this is some hard core dandruff shampoo. i as in, don’t use it if your dandruff problem is just the typical, run of the mill type
it’s because it’s medicated. so your normally dry hair will most likely be super dry after one use. but because it’s medicated, it has other uses, like, if you get a rash or something, apply a small amount of selsun blue and let it sit for 5 minutes MAX (or risk burning your skin) and ta-da! rash gone. for more problematic skin problems, use it for a week
this is more of a quick fix solution, something that comes in handy for backpackers who suddenly find themselves itchy after an being in an overnight bus (my sg-penang bus), and deceivingly clean hostel beds (agga bed and breakfast in yangon! i will write about you)
they’ve discontinued this in the philippines for god knows how long. it’s available in singapore and malaysia…don’t know where else.