It is best for shoppers looking for a lightweight first serum with a gentle, firmness-focused approach.

Klairs EGF Blue Youth Activating Drop bottle with dropper showing a blue serum drop on a white background

Klairs EGF Blue Youth Activating Drop official EGF repair serum graphic with bottle and blue serum bubbles

Official Klairs graphic explaining why skin needs EGF with blue water texture and molecule artwork

Official Klairs graphic showing how EGF repairs the look of post-blemish marks in three illustrated steps

Official Klairs before-and-after graphic about visible post-blemish marks over four weeks

Klairs EGF Blue Youth Activating Drop key ingredients graphic with blue dropper and ingredient callouts

Klairs EGF serum comparison graphic with bottle, blue bubbles, and texture notes

Klairs EGF Blue Youth Activating Drop how-to-use tips graphic with serum drop and pipette icons

Klairs EGF Blue Youth Activating Drop color variation guide showing blue and gray serum drops

Klairs recommended routine graphic featuring EGF Blue Youth Activating Drop with toner and cream steps

Klairs EGF Blue Youth Activating Drop ingredient list graphic with bottle, box, and INCI text

Klairs EGF Blue Youth Activating Drop bottle with dropper and blue serum on a white background

Klairs EGF Blue Youth Activating Drop bottle and dropper with a blue serum drop on a white background

Klairs EGF Blue Youth Activating Drop bottle beside black product box on a pale blue background

EINZELHEITEN

💙 50 ml: Kostenloser Versand & ein Gratisgeschenk (Blue Drop 10 ml + Blue Calming Cream 20 g)
💙 20 ml: Kostenloser Versand & ein Gratisgeschenk (Blue Calming Cream 20 g)

Vorgestellt von Song Of Skin (TikTok @songofskin)

1. Highlights
- Koreas EGF-Serum Nr. 1: Ein viraler Hit bei Olive Young, bekannt für seine hohe Wiederkaufsrate und den Verkauf einer Flasche alle 4 Sekunden.
- 3-Minuten-Sofortberuhigung: Schnelle Linderung für irritierte Haut, die perfekte Notfalllösung bei Rötungen & Akne.

- Erholung von Aknenarben: Zielt auf hartnäckige Makel und Pigmentierungen ab und verblasst sie, um einen klaren und ebenmäßigen Hautton wiederherzustellen.
- Schwereloses Erste-Schritt-Serum: Eine nicht klebrige, wasserbasierte Formel, die sofort einzieht – ideal für ölige und zu Akne neigende Haut.

2. Nutzenversprechen
- Ultimative Regeneration mit maximaler Stärke: Formuliert mit 10 ppm EGF – der höchsten von der koreanischen MFDS zugelassenen Konzentration – und bFGF, um eine widerstandsfähige Hautbarriere von innen heraus kraftvoll wiederherzustellen.
- Intensive Beruhigungskraft: Angereichert mit 1.000 ppm Guaiazulen bietet dieses natürliche Kräuterkraftpaket sofortige Linderung und tiefe Beruhigung für sensibilisierte Haut.
- Sauber & Sicher für alle: Eine 100 % parfümfreie, nicht komedogene Formel, die intensive Pflege gewährleistet, ohne die Poren zu verstopfen oder selbst die empfindlichste, zu Akne neigende Haut zu irritieren.

ANWENDUNG

Schritt 01. Für maximale Absorption 3-4 Tropfen direkt nach der Reinigung, vor dem Gesichtswasser, auftragen.
Schritt 02. Sanft in die Haut einklopfen, um das natürliche Regenerationsritual zu fördern.
Schritt 03. Profi-Tipp: Für eine konzentrierte Pflege bei hartnäckigen Unreinheiten ein Wattestäbchen verwenden.

