I'm early 40s with ok skin (I don't wear foundation, only concealer under eyes). My concerns are anti-aging & under eye area. Am considering CO2, for face or under eyes. Through research realized it may cause hyperpigmentation. Years ago had CO2, months later noticed hyperpigmentation (at the time I didn't connect dots). Lumecca took away all the hyperpigmentation. Now I'm thinking maybe a different laser or treatment with no risk of hyperpigmentation.