Does this serum really contain 20% niacinamide?

Yes. The official ingredient declaration lists niacinamide at 20%.

Where does the serum go in a skincare routine?

Apply it after toner and before moisturizer.

How much should I apply, and should it be rinsed off?

Use 2–3 drops, gently pat the serum into your skin and leave it on.

Can it be used during the day?

Yes. When you use it during the day, finish your routine with sunscreen.

What does the serum feel like as it absorbs?

It has a lightweight, fast-absorbing feel with immediate hydration and a refreshing finish.

Does the formula include hydrating ingredients alongside niacinamide?

Yes. It includes glycerin, sodium PCA and multiple forms of hyaluronic acid for hydrating support.

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ISNTREE

Hyper Niacinamide 20 Serum

Q: Which skin types is this serum suited to?

It is listed for all skin types, with particular relevance to oily and acne-prone skin.

What it is: A lightweight leave-on facial serum designed to refine the look of enlarged pores, improve visible texture and brighten uneven-looking tone.

Visibly refined pores
Smoother, brighter-looking skin
Supportive hydration
Lightweight, fast-absorbing feel

Net weight: 20 ml

Hyper Niacinamide 20 Serum

20ml ·€9.00

Visibly refined pores

Smoother, brighter-looking skin

Supportive hydration

Lightweight, fast-absorbing feel

Main active: Niacinamide
Intensity: Advanced

PRODUCT DETAILS

A focused leave-on serum for the days when pores, texture and uneven-looking tone are taking up a little too much attention. Its formula declares 20% niacinamide and is designed to deliver more refined-looking pores, smoother texture and a brighter-looking tone.

Arbutin adds another tone-focused ingredient to the formula. Together, these ingredients make the serum a thoughtful choice when your goal is a clearer, more even-looking complexion without turning your routine into a long list of steps.

Hydration hasn't been left behind. PCA, glycerin and multiple forms of hyaluronic acid provide hydrating support alongside the niacinamide-focused formula. The serum has a lightweight, fast-absorbing feel with a refreshing finish, making its focused care feel easy to layer into your routine.

It is suited to all skin types, with particular relevance to oily and acne-prone skin. The 20 ml dropper bottle keeps this targeted serum neatly within reach.

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch€7.88

300 Reedle Shot Stick Pouch€8.88

30 Seconds Quick Bubble Mask LIFT€26.99

1025 Dokdo Sleeping Pack€14.98

2X Fresh Bam Balm To Foam€22.99

1025 Dokdo Cream€23.00

1025 Dokdo Pad€18.99

5α Control Clearing Cream€28.98

Focused care for visible pores, uneven texture and dull-looking tone, balanced with supportive hydration.

Refines the look of pores
Smooths visible texture
Brightens uneven-looking tone
Balances focus with hydration

Key Ingredients

Niacinamide

Helps visibly brighten uneven tone and support the skin barrier.

Abstract still life of translucent blush forms, soft mauve and peach folds, and clear droplets on a warm ivory studio surface.

Arbutin

The beta-D hydroquinone glucoside used in tone-focused formulas, with emerging product-specific evidence and separate identity from Alpha-Arbutin.

Clear hydrogel spheres and droplets on a pale lilac background.

Hyaluronic Acid

Helps hydrate and visibly plump the skin.

A clear glass spoon holding pale powder, surrounded by translucent peach, blush and sage sculptural folds and glossy droplets on ivory.

Zinc PCA

A skin-conditioning zinc salt that supports light hydration while helping oily, blemish-prone skin look less shiny.

Close-up of clear watery serum with small bubbles on a textured surface.

Concerns & Benefits

Your Concerns

1
Visible Pores
For enlarged-looking pores that make your complexion appear less refined.
2
Uneven Texture
For skin texture that looks rough or uneven.
3

How To Use

1After toner, dispense 2–3 drops into your palm.
2Apply the serum across your face and gently pat until absorbed. Leave it on.
3Follow with moisturizer. During the day, finish your routine with sunscreen.

Hands holding the open bottle and dropper above an outstretched palm.

Frequently asked questions

What visible concerns is this serum designed to address?

It is designed to visibly minimize the appearance of enlarged pores, improve the look of skin texture and brighten uneven-looking tone.

Keep learning

Customer reviews

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300 Reedle Shot Stick Pouch€8.88

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ISNTREE Hyper Niacinamide 20 Serum – 20 ml | Sleepy Hello

ISNTREE

Hyper Niacinamide 20 Serum

What it is: A lightweight leave-on facial serum designed to refine the look of enlarged pores, improve visible texture and brighten uneven-looking tone.

Visibly refined pores
Smoother, brighter-looking skin
Supportive hydration
Lightweight, fast-absorbing feel

Net weight: 20 ml

Hyper Niacinamide 20 Serum

20ml ·€9.00

Visibly refined pores

Smoother, brighter-looking skin

Supportive hydration

Lightweight, fast-absorbing feel

Main active: Niacinamide
Intensity: Advanced

PRODUCT DETAILS

It is suited to all skin types, with particular relevance to oily and acne-prone skin. The 20 ml dropper bottle keeps this targeted serum neatly within reach.

Learn more

GOES WELL WITH

100 Reedle Shot Stick Pouch€7.88

300 Reedle Shot Stick Pouch€8.88

30 Seconds Quick Bubble Mask LIFT€26.99

1025 Dokdo Sleeping Pack€14.98

2X Fresh Bam Balm To Foam€22.99

1025 Dokdo Cream€23.00

1025 Dokdo Pad€18.99

5α Control Clearing Cream€28.98

Focused care for visible pores, uneven texture and dull-looking tone, balanced with supportive hydration.

Refines the look of pores
Smooths visible texture
Brightens uneven-looking tone
Balances focus with hydration