The 'best' retinol eye cream depends on individual skin type and sensitivity. Look for formulations specifically designed for the delicate eye area with lower retinol concentrations and added hydrating ingredients to minimize irritation.

Yes, retinol can be beneficial for under eyes, helping to reduce the appearance of fine lines, wrinkles, and dark circles by boosting collagen production. However, start with a low concentration and use it sparingly to avoid irritation.

The 1/2/3 rule is a guideline for introducing retinol: start with application once a week for one week, then twice a week for two weeks, and finally, if tolerated, three times a week for three weeks. This gradual introduction helps the skin adjust and minimizes potential irritation.

Koreans often use hydrating and anti-aging ingredients in their eye care, such as ginseng, hyaluronic acid, peptides, and fermented ingredients. These help to plump the skin, reduce the appearance of wrinkles, and improve overall skin elasticity.