It is reliant on what results you want to acquire. Eye creams rich in caffeine and hyaluronic acid give instant outcomes, fighting dryness and puffiness.
However, if you want long-term results, give your eye cream at least 5 to 6 weeks to work. Some ingredients take a long time to work.
Vitamin C and retinol begin working instantly at a cellular level, but you will see noticeable results after the use of several months.