Skip to main content
2 Niacinamide Serums on shelf
Close-up of a person applying a product to their eye with text highlighting Niacinamide Serum benefits.
Skincare product with text on how to layer Niacinamide Serum in a routine on a neutral background
Ingredients in Niacinamide Serum
Cosmetic dropper with Niacinamide 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 holding a bottle of Niacinamide Serum
Model applying Niacinamide Serum to her face

10% Niacinamide Serum Duo

Visibly reduces excess oil, breakouts and the look of pores

4.6
Rated 4.6 out of 5 stars
4.6 Stars (783 Reviews)
$24.70 $26.00 / 2 full-size products

What you get: A lightweight 10% Niacinamide serum that targets excess oil, reduces blemishes, and minimizes 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 moisturizer, and SPF in the AM.


This Duo contains x2 Niacinamide Serum (30ml)

Suitable for:

  • Sensitive skin
  • Pregnancy & breastfeeding

Targets:

  • Excess oil
  • Redness
  • Breakouts & blemishes

Awards & Features

  • Cosmopolitan Award
  • Popsugar feature
  • Glamour Feature

Shipping info

  • Standard USA Tracked Shipping from $7.95* (2-5 business days*). FREE on orders over $40.
  • Standard Tracked Shipping rates per state:
  • $7.95 – Alabama, Arkansas, Colorado, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia,West Virginia, Wisconsin, Wyoming
  • $8.95 – Alaska, Arizona, California, Hawaii, Idaho, Nevada, Oregon, Washington


We are currently unavailable to ship to Guam, Puerto Rico or the US Virgin Islands due to carrier restrictions.  

  • *Please note the above shipping timelines are estimates and not guaranteed. Sometimes there may be delays – e.g. carrier delays, logistics, bad weather or things out of our control.   


Find out more about shipping here.

Our team can be reached via our contact us page with any further queries you have or email help@theinkeylist.com for any queries on delivery or taxes. 

Track the status of your parcel with
our trusted couriers

4.6
Rated 4.6 out of 5 stars
Based on 783 reviews
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 address its effectiveness for breakouts and improving skin texture. Several customers mention using it consistently for years and becoming repeat purchasers. While most praise its gentle formula suitable for sensitive skin, some note it can feel tacky or cause irritation. A few users mention concerns about recent formula changes affecting smell and consistency.
783 reviews
  • Anouk v. K.
    Verified Buyer
    Reviewing
    10% Niacinamide Serum
    I recommend this product
    Age Range 25 - 34
    Skin Type Combination
    Skin Concerns Acne Scars, Oiliness, Breakouts
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 1 month - 3 months
    Sensitive Skin Friendly? Yes
    Rated 4 out of 5 stars
    2 days ago
    I think its fine

    Happy with the serum. Can't say much about long term effects. Had a little purge but now my skins look a bit cleaner I believe.

  • Fab
    Reviewing
    10% Niacinamide Serum
    I recommend this product
    Rated 5 out of 5 stars
    6 days ago
    5 Stars

    Awesome product

  • Rose a. c.
    Verified Buyer
    Reviewing
    10% Niacinamide Serum
    I recommend this product
    Age Range 35 - 44
    Skin Type Combination
    Skin Concerns Breakouts, Dryness, Dull Skin, Hyperpigmentation, Acne Scars
    Have you purchased an INKEY List product before? Yes
    How long have you used this product for? 3 months +
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 weeks ago
    Niacinamide

    Love it!!