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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 (614 Reviews)
£15.00 £20.00 / 2 full-size products

Extra 10% off* over £30 with code SURPRISE10

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Introducing our dynamic duo of lightweight Niacinamide Serums, power-packed and effortlessly layered into your skincare routine to combat excess oil and redness.

Formulated with 10% Niacinamide, this naturally occurring B3 vitamin helps to effectively reduce excess oil, blemishes and redness. This anti-blemish serum has a thin consistency and is formulated with 1% Hyaluronic Acid for added hydration and effective delivery, 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:

  • Carbon Net-Zero
  • B-Corp
  • Cruelty Free
  • Recyclable
  • Travel Size
  • Gluten Free
  • Fragrance Free

Awards & Features

Cosmopolitan Award
Stylist Magazine Award
Glamour Award

Delivery info

Standard tracked delivery (Royal Mail)

£3.99
(2-5 working days*)

FREE standard tracked delivery on orders over £30

Express tracked delivery (Royal Mail)

£5.95 (Up to 2 working days if ordered before 4pm, excluding weekends*)

FREE express tracked delivery on orders £50+

*Find out more about Delivery here.

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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 614 reviews
Total 5 star reviews: 440 Total 4 star reviews: 110 Total 3 star reviews: 32 Total 2 star reviews: 12 Total 1 star reviews: 20
614 reviews
  • Tamari T.
    Verified Buyer
    Niacinamide Serum
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Oily
    Skin Concerns Acne Scars, Blackheads
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 hours ago
    Niacinamide Serum

    I have an oily, acne prone skin, so niacinamide serum is always part of my everyday skincare routine. I am satisfied inkey list niacinamide serum and use it for 2 years. My skin absorbs it fully and doesn’t rub.

  • Raiza S.
    Verified Buyer
    Niacinamide Serum
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 18 - 24
    Skin Type Combination
    Skin Concerns Breakouts, Hyperpigmentation, Redness, Oiliness
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 days ago
    So good!

    You can not go wrong with this serum! helped alot of my oiliness!!

  • Patricia T.
    Verified Buyer
    Niacinamide Serum
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 45 - 54
    Skin Type Combination
    Skin Concerns Redness, Texture, Dryness, Acne Scars, Under Eye Circles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    6 days ago
    Ce produit a sauver ma peau

    J'ai une peau mixte, sensible et atopique mais avec beaucoup d'imperfections. Ce produit ma sauvé! En quelques semaines, j'ai clairement vu un changement flagrant dans sa texture et l'irregularité. SVP INKEY faites de grand format.

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