Fabulous for fine, thin, damaged (think bleached/color treated) hair--normally very low-porosity but ends are now, of course, porous. Doesn't weigh down hair but leaves it soft and tangle-free. Haven't yet overdone it to the point where hair got oily/icky despite only washing my oily scalp 2x a week. $5.99 USD.
Has UV protectant, but only wish is that it had something more powerful.