Midnight Blue Youth Activating Drop

Dear, Klairs

Midnight Blue Youth Activating Drop

Midnight Blue Youth Activating Drop

Dear, Klairs

midnight-blue-youth-activating-drop

Serum

9706812703013

Morning or Evening?

Morning
Evening
Both

How often will you use this product?

Everyday
Every other day
Every 3 days
Every 4 days
Every 5 days
Every 6 days
Once a week
Twice a week
On specific days
As needed
On rotation

Notes

Add to Routine
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Compatibility Score

0%

Microbiome
Ingredients
Biological
Environment
Lifestyle

How It Fits Into Your Skincare Routine

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Highlights

WHAT IS IT?

Serum with 16 ingredients

FEATURES

Highly concentrated night serum helps improve rough texture, reduce visible skin troubles, and refine excess oil production.

BEST FOR

All skin types

CHECKS

Free of alcohol, parabens, artifical colors, fragrances

Who Is It For?

Generally For Adults (18+) And Both Men And Women

What Does It Help With?

Improving Complexion Encouraging Youthful Appearance Elasticity Pigmentation And Fine Lines

Budget

Afffordable

How To Use

Which routine should it be used in?

Morning
Evening
 
Cleanse
Tone
Eyecare
Serum
Moisturize
Suncare
 

Instructions:

After cleansing and before using the toner, apply 3-4 drops over the face and gently pat to promote absorption.

Key Information

Vegan
Cruelty-free
Sensitive-safe
Non-comedogenic
Hypoallergenic
Microbiome-safe
Preservative-free
Eco-friendly
Pregnancy-safe
Oil-free

What Dear, Klairs Says

Product Description:

The highly concentrated Midnight Blue Youth Activating Drop adds radiance and luminosity to the skin to substantially improve the complexion and stimulates the skin to encourage a youthful appearance. It also accelerates the skin's renewal process, which helps to improve elasticity, appearance of pigmentation and fine lines.

About the Brand:

Dear, Klairs is a Korean skincare brand that specializes in gentle, effective products for sensitive skin. With a focus on clean formulations and soothing ingredients, this brand offers a range of essentials that calm and nourish even the most delicate skin types. Discover the perfect balance of simplicity and efficacy with Dear, Klairs.

Ingredients Overview

Ingredients List

Water, 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

Key Ingredients

sh-Oligopeptide-1, sh-Polypeptide-1, Vaccinium Angustifolium (Blueberry) Fruit Extract, Guaiazulene, Adenosine

Ingredients Details

12 Hexanediol

Common Name(s): 12 hexanediol

DESCRIPTION

What It Does: Delivers targeted skin-conditioning or bioactive benefits through a specific mechanism of action suited to the formulation's intended purpose.

Why It's Used: Specialty actives address specific skin concerns through targeted molecular mechanisms, providing efficacy beyond what base formulation ingredients alone can achieve.

How It Works: The bioactive compound interacts with specific molecular targets in skin cells or the extracellular matrix โ€” enzymes, receptors, structural proteins, or signaling molecules โ€” triggering beneficial biological responses.

Typically Found In: Serums,treatments,moisturizers,specialty products

TECHNICAL DETAILS

Primary Category: Specialty actives

Secondary Functions: Skin-conditioning,anti-aging

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.01โ€“5%

SOURCING & ETHICS

Vegan Status: Yes

Halal Status: Yes

Source Notes: Specialty active ingredient; check individual sourcing for vegan status.

SKIN COMPATIBILITY

Irritancy Rating: 1899-12-31 00:00:00 -0800

Sensitivity Concerns: Low sensitization potential at recommended use concentrations.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Well-characterized cosmetic ingredient with established safety profile. generally non-irritating at typical use concentrations. suitable for leave-on and rinse-off cosmetics.

Works Well With: Niacinamide,hyaluronic acid,vitamin c,peptides

Avoid Combining With: Incompatible with oxidizing agents; check ph stability

SCIENTIFIC NOTE

Specialty actives typically work through enzyme inhibition (e.g., tyrosinase inhibition for brightening, mmp inhibition for anti-aging), receptor activation (e.g., retinoid receptors, ppar-ฮณ for barrier genes), or transcription factor modulation (e.g., nrf2 for antioxidant gene upregulation). structure-activity relationships determine potency and selectivity.

Last Verified: Cosing eu database; pcpc cosmetic ingredient safety reviews; ingredient-specific safety and efficacy literature

Primary Sources: 2025-01-15

Butylene Glycol

Common Name(s): 1,3-butanediol,bg,1,3-butylene glycol

CAS Number: 107-88-0

DESCRIPTION

What It Does: Provides humectant hydration and active ingredient solubilization with excellent skin feel.

Why It's Used: Preferred glycol humectant in premium and k-beauty formulations for superior skin feel vs propylene glycol with equivalent functionality.

How It Works: Two hydroxyl groups at 1,3-positions provide water binding and solvent activity. better tolerated than propylene glycol with minimal sensitization risk. 4-carbon backbone provides slightly greater hydrophobic character enabling dissolution of less polar actives vs pg.

