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Skin /
Serums /
20% Niacinamide Serum

20% Niacinamide Serum

Name: 20% Niacinamide Serum
Brand: The INKEY List EU
Price: 1700 EUR
Availability: InStock
Rating: 4.2 (302 reviews)

Help balance excess oil, improve skin texture and reduce the appearance of pore size.

4.2

Rated 4.2 out of 5 stars

4.2 Stars (302 Reviews)

€17,00 / 30ml

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Worth 85 Points

What you get: A lightweight, non-sticky serum with 20% Niacinamide to help control oil, smooth texture, and visibly reduce the look of pores.

Why it works: 20% Niacinamide helps reduce oil and tighten the look of pores. Zinc PCA tackles sebum buildup. Squalane supports and protects the skin barrier.

How it feels: Lightweight, non-sticky and layers easily.

When to use: Use this niacinamide serum for oily skin AM and PM, after cleansing and applying your hydrator. Follow with moisturizer, and SPF in the AM.

Suitable for:

Oily skin
Pregnancy & breastfeeding

Targets:

Excess oil all over the face
Breakouts & blemishes
Enlarged pores

How to Use

Use in your AM and PM routine. After cleansing and hydrating, apply a pea-sized amount of this oil control serum to face and neck.

Follow with

Moisturizer

SPF in your AM routine.

INKEY Tip

Don’t mix with Vitamin C - alternate use on different days.

This is best for full-face oiliness and visible pores.

If you’ve got combo skin or just a shiny t-zone, try the 10% Niaciniamide Serum instead.

Heads up

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

Storage

Store in a cool, dry place (15–25 °C), away from direct sunlight. Avoid direct contact with eyes. For external use only. Keep out of reach of children.

Ingredients

20% Niacinamide: Our highest inclusion. Reduces the appearances of excess oil, blemishes and redness.
0.5% Zinc PCA: Targets bumps and texture caused by sebum build-up.
3% Squalane: Helps to protect the skin’s barrier.

Aqua (Water), Niacinamide, Butylene Glycol, Squalane, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Glycerin, Phenoxyethanol, Benzyl Alcohol, Ammonium Acryloyldimethyltaurate/VP Copolymer, Zinc PCA, Polysorbate 60, Ethylhexylglycerin, Dehydroacetic Acid, Sorbitan Isostearate, Trisodium Ethylenediamine Disuccinate.

Developed with Dermatologists

"As a dermatologoist I enjoyed giving my inpout on this particualr product because excess oil affects so many people, it can lead to clogged pores, enlarged pores, breakouts and even textural changes. This particular formulation includes Niacinmide at 20%, which is the highest possible inclusion of this ingredient and it will help to control excess oil, improve texture and reduce the apperance of pore size".

- Dr Adeline Kikam. Dermatologist & Doctor, @brownskinderm

Learn more about the SuperSolutions range

FAQs

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

CAN I USE IT LONG TERM? Yes.

HOW OFTEN SHOULD I USE IT? Daily use is ideal both AM/ PM. Consistency = results.

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? 20%

CAN I LAYER IT? Layer with your usual skincare routine. Keep exfoliating products containing AHAs and BHAs in your PM routine.

CAN I USE THIS WITH RETINOL? We recommend using our lower % Niacinamide, 10% Niaciniamide Serum, with Retinol. If you're using Retinol at night, use this in the AM.

CAN I USE THIS WITH VITAMIN C? Yes - just alternate use.

PH LEVEL? 5-6

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

WHY DOES IT LEAVE A WHITE FILM? You’re using too much. Use less and follow with your serum or moisturiser right away!

IS THIS SAFE FOR THOSE WHO ARE PREGNANT OR BREASTFEEDING? Yes.

IS IT VEGAN? Yes! Certified by The Vegan Society. No animal derivatives.

CAN I USE IT WITH PRESCRIPTION MEDICATION? Check with your doctor first.

We Give A Care

Skincare has become complicated. Too many ingredients, too many opinions, and too many products promising everything.

At The INKEY List, we believe you don't need more skincare, you need clarity you can trust. That's why we take the science and make it simple. We help people understand their skin, find the right ingredients, and build routines that deliver real results. Through innovative, science-backed formulas, we make effective skincare accessible to everyone. Because we care about great skincare for everyone.

Clear guidance. Proven ingredients. Real results.

Because at The INKEY List, We Give A Care.

Approved under the Cruelty Free International Leaping Bunny programme.

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

Certified by The Vegan Society

This product is;

Dermalogically tested

Clinically tested

Fragrance-free

Gluten-free

Pregnancy & Breastfeeding safe

Clinically proven to control oil for 8 hours.*

*DISCLAIMER: Independent clinical study of 20 people.
Immediately reduces excess oil by up to 60%.*

*DISCLAIMER: Independent clinical study of 20 people.
92% agree pores look and feel smoother after 3 days.*

*DISCLAIMER: 4 week independent consumer trial of 50 people with oily skin.
91% agree the serum improved the texture and evenness of their skin after 3 days.*

*DISCLAIMER: 4 week independent consumer trial of 50 people with oily skin.
92% agree skin feels fresh, balanced and less shiny after 3 days.*

*DISCLAIMER: 4 week independent consumer trial of 50 people with oily skin.

Should I be using 20% Niacinamide?

Supersolution

Have you tried?

Supersolution

20% Niacinamide Serum

Suitable for...

People who have excess oil, all over the face rather than just in the t-zone, causing oil-related concerns such as enlarged, visible pores and textured skin.

€17,00 / 30ml

or

Have you tried?

10% Niacinamide Serum

Suitable for...

People who have combination skin or t-zone oiliness, or do not have active acne or breakouts.

€10,00 / 30ml

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4.2

Rated 4.2 out of 5 stars

Based on 302 reviews

Reviews Summary

Customers say this serum helps control oil throughout the day, particularly in the T-zone area. Many reviews mention reduced shine and longer-lasting makeup. While some note visible results within weeks, others report mixed experiences with oil control. Common feedback includes a white residue that can appear if not carefully applied. The texture feels lightweight and absorbs quickly for most users. Some mention the packaging could be improved, with product sometimes leaking or being difficult to dispense. Reviews are mixed on pore appearance, with some reporting noticeable improvements while others see minimal change.

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302 reviews

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Charlie-Rose T. C.
Verified Buyer
I recommend this product
Age Range 25 - 34
Skin Type Oily
Skin Concerns Dehydration, Oiliness, Dull Skin
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
4 days ago
My go to item!
Wouldn't use anything else under my makeup to keep my skin feeling perfect!
Was this helpful?
Sharon B.
Verified Buyer
I recommend this product
Age Range 45 - 54
Skin Type Combination
Skin Concerns Oiliness, Fine Lines and Wrinkles, Under Eye Circles
Have you purchased an INKEY List product before? Yes
How long have you used this product for? 1-3 weeks
Sensitive Skin Suitability I don’t have sensitive skin
Rated 5 out of 5 stars
2 weeks ago
Non- sticky feel!
First purchase of stronger niacinamide serum. Although this feels thicker it’s seems less sticker and soaks into the skin easily. I feel less oily in my t-zone by the end of the day.
Was this helpful?
Annemarie H.
Verified Buyer
I recommend this product
Age Range 45 - 54
Skin Type Combination
Skin Concerns Redness, Fine Lines and Wrinkles, Dryness
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 5 out of 5 stars
2 months ago
So good
Love this product, first time user and its amazing,
Was this helpful?

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20% Niacinamide Serum

Suitable for:

Targets:

How to Use

Ingredients

Developed with Dermatologists

FAQs

We Give A Care

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