Hydraquinone is good to lighten the skin tone as well as damage.so should i use products having hydraquinone?if yes, what are the products?if no, y?

Hydroquinone: Hydroquinone (hq) is the best product there is to lighten dark pigmentation. It's good for freckles and sun damage. Don't use it on moles and anything you're unsure of. The strongest hq you can get otc is 2%. That usually doesn't do a whole lot. For something stronger and more effective (4-10%), you should see your dermatologist.