Typically Found In: Toners,essences,serums,k-beauty formulas

TECHNICAL DETAILS

Primary Category: Functional ingredient โ€“ glycol humectant

Secondary Functions: Tewl reduction,skin plumping

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 1%โ€“10%

SOURCING & ETHICS

Vegan Status: Yes โ€“ synthetic

Halal Status: Yes

Source Notes: Synthetic or naturally derived. excellent aqueous solubility.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 โ€“ very low

Comedogenicity Rating: 0/5 โ€“ non-comedogenic

Sensitivity Concerns: Non-irritating; suitable for all skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

K-beauty's preference for butylene glycol over propylene glycol is driven by two factors: bg's superior skin feel (less tacky than pg's higher viscosity) and its lower sensitization potential (1,3-bg has better spatial distribution of hydroxyl groups that reduces protein interaction vs pg's 1,2-position oh groups).

Last Verified: Cosing database,cir safety assessment

Primary Sources: 2026-03-12

Caprylyl Glycol

Common Name(s): 1,2-octanediol,octanediol,sensiva sc 50

CAS Number: 1117-86-8

DESCRIPTION

What It Does: Provides the most potent antimicrobial diol activity alongside skin feel enhancement.

Why It's Used: Premium antimicrobial diol โ€” caprylyl glycol's c8 chain provides the strongest membrane-disrupting antimicrobial activity of common diol preservative boosters with unique skin-feel enhancement.

How It Works: C8 1,2-diol: c8 chain length provides strongest bacterial and fungal membrane disruption of common diols. emollient skin feel improvement from c8 chain length interaction with skin surface. active at lower concentrations than shorter-chain diols. synergistic with ethylhexylglycerin.

Typically Found In: Natural preservation systems,skin feel enhancement

TECHNICAL DETAILS

Primary Category: Functional ingredient โ€“ antimicrobial humectant

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.1%โ€“1%

SOURCING & ETHICS

Vegan Status: Yes โ€“ synthetic

Halal Status: Yes

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 โ€“ very low

Comedogenicity Rating: 0/5 โ€“ non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile at recommended concentrations. ewg score: 1โ€“2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Caprylyl glycol's antimicrobial potency follows the chain-length dependent membrane activity of fatty acids: c8 is the optimal chain length for membrane disruption (same as caprylic acid's antimicrobial optimum), providing maximum membrane integration without the skin sensitisation associated with longer chain lengths. this chain-length pharmacophore relationship is why c8 > c6 > c5 in diol antimicrobial potency despite identical head group chemistry.

Last Verified: Cosing database,schรผlke sensiva sc 50 technical data,cir safety assessment

Primary Sources: 2026-03-12

Lecithin

Common Name(s): Soy lecithin,sunflower lecithin,phosphatidylcholine complex

CAS Number: 8002-43-5

DESCRIPTION

What It Does: Provides natural phospholipid emulsification with barrier-compatible delivery and liposome-forming properties.

Why It's Used: The most biologically authentic emulsifier โ€“ identical to cell membrane composition providing barrier-compatible delivery and liposome formation unavailable from synthetic emulsifiers.

How It Works: Phosphatidylcholine (pc), phosphatidylethanolamine (pe), phosphatidylinositol (pi) mixture provides hlb 7-12 for o/w emulsification. forms liposomal bilayers for active encapsulation. pc/pe/pi composition mirrors cell membrane for barrier-compatible delivery.

Typically Found In: Natural cosmetics,liposomal products,barrier repair,penetration-enhanced formulas

TECHNICAL DETAILS

Primary Category: Functional ingredient โ€“ natural phospholipid emulsifier

Secondary Functions: Skin conditioning

Application Areas:

Facial Skincare

Body Care

Hair Care

Beard Care

Color Cosmetics (Makeup)

Dietary/Oral Supplements

Typical Concentration Range: 0.5%โ€“10%

SOURCING & ETHICS

Vegan Status: Conditional โ€“ soy lecithin (vegan); egg lecithin (not vegan)

Halal Status: Conditional โ€“ soy (halal); egg (verify)

Source Notes: Commercially produced for cosmetic use. verify vegan/halal status with supplier.

SKIN COMPATIBILITY

Irritancy Rating: 1/5 โ€“ very low

Comedogenicity Rating: 0/5 โ€“ non-comedogenic

Sensitivity Concerns: Well-tolerated by most skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Good safety profile at recommended concentrations. ewg score: 1โ€“2.

Works Well With: Standard skincare actives

Avoid Combining With: No known significant incompatibilities

SCIENTIFIC NOTE

Lecithin's phospholipid composition mirrors the composition of the stratum corneum's own lamellar bodies that deliver barrier lipids to the skin surface. this structural mimicry allows lecithin-based delivery systems to integrate seamlessly with the barrier lipid structure, exploiting the same transport pathway the skin uses for its own lipid secretion.

Last Verified: Cosing database,cir safety assessment

Primary Sources: 2026-03-12