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

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

20% OFF

Skin /
Serums /
Niacinamide Serum

Niacinamide Serum

Name: Niacinamide Serum
Brand: Inkey List
SKU: IF006CE
Price: 8.40 USD
Availability: InStock
Rating: 4.6 (760 reviews)

Helps visibly reduce excess oil, blemishes and redness

4.6

Rated 4.6 out of 5 stars

4.6 Stars (760 Reviews)

$8.40 ~~$10.50~~ / 30ml

20% off end of year sale! Exclusions apply.

Loading…

Worth 40 Points

What you get: A lightweight, hard-working serum for glowing skin. Powered by Niacinamide for calmer and more even looking complexion.

Why it works: 10% Niacinamide reduces the appearances of excess oil, blemishes and redness. Hyaluronic Acid hydrates and soothes 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.

Suitable for:

All skin types
Sensitive skin
Pregnancy & breastfeeding

Targets:

Excess oil
Redness
Breakouts & blemishes

How to Use

Use in your AM and PM routine. After cleansing and hydrating, apply a pea-sized amount of Niacinamide Serum to face and neck.

Follow with

Moisturizer.

Finish with SPF in your AM routine.

INKEY Tip

Layer from thinnest to thickest formulas, allowing time between each step to help prevent pilling. If your skin is sensitive, apply Niacinamide before Retinol to help reduce potential irritation.

Heads up

Avoid using with high-strength Vitamin C or exfoliating acids (AHAs, BHAs, PHAs). Safe to use with our 15% Vitamin C + EGF Serum.

When adding new products to your skincare routine, we always recommend patch testing. Learn more here.

Storage

Keep out of direct sunlight. Avoid eyes. For external use only. Keep out of reach of children.

Ingredients

10% Niacinamide: Reduces the appearances of excess oil, blemishes and redness.
Hyaluronic Acid : Hydrates and plumps skin.

Water (Aqua / Eau), Niacinamide, Glycerin, Propanediol, Butylene Glycol, Phenoxyethanol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyethylcellulose, Phospholipids, Squalane, Xanthan Gum, Glycine Soja (Soybean) Oil, Allantoin, Sodium Phytate, Polysorbate 60, Panthenol, Glycolipids, Leuconostoc/Radish Root Ferment Filtrate, Sorbitan Isostearate, Glycine Soja (Soybean) Sterols, Citric Acid, Hyaluronic Acid, Disodium Phosphate, Sodium Phosphate.

FAQs

CAN I USE THIS IN THE AM OR PM? Both! It’s safe and effective morning and night.

CAN I LAYER IT WITH OTHER ACTIVES? Yes - but avoid using with high-strength Vitamin C (like our 30%) and exfoliating acids (AHAs, BHAs, PHAs). Safe to use with our 15% Vitamin C + EGF.

CAN I USE THIS WITH RETINOL? Absolutely. Apply Niacinamide before Retinol to help reduce potential irritation.

IS IT GOOD FOR DRY SKIN TOO? Yes! It helps balance oil production, making it great for both dry and oily skin types.

WHAT’S THE % OF NIACINAMIDE? 10%

SHOULD I USE THIS OR THE 20% NIACINAMIDE SOLUTION? If you have oily skin all over, go for our 20% Niacinamide. For combination or t-zone oiliness (and no active breakouts), stick with the 10%.

WHAT’S THE PH LEVEL? 6.09 HOW LONG UNTIL I SEE RESULTS? Give it 4–6 weeks of consistent use. More isn’t always better - overuse can cause irritation.

WHY ISN’T THIS PRODUCT VEGAN? It contains one egg-derived ingredient.

IS THE SQUALANE ANIMAL DERIVED? No - it’s plant-based.

IS IT SAFE FOR PREGNANCY OR BREASTFEEDING? Yes

CAN I USE THIS WITH PRESCRIPTION TREATMENTS? Check with your doctor first.

Inkey Decoded

Skincare can be confusing.

So we cut the BS, and get straight to the point. We simplify the INCI list - commonly known as the ingredients list, that every skincare product has. That’s also where we get our name from. We’re The INKEY List - here to help you get better skin with real knowledge and formulas that deliver. No BS. No hype. Just effective, science-backed skincare that does what it says it will. We show you what your skin needs, not what’s trending. Whether you’re new to skincare or have a solid routine, we’ve always got your back with innovation, education and clinically-proven results.

