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Ingredient · INCI listed

Ectoin

Ectoin is an extremolyte — a natural compound produced by bacteria living in harsh environments like salt flats and deserts. In skincare, it helps cells resist environmental stressors (UV, heat, pollution) by stabilizing cell membranes and protein structures.

Evidence — Promising
Data summary
Products containing
33
Most common in
10 products
serums
Typical pairing
Hyaluronic Acid
Evidence level
Promising. Clinical evidence for protection against UV-induced damage, pollution effects, and skin aging markers. Effective at 0.5-2%. Emerging as a signature ingredient in environmental-defense serums, particularly from European brands.
View 33 products with ectoin →
Where it shows up

ectoin across the catalog.

33 products with ectoin

#1 Alpha-H Hyaluronic 8 Super Serum 50ml frosted glass bottle with airless pump
Alpha-H
Hyaluronic 8 Super Serum
Layered Hydration MVP
87/100 $65.00
#2 La Roche-Posay Hyalu B5 Suractivated Anti-Aging Face & Neck Cream in a refillable airless jar
La Roche-Posay
Hyalu B5 Suractivated Anti-Aging Face & Neck Cream
Derm Office Staple
86/100 $54.99
#3 Allies of Skin Multi Peptides & GF Advanced Lifting Serum 30ml frosted glass bottle
Allies of Skin
Multi Peptides & GF Advanced Lifting Serum
Peptide Powerhouse
85/100 $152.00
#4 Laneige Cica Sleeping Mask in a green jar
Laneige
Water Sleeping Mask Cica
Sensitive Skin Overnight Rescue
84/100 $35.00
#5 Anua 3 Ceramide Panthenol Moisture Barrier Cream in a white jar with minimalist design
Anua
3 Ceramide Panthenol Moisture Barrier Cream
K-Beauty Barrier Builder
84/100 $20.00
#6 SKIN1004 Centella Teca Cream 75mL tube with white and green branding
SKIN1004
Centella Teca Cream
K-Beauty Cica-Bright Hybrid
83/100 $20.00
#7 Hydrinity RetaXome Daily Retinal Hydrator 1 fl oz pump bottle
Hydrinity
RetaXome Daily Retinal Hydrator
Luxury Retinal Hybrid
83/100 $145.00
#8 Dr. Dennis Gross All-Physical Lightweight Wrinkle Defense SPF 30 1.7oz tube
Dr. Dennis Gross Skincare
All-Physical Lightweight Wrinkle Defense SPF 30
Derm-Grade Mineral SPF
83/100 $46.00
#9 Hero Cosmetics Force Shield Superfine Sunscreen SPF 30 in a white tube
Hero Cosmetics
Force Shield Superfine Sunscreen SPF 30
Acne-Proof Daily SPF
82/100 $19.99
#10 Dieux Skin Deliverance Serum in opaque glass bottle with pipette dropper.
Dieux Skin
Deliverance Serum
Barrier-First Soother
82/100 $85.00
#11 Supergoop! Protec(tint) Daily SPF Tint SPF 50 clear squeeze tube with tinted sunscreen
Supergoop!
Protec(tint) Daily SPF Tint SPF 50
The Tinted SPF That Took 17 Years
81/100 $44.00
#12 The Ordinary PHA 5% Exfoliating Lip Serum 15 mL bottle with doe-foot applicator
The Ordinary
PHA 5% Exfoliating Lip Serum
Overnight Flake Eraser
81/100 $8.50
#13 Bioderma Photoderm Aquafluid SPF 50+ sunscreen in a slim white tube with blue and orange
Bioderma
Photoderm Aquafluid SPF 50+
European Pharmacy MVP
80/100 $27.50
#14 Hero Cosmetics Force Shield Superbeam Sunscreen SPF 30 in a white tube with green accents
Hero Cosmetics
Force Shield Superbeam Sunscreen SPF 30
Acne-Friendly Glow Screen
80/100 $19.99
