23.21% MARKS FADED^*EGF + FGF 10 PPM^**GUAIAZULENE 1,000 PPM^**NON-COMEDOGENIC TESTEDVEGAN

Dear, Klairs EGF Blue Youth Activating Drop bottle with a blue dropper

23.21%^* faded marks

IN 4 WEEKS^*

THE BLUE EGF SERUM FOR POST-BLEMISH MARKS

Visibly faded marks in 4 weeks.^*

4.4^† · 1514 ratings on

As of 2026-11-11

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Blue from guaiazulene, not dye · Gentle for sensitive skin · Made in Korea

SEEN ON TIKTOK & INSTAGRAM

See it on real skin.

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CLINICALLY TESTED · 4 WEEKS^*

Marks fade, skin looks firmer.^*

23.21%^*post-blemish marks look improved

7.37%^***crow's feet look improved

5.76%^***more skin elasticity

A Dear, Klairs tester's cheek before use — Before

WHY IT WORKS

Blue EGF

10 PPM^**

EGF and FGF with calming guaiazulene, in a watery drop.

EGF 10ppm

Fades the look of marks

Guaiazulene 1,000ppm

Calms the look of redness

FGF 10ppm

Firmer, smoother-looking skin

THE AMAZON VERDICT

“It’s like magic water.”

Read on

Second Purchase

I upgraded to the bigger bottle, and I’ll keep repurchasing. My skin is brighter in general … No annoying fragrance and is very gentle on the skin. It’s like magic water.

Riri · Aug 17, 2026

Staple

This is a must try EGF serum from Dear Klairs,if you have sensitive skin!!

S. H. · Sep 7, 2026

A must try for sensitive skin

A must try EGF serum by Dear Klairs,if you have skin that's sensitive to actives! Very soothing!

JT · Sep 23, 2026

GENTLE BY DESIGN

Calming formula. Visible results.

46.53% less visible irritation⁺No reactions in 20 of 20 testers^*Non-comedogenic testedBlue from guaiazulene, not dyeAdenosine

Fade the look of marks, gently.

EGF Blue Youth Activating Drop 30 ml4.4