DearKlairs EGF Serum Blue Youth Activating Drop 1.69 oz — 10ppm EGF, calming guaiazulene

DearKlairs EGF Serum — Blue Youth Activating Drop is a lightweight, blue-hued peptide serum formulated with 10ppm EGF and calming guaiazulene to help reduce post-blemish marks and soothe irritated skin.

This serum combines epidermal growth factor (EGF) and fibroblast growth factor (FGF) at dermatologist-tested strengths to support the skin’s natural renewal process while keeping texture feather-light and non-sticky. Clinically evaluated for quick calming effects and improved appearance of post-blemish marks over four weeks, the formula is fragrance-free, non-comedogenic, and built to layer under other treatments or moisturizers.

How does this serum help reduce post-blemish marks?

The Blue Youth Activating Drop uses EGF at the maximum permitted concentration in Korea (10ppm) together with FGF to encourage the skin’s recovery cycle. In a consumer study, users saw a 14.75% improvement in post-blemish marks after two weeks and a 23.21% improvement after four weeks of daily use.

• 10ppm EGF concentration to support cellular renewal
• Complementary FGF to assist skin surface recovery
• Study-backed improvement numbers at two and four weeks
• Fragrance-free to reduce the risk of irritation on sensitive skin

Will this serum irritate sensitive or acne-prone skin?

Formulated to be gentle, the serum is dermatologist-tested and shown to reduce visible irritation quickly. It’s non-comedogenic and suitable for oily, combination, acne-prone, and reactive skin types, offering active support without the harshness of strong exfoliants.

• 46.53% reduction in visible irritation measured in three minutes
• Non-comedogenic: safe for acne-prone skin
• No added fragrance or artificial color — calming blue comes from guaiazulene
• Lightweight texture that layers well with other treatments

What does the texture and application feel like?

The serum is a water-light, fast-absorbing drop that leaves no sticky residue and behaves like a first-step treatment after cleansing. Because it sinks in quickly, you can follow with toner, moisturizer, or actives without pilling.

• Weightless formula absorbs in seconds for easy layering
• Zero-residue finish compatible with morning and evening routines
• Use 3–4 drops on bare skin as the first step after cleansing
• Pipette delivery for precise dosing and hygienic application

Why is the serum blue and what ingredients calm redness?

The signature blue tint comes from 1,000ppm guaiazulene, a naturally derived calming ingredient that helps visibly soothe redness. The blue color is not from artificial dyes; it signals the presence of a calming complex designed to complement the growth-factor blend.

• 1,000ppm guaiazulene provides a natural calming effect
• No synthetic coloring — color derived from functional ingredient
• Pairs with EGF/FGF to support smoother-looking texture
• Dermatologist-tested calming benefits in minutes

Who this is for: DearKlairs Blue Youth Activating Drop is aimed at anyone seeking a gentle, clinically informed peptide serum to target post-blemish marks and calm visible irritation without heavy textures or strong fragrances. It’s well suited for sensitive, reactive, oily, combination, and acne-prone skin types that want a lightweight, layerable step to support surface renewal and reduce redness while maintaining a simple routine.

Ingredients

Water (Aqua), Butylene Glycol, sh-Oligopeptide-1, sh-Polypeptide-1, Vaccinium Angustifolium (Blueberry) Fruit Extract, Lecithin, Sorbitan Sesquioleate, 1,2-Hexanediol, Caprylyl Glycol, PEG-60 Hydrogenated Castor Oil, Glycerin, Chlorphenesin, Guaiazulene, Ethylhexylglycerin, Adenosine