#15 Glass dropper bottle of Dr. Whitney Bowe Beauty P46 Peptide + HA Plumping Serum
Dr. Whitney Bowe Beauty
P46 Peptide + HA Plumping Serum
Peptide Plumping Flagship
80/100 $92.00
#16 Dr. Dennis Gross DermInfusions Fill + Repair Serum 1oz frosted glass dropper bottle
Dr. Dennis Gross Skincare
DermInfusions Fill + Repair Serum
Peptide Hydration Serum
80/100 $85.00
#17 Laneige Cream Skin Zincpep Toner & Gel Moisturizer in mint-green bottle with pump
Laneige
Cream Skin Zincpep Toner & Gel Moisturizer
Oily Skin's K-Beauty Answer
79/100 $36.00
#18
Rhode
Rhode
Glazing Mist
On-the-Go Glow Pick
79/100 $30.00
#19 Anua 8 Hyaluronic Acid Moisturizing Gentle Gel Cleanser 150ml tube with minimalist white packaging
Anua
8 Hyaluronic Acid Moisturizing Gentle Gel Cleanser
Hydration-First Cleanser
79/100 $15.00
#20 Anua Azelaic Acid 3 Cica Skin Clarifying Toner 250ml bottle with green-tinted liquid
Anua
Azelaic Acid 3 Cica Skin Clarifying Toner
Daily Clarifying Companion
78/100 $22.00
#21 Decorté Liposome Advanced Repair Serum frosted bottle with dropper
Decorté
Liposome Advanced Repair Serum
J-Beauty Liposome Staple
77/100 $143.00
#22 Dieux Skin Deliverance Cannabinoid Serum in opaque glass bottle with pipette dropper.
Dieux Skin
Deliverance Cannabinoid Serum
OG CBD Comfort Serum
77/100 $85.00
#23 Hero Cosmetics Force Shield Superlight Sunscreen SPF 30 in a white squeeze tube with green and
Hero Cosmetics
Force Shield Superlight Sunscreen SPF 30
Acne-Friendly SPF Pick
76/100 $19.99
#24 Kate Somerville DeliKate Recovery Cream glass jar with pale pink label
Kate Somerville
DeliKate Recovery Cream
Sensitive Skin Savior
75/100 $76.00
#25 PCA Skin Daily Defense Broad Spectrum SPF 50+ sunscreen tube
PCA Skin
Daily Defense Broad Spectrum SPF 50+
Professional Post-Peel SPF
75/100 $48.00
#26 Bioderma Photoderm MAX Cream SPF 50+ in a white tube with blue and orange Photoderm branding
Bioderma
Photoderm MAX Cream SPF 50+
UVA Protection Powerhouse
74/100 $25.00
#27 Lumin Anti-Fatigue Eye Patch hydrogel under-eye patches in dark packaging
Lumin
Anti-Fatigue Eye Patch
Quick-Fix Eye Refresher
73/100 $19.00
#28 Shiseido Ultimune Power Infusing Concentrate red glass bottle with pump dispenser
Shiseido
Ultimune Power Infusing Concentrate
Iconic Immunity Serum
70/100 $120.00
#29 Shiseido Vital Perfection LiftDefine Radiance Night Concentrate 40 mL burgundy and gold pump bottle
Shiseido
Vital Perfection LiftDefine Radiance Night Concentrate
Overnight Sculpting Treatment
69/100 $152.00
#30 Murad Essential-C Day Moisture SPF 30 in orange pump bottle packaging
Murad
Essential-C Day Moisture SPF 30
Vitamin C + SPF Veteran
67/100 $68.00
#31 Medik8 Advanced Day Total Protect SPF 30 moisturizer tube
Medik8
Advanced Day Total Protect SPF 30
UK Clinic-Grade Sun Shield
66/100 $72.00
#32 Dermalogica PowerBright Dark Spot Serum in opaque airless pump bottle
Dermalogica
PowerBright Dark Spot Serum
Multi-Pathway Brightener
59/100 $99.00
#33 Chanel UV Essentiel Complete Protection SPF 50 sunscreen in white tube
Chanel
UV Essentiel Complete Protection SPF 50
Luxury UV Shield
47/100 $60.00

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