INHALTSSTOFFE

Wasser, Butylenglykol, sh-Oligopeptid-1, sh-Polypeptid-1, Vaccinium Angustifolium (Heidelbeere) Fruchtextrakt, Lecithin, Sorbitansesquioleat, 1,2-Hexandiol, Caprylylglykol, PEG-60 hydriertes Rizinusöl, Glycerin, Chlorphenesin, Guaiazulen, Ethylhexylglycerin, Adenosin

FAQ

Q. What kind of serum is this?

A. This is an early anti-aging first serum designed to be used at night, right after cleansing and before toner.

Q. How do I use it?

A. Apply 3 to 4 drops to clean skin after cleansing, then let it absorb before moving on to the rest of your routine.

Q. What makes it different from a typical firming serum?

A. It combines EGF and bFGF peptides with guaiazulene and adenosine in a lightweight, watery formula that fits easily into a sensitive-skin routine.

Q. Is it fragrance-free?

A. Yes, this formula is fragrance-free.

Q. Who is it best for?

A. Sensitive-feeling skin, post-blemish look, early firmness care, and shoppers who want a lightweight blue first serum.

Review Highlights

Shoppers often mention the watery, essence-like texture and quick absorption.
The blue color and lightweight feel make it memorable in nighttime routines.
Many shoppers like it as a gentle first serum before heavier products.
Some shoppers who prefer richer serum textures may want to layer it with a moisturizer.

Best For / Not For

Best For

Sensitive-feeling skin wanting lightweight peptide care
Skin that looks stressed or uneven after blemishes
Night routines that start with a watery first serum
Shoppers who prefer fragrance-free skincare

Not For

Shoppers who want a rich, cushiony serum texture
Anyone looking for a leave-on exfoliating acid serum
Soy-sensitive shoppers who avoid lecithin

Ingredient Spotlight

EGF + bFGF Peptides

What it is: Two peptides used in a watery first-serum format.

Why it is here: Support the product's firmness-focused, well-aging identity.

Routine role: The main first-serum care story.

Guaiazulene

What it is: The blue-tone ingredient associated with Klairs Blue Line.

Why it is here: Gives the serum its signature blue identity and calming angle.

Routine role: Supports a sensitive-skin friendly blue routine.

Adenosine

What it is: A well-known skincare ingredient used for firmness-supporting care.

Why it is here: Complements the peptide story.

Routine role: Rounds out the night serum step.

Routine Pairing

Use as the first serum step after cleansing.
Apply 3 to 4 drops and let the watery texture absorb.
Follow with toner, serum, cream, or a simple moisturizer depending on your routine.
Use at night if you prefer a dedicated well-aging step.
Keep vitamin C or retinol-style routines separated if your skin is easily reactive.

Speichern Sie 66%

EGF Blue Youth Activating Tropfen

Q: Is there anything to note before use?

This formula contains lecithin, so shoppers with soy sensitivities should review the ingredient list carefully before use.

$9.99

$9.99 ~~$29.99~~ 66% OFF

Versand wird beim Bezahlvorgang berechnet.

Das Dear Klairs EGF Blue Youth Activating Drop ist ein leichtes Serum mit EGF-Peptiden und Guaiazulen, das die Haut glatter, ruhiger und ebenmäßiger aussehen lässt. Entwickelt für empfindliche Haut und sichtbar gestresste, zu Unreinheiten neigende Haut. Vorgestellt von Song Of Skin (TikTok @songofskin).

Entdecken Sie die Calm Barrier Routine für eine einfache Klairs-Routine, die für empfindliche und sichtbar gestresste Haut entwickelt wurde.

Option: 20 ml

50 ml 20 ml 10 ml

FEATURED IN

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Aktionsalarm

EINZELHEITEN

ANWENDUNG

INHALTSSTOFFE

Zahlung & Sicherheit

Ihre Zahlungsinformationen werden sicher verarbeitet. Wir speichern keine Kreditkartendaten und haben auch keinen Zugriff auf Ihre Kreditkarteninformationen.

