I have tried just about everything to reduce the horrible dark marks under my arms but nothing worked. Then I started using this awesome deodorant, I was pleasantly surprised at its effect on my sensitive underarm skin. Smells great and is so affordable! I would recommend this product if you are struggling with dark marks under your arms. I have been using it for about 3 weeks now and already I am noticing a difference. The marks are getting lighter and it also keeps me dry and odour-free throughout the day.