NEW! Milk it, spritz it. Hydration from AM to PM. Shop now >

NEW Exosome Hydro-Glow Complex Shop now >

Free shipping on orders over $35

Niacinamide Serum bottle on a shelf
Before and after using Niacinamide Serum
How to layer Niacinamide Serum in your routine: Step 3, treat
Amount to apply: Pea-sized amount
When to apply: AM and PM
Niacinamide Serum ingredients
Model holding a bottle of Niacinamide Serum
Model applying Niacinamide Serum to her face

Niacinamide Serum | The INKEY List

Helps visibly reduce excess oil, blemishes and redness

4.6
Rated 4.6 out of 5 stars
4.6 Stars (728 Reviews)
$10.50 / 30ml
A lightweight, power-packed Niacinamide Serum that can be easily layered into your skincare routine.

Containing 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.

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
  • Pregnancy & Breastfeeding Safe

Awards & Features

Cosmopolitan Award
Popsugar feature
Glamour Feature

Shipping info

Standard tracked shipping

  • $5.95 or FREE on your first order & orders over $35
  • (2-5 business days*)

Express tracked shipping

  • $15
  • (2-3 business days*, when ordered before 3pm EST)

*Find out more about shipping here.

Track the status of your parcel with
our trusted couriers

Compare with...

This product

Have you tried?

This product

Niacinamide Serum

Niacinamide Serum

  • •Contains 10% Niacinamide to help effectively reduce excess oil, blemishes and redness.
  • •Formulated with 1% Hyaluronic Acid for added hydration and effective delivery.

or

Have you tried?

Excess Oil Solution

Excess Oil Solution

  • •Formulated with 20% Niacinamide to balance excess oil and improve skin texture.
  • •Contains our highest % of Niacinamide, which helps reduce excess oil production throughout the day and effectively tighten the look of enlarged pores.

Your Acne, Analyzed

Start understanding your Acne. Try our NEW Acne Analyzer Pro.

Start Analysis
  • Before and after comparison
    Zaklina uses Fulvic Acid Cleanser with Niacinamide Serum, Tranexamic Acid Serum and Vitamin BCE Moisturizer. “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

  • Before and after comparison
    '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

4.6
Rated 4.6 out of 5 stars
Based on 728 reviews
Total 5 star reviews: 536 Total 4 star reviews: 124 Total 3 star reviews: 36 Total 2 star reviews: 11 Total 1 star reviews: 21
Reviews Summary
Customers say this serum has a lightweight, smooth texture that absorbs quickly into skin. Many reviews mention reduced oiliness, especially in the T-zone area. The product helps with skin texture and appearance, with frequent comments about its effectiveness for redness. Users note it works well as part of their skincare routine, though some suggest letting it dry completely before applying other products. While most find it gentle, a few mention it may not suit very sensitive skin. Many reviewers are repeat purchasers, with several mentioning they're on their third or fourth bottle.
728 reviews
  • beth l.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Breakouts, Dryness, Damaged Skin Barrier
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    5 minutes ago
    Great product

    Great product, my skin has been so much better following the use of this product and my skin is looking so much healthier. Was having loads of breakouts prior and now my skin is great since I’ve been using this product

  • Laola l.
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Breakouts
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    3 days ago
    Lo adoro

    Perfetto per pelle mista e oily. Mi ha migliorato molto la texture

  • Eli
    Verified Buyer
    Reviewing
    Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Normal
    Skin Concerns Texture, Breakouts, Fine Lines and Wrinkles
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    4 days ago
    Value for money 15/10

    This is such a nice serum and the skin feels and looks amazing. Been using it twice a day for at least two years now and not planning to change that