FAQ

Q. What kind of serum is this?

A. This is an early anti-aging first serum designed to be used at night, right after cleansing and before toner.

Q. How do I use it?

A. Apply 3 to 4 drops to clean skin after cleansing, then let it absorb before moving on to the rest of your routine.

Q. What makes it different from a typical firming serum?

A. It combines EGF and bFGF peptides with guaiazulene and adenosine in a lightweight, watery formula that fits easily into a sensitive-skin routine.

Q. Is it fragrance-free?

A. Yes, this formula is fragrance-free.

Q. Who is it best for?

A. Sensitive-feeling skin, post-blemish look, early firmness care, and shoppers who want a lightweight blue first serum.

Review Highlights

Shoppers often mention the watery, essence-like texture and quick absorption.
The blue color and lightweight feel make it memorable in nighttime routines.
Many shoppers like it as a gentle first serum before heavier products.
Some shoppers who prefer richer serum textures may want to layer it with a moisturizer.

Best For / Not For

Best For

Sensitive-feeling skin wanting lightweight peptide care
Skin that looks stressed or uneven after blemishes
Night routines that start with a watery first serum
Shoppers who prefer fragrance-free skincare

Not For

Shoppers who want a rich, cushiony serum texture
Anyone looking for a leave-on exfoliating acid serum
Soy-sensitive shoppers who avoid lecithin

Ingredient Spotlight

EGF + bFGF Peptides

What it is: Two peptides used in a watery first-serum format.

Why it is here: Support the product's firmness-focused, well-aging identity.

Routine role: The main first-serum care story.

Guaiazulene

What it is: The blue-tone ingredient associated with Klairs Blue Line.

Why it is here: Gives the serum its signature blue identity and calming angle.

Routine role: Supports a sensitive-skin friendly blue routine.

Adenosine

What it is: A well-known skincare ingredient used for firmness-supporting care.

Why it is here: Complements the peptide story.

Routine role: Rounds out the night serum step.

Routine Pairing

Use as the first serum step after cleansing.
Apply 3 to 4 drops and let the watery texture absorb.
Follow with toner, serum, cream, or a simple moisturizer depending on your routine.
Use at night if you prefer a dedicated well-aging step.
Keep vitamin C or retinol-style routines separated if your skin is easily reactive.

At a glance

EGF Blue Youth Activating Drop

Targets Texture, early firmness, post-blemish look

Skin feel Watery, lightweight, fast-absorbing

Routine step First serum, after cleansing

Formula note Fragrance-free, contains lecithin

Proof points

Sensitive-skin peptide care, in clear facts

4.9

Average rating across 451 verified reviews.

Fragrance-Free · Vegan

Formulated for sensitive-skin routines.

EGF + bFGF

Two peptides in a watery first-serum format.

3 cards now fill the full width with no dead space.

Why this serum

A calm, watery first step for stressed skin

Watery texture

Absorbs quickly with no heavy finish, easy to layer.

Peptide care

EGF and bFGF give the formula its firmness-focused angle.

Calming blue tone

Guaiazulene gives the signature blue and a soothing story.

Night-routine friendly

Use as the first step at night, before toner and moisturizer.

Skin fit

Best for / Not for

Best for

Sensitive-feeling skin wanting lightweight peptide care.
Skin that looks stressed or uneven after blemishes.
Night routines that start with a watery first serum.
Shoppers who prefer fragrance-free skincare.

Not for

Those who want a rich, cushiony serum texture.
Anyone looking for a large-volume serum.
Soy-sensitive shoppers who avoid lecithin.

Key ingredients

Peptides, calming blue care, firmness support

The ingredient story centers on peptides, blue calming care, and a watery first-serum step for resilient-looking skin.

sh-Oligopeptide-1

EGF

Defines the serum's early anti-aging, peptide-care positioning.

sh-Polypeptide-1

bFGF

A supporting peptide paired with EGF in this lightweight formula.

Calming blue tone

Guaiazulene

Gives the product its blue identity and a calming angle.

Firmness support

Adenosine

A well-known ingredient used for firmness-supporting care.

