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Niacinamide Serum Duo | The INKEY List

Power packed serum duo for excess oil and redness

Rated 4.5 out of 5 stars
4.5 Stars (550 Reviews)
£16.00 £20.00 / 2 full-size products

20% OFF! Limited time only.


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


  • 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

Delivery info

Standard tracked delivery (Royal Mail)

(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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  • 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.”


  • "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

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


  • 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

  • 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.


Rated 4.5 out of 5 stars
Based on 550 reviews
Total 5 star reviews: 396 Total 4 star reviews: 96 Total 3 star reviews: 28 Total 2 star reviews: 11 Total 1 star reviews: 19
550 reviews
  • LG
    Verified Buyer
    Niacinamide Serum
    Niacinamide Serum
    I recommend this product
    Rated 5 out of 5 stars
    4 hours ago

    Nice texture and skin feels fresh after using.

  • haley w.
    Verified Buyer
    Niacinamide Serum
    Niacinamide Serum
    I recommend this product
    Rated 4 out of 5 stars
    11 hours ago
    So far so good

    Relatively new product for me.

  • mahnoor
    Niacinamide Serum
    Niacinamide Serum
    I do not recommend this product
    Sensitive Skin Friendly? Yes
    Rated 1 out of 5 stars
    Did not work for my oily skin

    i would recommend you buy super solution 20& niacinamide serum as that worked really well for me. Unfortunately with this one i saw no difference with my skin and dark scars were still there.

    TI Profile picture for The INKEY List UK
    The INKEY List UK

    Hello Mahnoor,

    Thank you for sharing your feedback with us, we appreciate you taking the time to provide insights into your experience with our Niacinamide Serum! We're grateful for your patience in giving our formulation a try, and for providing a recommendation that has worked well for you! If you would like further guidance in exploring alternative solutions tailored to your skin's unique needs, our askINKEY Team are always on hand to support 🖤

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