ProtoClinical k-beauty Isntree Hyper Retinol EX1.0 Serum 20ml shown as a single slim gray bottle centered upright with soft side accents on a white background
Isntree

Isntree Hyper Retinol EX1.0 Serum 20ml

$28.10
Helps soften fine lines Supports firmer-looking skin Smooths rough texture Promotes a refined surface Targets early well-aging concerns
Retinol EX 1% high-performance well-aging serum helps reduce the appearance of fine lines and wrinkles.
A night serum for skin that wants smoother texture and a firmer, more refined look.
100% authentic

Sourced direct · batch code

1% Retinol Complex Well-Aging Care Night Serum
retinol
Isntree Hyper Retinol EX1.0 Serum 20ml
Isntree Hyper Retinol EX1.0 Serum 20ml Default Title
$28.10
Clinically proven actives Dermatologist tested 100% authentic Korean Cruelty-free

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retinol

Retinol converts to retinoic acid inside the skin, where it binds to nuclear receptors that regulate gene expression for cell turnover and collagen production. In this serum, Retinol targets fine lines and wrinkles, delivering softens the look of fine lines with consistent use with consistent use.

Retinol
accelerates cell turnover and stimulates collagen synthesis for smoother, firmer skin
Texture

Lightweight, absorbing serum

All Skin Types Fine Lines and Wrinkles
Hover the swatch: it ripples like water

How to use

1

Use in the evening after toner.

2

Apply a small amount over the face, avoiding the immediate eye area.

3

Follow with moisturizer.

4

Start slowly and increase frequency as tolerated.

5

Wear sunscreen daily.

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Ingredients

Retinol-focused well-aging care helps refine texture and soften visible line concerns.

Retinol converts to retinoic acid inside the skin, where it binds to nuclear receptors that regulate gene expression for cell turnover and collagen production. Unlike prescription retinoids that work immediately (and irritate), retinol converts gradually, offering a sustained effect with less downtime. The compounding effect means texture, fine lines, and tone all improve progressively over 8 to 12 weeks.

The detail

Specs & details

FormatLightweight serum
SizeDefault Title
Skin typesAll Skin Types
Country of originSouth Korea
Before you add to cart

Questions & answers

After cleansing and toning, before moisturizer. Serums deliver actives most effectively on freshly prepped skin.
Yes. Apply from thinnest to thickest consistency and allow each layer to absorb before the next.
Retinol accelerates cell turnover and stimulates collagen synthesis for smoother, firmer skin. Consistent daily use is key to seeing the full benefits.
Serums have a higher concentration of targeted actives than essences and a lighter consistency than most ampoules. They deliver the most potent treatment in your routine.
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Isntree
About the brand

OriginSeoul, KR
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