Where does it go in my routine, and how should I apply it?

Apply it after preparing your skin with tonic. Pump the serum 1–2 times, tap it over your face and neck, then cover your skin with your hands to encourage absorption.

Does the serum leave a sticky finish?

No. It has a lightweight, moisture-replenishing feel without a sticky finish.

Does the formula contain ethanol or rose flower oil?

Yes. The ingredient declaration includes ethanol, which ISOI identifies as plant-fermented, and Damask rose flower oil.

Which pore-care botanicals are highlighted in the formula?

Chestnut shell extract and Damask rose flower oil are highlighted in its pore- and elasticity-care story. The formula also declares willow bark extracts and Centella asiatica extract.

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ISOI

Pore Tightening Control Serum

Q: Is it listed as suitable for sensitive skin?

Yes. It is listed for all skin types, including sensitive skin.

What it is: A lightweight facial serum that helps balance excess sebum and moisture, refine the look of pores and support skin elasticity without a sticky finish.

Balances excess oil and moisture
Refines the look of visible pores
Lightweight, non-sticky feel
Supports skin elasticity

Net weight: 50 ml

Pore Tightening Control Serum

50ml ·$35.99 USD

Balances excess oil and moisture

Refines the look of visible pores

Lightweight, non-sticky feel

Supports skin elasticity

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

Hello, balance. This lightweight facial serum helps manage excess sebum while balancing oil and moisture. It also exfoliates dead skin cells and helps refine the look of visible pores, bringing oil and texture care into one focused formula.

Its care goes beyond surface oil. The serum supports skin elasticity and helps improve the appearance of pores that look less firm. Chestnut shell extract and Damask rose flower oil are the highlighted pairing in its pore- and elasticity-focused formula.

The feel is light, and the formula replenishes moisture without a sticky finish. It’s a comfortable option when you want hydration but would rather skip a tacky after-feel.

The serum is listed for all skin types, including sensitive skin. Its combination of sebum care, moisture replenishment and pore-focused support gives it a clear place in a routine centered on balance.

Learn more

GOES WELL WITH

5α Control Clearing Cream$31.99 USD

2-Step Greenery Calming Ampule Mask$15.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

2X Fresh Bam Balm To Foam$24.99 USD

2X Fresh Bam Balm To Foam (+Special Gift)$20.99 USD

30 Days Tea Tree Calming Glow Luminous Ampoule Mask$28.99 USD

Explore balanced sebum care, refined-looking pores, elasticity support and lightweight moisture.

Oil-Moisture Balance
Refined-Looking Pores
Elasticity Care
Light, Comfortable Hydration

Key Ingredients

Pleated lavender paper fan with a coral-red edge on a pale blush surface.

Adenosine

A skin-conditioning ingredient commonly used to help skin look smoother and soften the appearance of fine lines.

Glycerin

A classic humectant that helps skin hold water and feel softer and smoother.

Centella Asiatica

Helps soothe visible redness and support the skin barrier.

Curled pale wood-like sheets with clear droplets arranged on a warm ivory surface under soft studio light.

Salix Alba (Willow) Bark Extract

A white willow bark extract used to condition and soothe skin while supporting a fresh, refined-looking finish.

Turquoise glass serum bottle with a silver cap centered on a white background.

Concerns & Benefits

Your Concerns

1
Excess Oil
For skin that can look or feel oilier than you’d like.
2
Visible Pores
For pores that appear more noticeable alongside excess sebum or dead skin buildup.

How To Use

1After preparing your skin with tonic, pump the serum 1–2 times.
2Tap it over your face and neck.
3Cover your skin with your hands to encourage absorption.

Open turquoise pump bottle on a pale aqua surface with white serum dripping down the bottle and pooled beside it.

Frequently asked questions

What concerns is this serum designed to address?

It helps manage excess sebum, balance oil and moisture, exfoliate dead skin cells, support elasticity and refine the appearance of pores.

Keep learning

Customer reviews

Frequently Bought Together

Buy these products together

This itemPore Tightening Control Serum$35.99 USD

5α Control Clearing Cream$31.99 USD

2-Step Greenery Calming Ampule Mask$15.99 USD

Total price: $83.97 USD

This itemPore Tightening Control Serum$35.99 USD

5α Control Clearing Cream$31.99 USD

2-Step Greenery Calming Ampule Mask$15.99 USD

Total price: $83.97 USD

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150 ml$11.99 USD

ROUND LAB

1025 Dokdo Lotion

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PO:DL

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130 ml$20.99 USD

SOME BY MI

30 Days Tea Tree Calming Glow Luminous Ampoule Mask

Close-fitting ampoule care for calm-looking, balanced and freshly hydrated skin.

10 masks × 25 g$28.99 USD

ISOI Pore Tightening Control Serum | Sleepy Hello

ISOI

Pore Tightening Control Serum

What it is: A lightweight facial serum that helps balance excess sebum and moisture, refine the look of pores and support skin elasticity without a sticky finish.

Balances excess oil and moisture
Refines the look of visible pores
Lightweight, non-sticky feel
Supports skin elasticity

Net weight: 50 ml

Pore Tightening Control Serum

50ml ·$35.99 USD

Balances excess oil and moisture

Refines the look of visible pores

Lightweight, non-sticky feel

Supports skin elasticity

Main active: No primary active
Intensity: Supportive

PRODUCT DETAILS

The feel is light, and the formula replenishes moisture without a sticky finish. It’s a comfortable option when you want hydration but would rather skip a tacky after-feel.

Learn more

GOES WELL WITH

5α Control Clearing Cream$31.99 USD

2-Step Greenery Calming Ampule Mask$15.99 USD

100 Reedle Shot Stick Pouch$8.09 USD

1025 Dokdo Cleanser$11.99 USD

1025 Dokdo Lotion$14.99 USD

2X Fresh Bam Balm To Foam$24.99 USD

2X Fresh Bam Balm To Foam (+Special Gift)$20.99 USD

30 Days Tea Tree Calming Glow Luminous Ampoule Mask$28.99 USD

Explore balanced sebum care, refined-looking pores, elasticity support and lightweight moisture.

Oil-Moisture Balance
Refined-Looking Pores
Elasticity Care
Light, Comfortable Hydration