What is Ectoin?
Ectoin was first found in 1985 in a bacterium (Ectothiorhodospira halochloris) living in the salt lakes of Wadi Natrun in Egypt. The bacterium makes it to protect its cells from extreme salt, heat and dryness. Cosmetic ectoin is now produced by bacterial fermentation. Because it helps skin hold on to moisture and calms irritation, it shows up often in products for sensitive skin. There are clinical studies of ectoin creams in mild to moderate atopic dermatitis, but that does not make an ectoin cosmetic a treatment.
How it works
Ectoin organises the water molecules around it, forming a thin layer of water around cell membranes and proteins. This layer acts as a buffer against stresses such as dryness, heat and UV. The result is less water loss and calmer-looking skin.
Frequently asked questions
What is ectoin?
A small molecule that bacteria living in salty, dry environments make to protect themselves. In cosmetics it is used to help hold moisture and soothe skin.
Which skin types is it for?
All skin types. Sensitive skin that flushes easily or feels dry and tight benefits most.
Can I use it every day?
Yes, morning and evening. It has no known ingredient conflicts.
How is it different from hyaluronic acid?
Hyaluronic acid binds water to hydrate the top layer of skin. Ectoin organises the water around cells and helps protect skin against stress. They work well together rather than replacing each other.
Does it treat eczema?
No. Some studies found that ectoin creams eased mild atopic dermatitis symptoms, but a cosmetic is not a treatment. If you have eczema, do not stop the treatment your dermatologist recommends.