Ectoin Is About to Be As Popular As Retinol. Here’s What You Need to Know.
If you pay attention to the ingredients in your skin-care products, you may have noticed ectoin (pronounced ek-toyn) popping up in everything from moisturizers to sunscreens. It hasn’t reached the household-name status of retinol or vitamin C just yet, but experts say it’s going to get even more popular. Unlike ingredients that target wrinkles, ectoin helps skin defend itself against everyday stressors such as UV exposure, pollution, and dehydration by supporting a healthy skin barrier. “It seems to be very effective, so I expect to see it in a lot more formulas,” says cosmetic chemist Julie Pefferman. Here’s what it is, how it works, and who can benefit most from adding it to their routine.
Our top picks
What is ectoin?
Ectoin is an amino acid classified as an extremolyte — a molecule that helps organisms survive in harsh environments, including extreme temperatures and high-salt lakes. It was first discovered in microorganisms living in desert environments and salt lakes. In skin care, it’s used for a similar purpose: helping defend skin against environmental stress while supporting hydration and a healthy skin barrier.
More than just another trendy ingredient, Pefferman says ectoin reflects a broader shift in skin care. “It’s part of the skin-minimalism movement,” she says. “People are going away from lots and lots of ingredients and focusing on a healthy barrier.”
How does it work?
Ectoin is a multitasker. It helps skin stay hydrated, strengthens the skin barrier, and protects cells from environmental stressors like UV radiation and pollution. It forms a hydration shell around cells and proteins, helping them maintain their structure and function even under stressful conditions.
Research also suggests ectoin may also help reduce inflammation. “When formulated at the right percentage, it help with cytokines, proteins that regulate the skin’s immune response, at the topical level,” says Pefferman.
Who is it best for?
Most skin types can benefit from ectoin’s hydrating and barrier-supporting properties, but it’s especially well suited for sensitive skin because it helps calm inflammation while strengthening the skin barrier. “I think it’s going to be particularly good for people with rosacea and redness-prone skin,” says Pefferman.
Ectoin products to try
New! You can now save this product for later.
Ectoin pairs with glycerin and polyglutamic acid in this hydrating serum.
New! You can now save this product for later.
Ectoin, hyaluronic acid, and ceramides hydrate skin while helping strengthen the skin barrier.
New! You can now save this product for later.
In this sunscreen, ectoin protects and hydrates skin.
New! You can now save this product for later.
This sweet and warm scented body oil includes ectoin to help lock in hydration.
New! You can now save this product for later.
Ectoin joins other ingredients in this moisturizer to help strengthen skin’s resilience against environmental stressors.
New! You can now save this product for later.
More From The Strategist
- Hark, the Advent Calendars Arrived (Very) Early This Year
- The Best Things Strategist Editors Have Bought This Year (So Far)
- 63 Things You Should Never Buy Full Price
- The Strategist Fall 100
The Strategist is designed to surface useful, expert recommendations for things to buy across the vast e-commerce landscape. Every product is independently selected by our team of editors, whom you can read about here. We update links when possible, but note that deals can expire and all prices are subject to change.
