The eye contour is a sensitive area of the face that requires specific care to address all the issues it may encounter (dark circles, bags, fine lines...). Unlike conventional facial care, eye contours have undergone ophthalmological tests, as they are likely to migrate by capillarity and come into contact with the eye. Moreover, they are formulated at a neutral pH to adapt to this area. The pH of the eye contour is about 7, while it is generally between 4.7 and 5.7 on the rest of the face.
The primary function of the eye contour area is tohydrate this delicate zone. Indeed, the eyelids are very poor in sebaceous glands, which means that the hydrolipidic film in this area is practically non-existent. The eye contour is therefore barely protected from external aggressions and dehydration. To compensate for this lack, it is beneficial to apply a cream containing both hydrating/humectant active ingredients, such ashyaluronic acid or aloe vera gel, and film-forming agents such as vegetable oils or butters.
Boasting a strong hygroscopic capacity, moisturising molecules retain water within the skin, thereby limiting insensible water loss (IWL). Film-forming agents, on the other hand, recreate an equivalent of the hydrolipidic film to protect the skin from pollution, UV rays, and dehydration. It's also worth noting that hydrating the eye contour helps prevent the appearance of dehydration fine lines at the corner of the eye.
Some eye contour treatments also contain ingredients that protect the skin from the dangers of the sun. Indeed, let's remember that this area is very thin and therefore easily allows UV rays to penetrate, which are responsible for the excessive generation of free radicals. These species cause several damages to the skin and DNA, and are among other things responsible for the acceleration of skin ageing and pigmentation disorders. To protect oneself, it is good to rely on eye contour treatments with a sun protection factor (SPF) or rich in antioxidants, such as vitamin C or polyphenols. These molecules are capable of neutralising free radicals by donating an electron.