What it is
Essential fatty acids (EFAs), such as omega-3 and omega-6, are crucial for maintaining a healthy skin barrier. Found in foods such as salmon, walnuts and flaxseeds, EFAs help lock in moisture and protect against environmental damage.
How it works in skincare
Incorporating EFAs into your diet or using skincare products with ingredients like rosehip and evening primrose oil can improve hydration, elasticity and overall skin resilience.