Retinol is a derivative of vitamin A, and is commonly used in skincare for its numerous benefits for skin health and appearance, especially around the eyes. 

Retinol is most popular to use for its anti-aging properties because it has the ability to reduce the appearance of fine lines and wrinkles.  Promoting cell turnover and stimulating collagen production helps maintain skin elasticity and firmness.  Collagen is a key protein that keeps the skin youthful looking; resulting in reduced sagging skin and overall improved skin structure including minimized puffiness.    Regular use of retinol can even skin tone by fading dark spots, hyper pigmentation, melasma, and other various forms of discoloration.

Using products that contain retinol should be used at night as it can make your skin more sensitive to sunlight.  Apply sparingly around the orbital bone avoiding the eyelids and waterline, and always follow with a moisturizer.  

Overall, retinol is a powerful and versatile ingredient and using around the eyes can significantly improve the health and appearance of your skin when used consistently.