many reviews mention reduced oiliness, especially in the T-zone area. Users note improvements in skin texture and appearance of pores. The serum receives praise for its gentle formula, with several mentioning they've been repeat purchasers for years. While most find it effective, some note recent formula changes affecting texture and absorption. Common feedback includes its effectiveness for combination skin types and easy incorporation into daily routines. Reviews particularly highlight its soothing properties when used before other products.
702 reviews
  • Emilie M.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Texture, Hyperpigmentation, Breakouts, Blackheads
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 days ago
    I really like it

    It’s pretty simple. I like it and it works for me.

  • Geoffrey
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    A Skaincare Staple

    I throughly enjoy this niacinamide serum. It packs a punch. I use this serum everyday after double cleansing and a hydrating serum. Helping to reduce oil and redness, the appearance of pores, and including 1% hydrating hyaluronic acid; this effective and gentle multitasker is not to be overlooked.

  • Ava W.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Redness, Breakouts, Dryness, Blackheads
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    1 week ago
    Love

    This is amazing