Ectoin

Also known as: Extremolyte

INCI: Ectoin | Function: Protective, Anti-pollution, Humectant | Type: Soothing

What Is Ectoin?

Ectoin is an extremolyte from halophilic bacteria that survive extreme environments. It protects cell membranes via 'preferential exclusion' — forming a protective hydration shell. Defends against UV, blue light, pollution, and dehydration. Clinically studied for atopic dermatitis and sensitive skin conditions.

Key Skin Benefits

+ Forms protective hydration shell around cells
+ Defends against UV, blue light, and pollution
+ Reduces skin inflammation and sensitivity
+ Long-lasting moisturization
+ Clinically studied for atopic dermatitis
+ Stabilizes cell membranes under stress

Pros

+ + Multi-environmental protection (UV/pollution/blue light)
+ + Clinically proven for sensitive/atopic skin
+ + Excellent safety — biomimetic compound
+ + Non-irritating — for compromised barriers
+ + Long-lasting hydration

Cons

− − Less known in Western markets
− − Higher cost than traditional humectants
− − Not sunscreen replacement
− − Limited anti-aging clinical trials

Specifications

Property	Value
Usage Areas	Face, Eye, Body
Product Type	Leave-On, Rinse-Off
Source	Halophilic bacteria (biotech)
Natural Level	Natural

Safety Ratings

Metric	Rating
Skin Sensitivity	1/5
Comedogenic Rating	0/5
EWG Score	1/10

Regional Regulatory Limits

Region	Leave-on %	Rinse-off %	Status
EU (CosIng)	No limit	No limit	Allowed
US (CIR/FDA)	No limit	No limit	Allowed
Japan (MHLW)	No limit	No limit	Allowed
ASEAN	No limit	No limit	Allowed
China (NMPA)	No limit	No limit	Allowed

Typical Usage % by Product Type

Product Type	Typical %
Serum	0.5 - 2%
Moisturizer	0.5 - 2%
Anti-pollution Mist	0.5 - 1%
Eye Cream	1 - 2%

References

Bünger J, Driller H — Ectoin skin protection (2004). PMID: 15375364
Graf R et al. — Multifunctional role of ectoine (2008). PMID: 18640526
Heinrich U et al. — Ectoin cream on atopic skin (2013)

← Back to Skinpedia