All at a price that makes sense.

We are B CORP. Our products are formulated with responsibly sourced ingredients, and packaged with 100% recyclable materials. Skin needs love, but so does our planet.

Carbon Net-Zero. All our emissions are offset annually through planet friendly projects with a focus on education.

Approved under the Cruelty Free International Leaping Bunny programme.

100% of our packaging is recyclable. Learn how to recycle your INKEY List products.

This product is;

Fragrance-free

Gluten-free

Pregnancy & Breastfeeding safe

Awards & Features

Shipping info

Last order dates for Christmas Shipping

Order by December 20th (Express shipping)

Standard tracked shipping

$5.95
FREE on 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

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

or

Have you tried?

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

More Info

Your Acne, Analyzed

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

Start Analysis

More Blogs

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
"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.

Aysu
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.

Shannon
'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 760 reviews

Total 5 star reviews: 562 Total 4 star reviews: 127 Total 3 star reviews: 39 Total 2 star reviews: 11 Total 1 star reviews: 21

Reviews Summary

Customers say this serum has a light, silky texture that absorbs well into the skin. Many users report reduced oiliness, especially in the T-zone area. The product receives praise for minimizing the appearance of pores and evening out skin texture. Long-term users mention consistent results with regular use, with many on their third or fourth bottle. While most find it gentle, a few note it didn't suit their skin type. Common feedback includes its effectiveness for combination skin types and its non-sticky formula. Reviews highlight its compatibility with other skincare products.

Write a Review (Opens in a new window)

760 reviews

Sort

Hareem H.
Verified Buyer
Reviewing
Niacinamide Serum
I recommend this product
Age Range 25 - 34
Skin Type Combination
Skin Concerns Breakouts, Texture, Redness, Acne Scars, Fine Lines and Wrinkles
Have you purchased an INKEY List product before? Yes
How long have you used this product for? 1 month - 3 months
Sensitive Skin Suitability Suitable for my sensitive skin
Rated 5 out of 5 stars
5 days ago
Love it!!
This is the lightest Niacinamide serum I’ve used and has significantly reduced my redness and the bumpiness from my acne.
Was this helpful?
Emilia
Reviewing
Niacinamide Serum
I recommend this product
Rated 5 out of 5 stars
6 days ago
5 Stars
Really helped make my skin glow.
Was this helpful?
Lori
Reviewing
Niacinamide Serum
I recommend this product
Rated 5 out of 5 stars
1 week ago
5 Stars
I love every product that I’ve ordered from
INKEY
Was this helpful?

Shop Related Categories

Skincare Sets NEW Exosome Hydro-Glow Complex Moisturizers

Your Cart

Niacinamide Serum

Suitable for:

Targets:

How to Use

Ingredients

FAQs

Inkey Decoded

Awards & Features

Shipping info

Hydrocolloid Invisible Pimple Patches - Pack of 22

Salicylic Acid Cleanser - 150ml

Omega Water Cream - 50ml

360° Acne Clearing Serum

Beta Hydroxy Acid (BHA) Serum

Mandelic Acid Treatment

Blackhead Routine

Niacinamide Serum Duo

Compare with...

Niacinamide Serum

Your Acne, Analyzed

How to Layer Skincare

Oily Skin 101

Acne 101

Shop Related Categories

Follow Us

Rewards

Where are you shopping?

Niacinamide Serum | The INKEY List

Suitable for:

Targets:

How to Use

Ingredients

FAQs

Inkey Decoded

Awards & Features

Shipping info

Hydrocolloid Invisible Pimple Patches - Pack of 22

Salicylic Acid Cleanser - 150ml

Omega Water Cream - 50ml

360° Acne Clearing Serum

Beta Hydroxy Acid (BHA) Serum

Mandelic Acid Treatment

Blackhead Routine

Niacinamide Serum Duo

Compare with...

Niacinamide Serum

Your Acne, Analyzed

Related Blog Posts

How to Layer Skincare

Oily Skin 101

Acne 101

Shop Related Categories

Niacinamide Serum