All of us wish that there were good alternatives to droopy brows and eyelids other than surgery. Although there can be many underlying issues that affect eye appearance, sagging eyelids are very common to getting older. Some dietary considerations like salt reduction and good hydration, as well as getting plenty of sleep can help at least a little bit with puffy lower eyelids but are unlikely to help with drooping brows or upper eyelid issues.
Botox injections can slightly raise the brow, and by turns raise the skin of the upper eyelid, therefore opening up the eyes more. Although Botox can assist a small amount in raising the brow and in reducing the appearance of droopy eyelids, if what you notice most is excess skin above the eye, usually eyelid surgery, or blepharoplasty is the best way to address this issue.