Ectoin
Also known as: Ectoine
Ectoin is a protective molecule made by bacteria that live in extremely salty environments. In skincare it binds moisture, calms stressed skin and protects it from environmental stressors.
Contents
What is ectoin?
Ectoin is a natural protective molecule that certain bacteria produce to survive extreme conditions – such as salt lakes, deserts or intense sunlight. Such substances are called extremolytes. For cosmetics, ectoin is produced biotechnologically using the bacterium Halomonas elongata. It is also used in medical devices, such as nasal sprays, eye drops and creams for eczema.
How does ectoin work on the skin?
- Hydration: ectoin binds water molecules and forms a kind of water shell around cell structures and proteins.
- Soothing: it eases redness and tightness in irritated skin.
- Protection: ectoin stabilises the skin barrier and protects cells from stress caused by UV light, pollution and dryness.
Which skin types is ectoin suitable for?
- sensitive and irritated skin – see skincare for sensitive skin
- dry skin and a weakened skin barrier
- stressed skin during a course of retinol or acids
- redness-prone skin – see skincare for redness
How to use ectoin
- Ectoin usually comes in serums, creams and sunscreens – apply them as usual, morning and evening.
- Ectoin is very well tolerated and can be combined with almost any active.
- In your morning routine it complements sunscreen but doesn’t replace it.
What can you combine ectoin with?
- Panthenol and centella asiatica for extra soothing
- Ceramides strengthen the skin barrier
- Hyaluronic acid for even more hydration
- Retinol and acids: ectoin helps cushion irritation
Ectoin in Korean skincare
Korean brands like to combine ectoin with panthenol or hyaluronic acid. From our range: the Double Up Cream Ectoin & Panthenol by epii, the Hyaltoin Flooding Serum by EQQUALBERRY, the Mighty Bamboo Panthenol Serum and the Hydro Wave Deep Sea Serum by Purito, the Retinal Booster Shot by Arencia, the Black Bamboo Daily Soothing Sun Shield by Haruharu Wonder and the Beta-Glucan 3X Barrier Cream by iUNIK.
What does the research say?
In lab and skin tests, ectoin protected skin cells from damage caused by UVA light, which contributes to premature skin ageing (Buenger & Driller, Skin Pharmacology and Physiology, 2004). Further studies show that ectoin can improve skin hydration and relieve symptoms of dry, eczema-prone skin.
Frequently asked questions
Is ectoin suitable for sensitive skin?
What is the difference between ectoin and hyaluronic acid?
Can I use ectoin with retinol?
Popular products
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Double Up Cream Ectoin & Panthenol

Vendor:Double Up Cream Ectoin & Panthenolepii- Regular price
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CHF 20.67 - Sale price
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CHF 20.67 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 24.90
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Hyaltoin Flooding Serum

Vendor:Hyaltoin Flooding SerumEQQUALBERRY- Regular price
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CHF 20.67 - Sale price
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CHF 20.67 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 32.40
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Mighty Bamboo Panthenol Serum

Vendor:Mighty Bamboo Panthenol SerumPurito- Regular price
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CHF 18.59 - Sale price
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CHF 18.59 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 29.10
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Hydro Wave Deep Sea Serum

Vendor:Hydro Wave Deep Sea SerumPurito- Regular price
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CHF 17.10 - Sale price
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CHF 17.10 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 26.80
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Retinal Booster Shot

Vendor:Retinal Booster ShotArencia- Regular price
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CHF 14.86 - Sale price
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CHF 14.86 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 23.30
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Black Bamboo Daily Soothing Sun Shield

Vendor:Black Bamboo Daily Soothing Sun ShieldHaruharu Wonder- Regular price
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CHF 12.37 - Sale price
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CHF 12.37 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 19.40
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Beta-Glucan 3X Barrier Cream

Vendor:Beta-Glucan 3X Barrier CreamiUNIK- Regular price
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CHF 19.01 - Sale price
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CHF 19.01 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 29.80
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HPR Pro Shot

Vendor:HPR Pro Shotepii- Regular price
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CHF 20.67 - Sale price
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CHF 20.67 - Translation missing: en.products.product.price.compare_at_price
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instead of
CHF 24.90
See also
- PanthenolPanthenol is the precursor of vitamin B5. It hydrates, calms irritated skin and supports the regeneration o...→
- Centella AsiaticaCentella Asiatica, known in Korea as “cica”, is a medicinal plant from Asia. In skincare it calms red, irri...→
- CeramidesCeramides are the skin’s own lipids that sit between skin cells like mortar. They keep the skin barrier int...→
- SqualaneSqualane is a lightweight, skin-identical oil that prevents moisture loss and keeps the skin supple. It is ...→

















