Skip to main content
Niacinamide Serum bottle
Close-up of a person applying a product to their eye with text highlighting its benefits. of Niacinamide Serum
Skincare product with text on how to layer Niacinamide Serum in a routine on a neutral background
Ingredients in Niacinamide Serum
Cosmetic dropper with sNiacinamide Serum being applied to skin, accompanied by usage instructions.
Before and after comparison of a person's face with acne on the left and clear skin on the right.
Model with Niacinamide Serum
Model with Niacinamide Serum on her face

10% Niacinamide Serum

Visibly reduces excess oil, blemishes and enlarged pores

4.5
Rated 4.5 out of 5 stars
4.5 Stars (727 Reviews)
£10.00 / 30ml

What you get: A lightweight 10% Niacinamide serum that targets excess oil, reduces blemishes, and minimises the appearance of pores for visibly clearer skin.

Why it works: 10% Niacinamide regulates oil production and calms blemishes, while Hyaluronic Acid delivers lightweight hydration for balanced, clearer-looking skin.

How it feels: Lightweight and layers easily with skincare, spf and makeup.

When to use: Use AM/PM, after cleansing and applying your hydrator. Follow with moisturiser, and SPF in the AM.

Suitable for:

  • All skin types
  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Awards & Features

  • Cosmopolitan Award
  • Stylist Magazine Award
  • Glamour

Niacinamide for beginners: Why 10% is the perfect starting point

New to niacinamide skincare? You're in the right place. Our 10% concentration is specifically designed for niacinamide beginners and all skin types - even sensitive skin.Unlike harsher blemish treatments that can cause dryness and irritation, niacinamide (vitamin B3) works gently to regulate oil production at the source. The result? Visibly clearer skin and refined pores without the redness or flaking.

Perfect for:

  • First-time niacinamide users

  • Sensitive or reactive skin

  • Combination skin with t-zone oiliness

Delivery info

Last order dates for Christmas delivery

  • Order by 8pm December 19th (Express)

Standard tracked delivery (Evri)

  • £3.99
  • FREE on orders over £30
  • (2-5 working days*) 

Express tracked delivery (Evri)

  • £5.95 or FREE on orders £50+
  • (Up to 2 working days if ordered before 8pm, excluding weekends*)

*Find out more about delivery options and delivery area restrictions here.

Track the status of your parcel with
our trusted couriers

Compare with...

This product

Have you tried?

This product

10% Niacinamide Serum

10% Niacinamide Serum

  • •Reduces excess oil, blemishes and redness
  • •10% Niacinamide.
  • •For normal to oily skin with uneven skin tone

or

Have you tried?

20% Niacinamide Serum

20% Niacinamide Serum

  • •Balances excess oil
  • •20% Niacinamide
  • •For blemish prone skin with uneven skin texture

Your Breakouts, Analyzed

Start understanding your Breakouts. Try our NEW Breakout Analyzer Pro.

Start Analysis
  • Before and after showing results of 10% Niacinamide Serum
    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 showing results of 10% Niacinamide Serum
    "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 showing results of 10% Niacinamide Serum
    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 showing results of 10% Niacinamide Serum
    Mia is a loyal INKEY customer, using Salicylic Acid Cleanser in her recipe along with Succinic Acid Treatment, Mandelic Acid Treatment, Retinol Serum and Niacinamide Serum.

    Mia M

  • Before and after showing results of 10% Niacinamide Serum
    Shannon shared her INKEY Insiders 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

  • Before and after showing results of 10% Niacinamide Serum
    'I’ve always found it hard to find a routine to manage my dry but acne prone skin. These products helped reduce my inflammation, whilst also keeping my skin really hydrated and glowing.' @ charlotterowe26

    Charlotte

4.5
Rated 4.5 out of 5 stars
Based on 727 reviews
Total 5 star reviews: 524 Total 4 star reviews: 126 Total 3 star reviews: 40 Total 2 star reviews: 12 Total 1 star reviews: 25
Reviews Summary
Customers say this serum has a lightweight, non-sticky texture that absorbs quickly into skin. Many users report it helps control oiliness, reduces redness, and minimizes the appearance of pores. Frequent comments mention its effectiveness for acne-prone skin, with users noting clearer complexion and fewer breakouts. Several customers have been repurchasing for years, finding it gentle enough for sensitive skin. Some mention it works well under makeup, while others prefer evening use. A few users note concerns about recent formula changes affecting smell and texture, and some experience skin irritation or see no noticeable results.
727 reviews
  • M
    Verified Reviewer
    Reviewing
    10% Niacinamide Serum
    I do not recommend this product
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Suitability Not suitable for my sensitive skin
    Rated 1 out of 5 stars
    4 days ago
    Bad

    I get horrible redness after using

    IU Profile picture for INKEY UK
    INKEY UK
    2 days ago

    Thank you so much for taking the time to share your honest feedback about our 10% Niacinamide Serum, M.

    We're truly sorry to hear about your experience with redness after using our product - this is absolutely not the experience we want any of our customers to have. We completely understand why you had to discontinue use, and your decision to prioritise your skin's wellbeing was absolutely the right choice.

    We take your experience very seriously, and we genuinely appreciate you sharing these important details about how the product affected your skin. Your feedback is incredibly valuable to us and helps us understand how we can improve.

    We'd love for you to reach out to our askINKEY Team, as we would greatly appreciate the opportunity to understand your experience further and explore how we can support you 🖤

  • Laura G.
    Verified Buyer
    Reviewing
    10% Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Fine Lines and Wrinkles, Damaged Skin Barrier, Plumping, Dehydration, Texture
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Suitability Suitable for my sensitive skin
    Rated 5 out of 5 stars
    1 week ago
    Improved my skin

    Since using this I've noticed less spots and my skin is slightly less oily. Will reorder again for sure

  • Amelie G.
    Verified Buyer
    Reviewing
    10% Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Dry
    Skin Concerns Dryness, Texture
    How long have you used this product for? 1 month - 3 months
    Rated 4 out of 5 stars
    1 week ago
    So far so good

    Work well