Build your routine

Prep, treat, and seal

Large line icons keep the routine consistent across products without depending on matching photography.

Step 1 · Prep

Cleanse

Start with a gentle cleanser so the watery serum absorbs into clean skin.

Step 2 · Treat

Apply Blue Drop

Use 3 to 4 drops as your first treatment step, then let it absorb.

Step 3 · Seal

Moisturize

Follow with toner and moisturizer to keep the routine balanced.

Creator videos

See Blue Drop in action

Watch creator videos showing the watery serum texture, first-serum routine step, and how EGF Blue Youth Activating Drop layers into daily Blue Line routines.

How it works

The mechanism graphics, full size

The full-width mechanism guide explains how Blue Drop fits into a focused peptide and blue calming routine.

Klairs Blue Drop how EGF repairs post-blemish marks graphic

How it works

EGF peptide care for post-blemish skin

The formula is positioned for skin that needs support after blemishes, with peptide care and a watery, fast-absorbing feel.

Results

Before and after, full size

The verified four-week graphic gets its own contain-fit module instead of being cropped inside a small card.

Post-blemish look

Visibly more even after 4 weeks

Supports skin that looks uneven after blemishes, in a lightweight format made for sensitive routines.

Verified claim · consented imagery

Klairs Blue Drop visibly fades post-blemish marks in 4 weeks graphic

FAQ

Questions shoppers ask

What kind of serum is this?

An early anti-aging first serum designed for night use, right after cleansing and before toner.

How do I use it?

Apply 3 to 4 drops to clean skin, let it absorb, then continue with the rest of your routine.

What makes it different from a typical firming serum?

It pairs EGF and bFGF peptides with guaiazulene and adenosine in a lightweight, watery formula made for sensitive skin.

Is it fragrance-free?

Yes, this formula is fragrance-free.

Anything to note before use?

It contains lecithin, so shoppers with soy sensitivities should review the ingredient list first.

Why does the blue color vary?

The blue color comes from guaiazulene, a naturally derived ingredient. Natural color variation may occur, and the product quality is not affected.

Customer review evidence

I used the whole bottle happily! I loved that it was more of an essence texture and I loved the blue color...

This Midnight Blue Youth Activating Drop has helped my skin so much...

This is a blue tinted serum that is lightweight and has a water like texture...

The Klairs midnight blue youth activating drops are a great part of my skincare...

I have been a huge fan of Dear, Klairs...

I have very sensitive acne prone skin and this helps to visibly calm everything!

Routine positioning map

Where EGF Blue Youth Activating Tropfen fits in a Klairs routine

Use this map to compare EGF Blue Youth Activating Tropfen by skin concern, routine weight, and next-step pairing.

Top: targeted care Bottom: hydration and comfort Left: daily essentials Right: focused treatment steps

Daily prepCleanse, tone, mist, and simple first layers.

Targeted careSerum, pad, vitamin, and blue-line focused steps.

Hydration baseLightweight daily comfort and flexible layering.

Routine setCream, mask, and complete routine pairings.

Unscented Toner

Vitamin PDRN

Blue Cream

EGF Blue Youth Activating Tropfen Targeted bounce

Blue calming and resilient-looking care

A focused blue routine step

EGF Blue Youth Activating Tropfen fits into blue calming and resilient-looking care routines alongside daily hydration, targeted care, and complete Klairs routine sets.

1Best for: Skin that looks stressed, sensitized, tired, or ready for a more focused calming routine.
2Routine role: Layer after toner or toner pads when you want a targeted blue step before moisturizer.
3Pair with: Pair with EGF Blue Calming Toner Pad, Blue Calming Mist, or Midnight Blue Calming Cream.

PrepCleanse, tone, or mist depending on your routine start.

TreatLayer the product where its texture and role fit best.

FinishSeal with cream, sunscreen, or a routine set step.

Klairs routine match character holding skincare products

Find your Klairs routine match Explore Klairs picks by hydration, soothing, barrier, glow, texture, and after-sun routine needs. Start the guide