you can start with looking at those products in
Watsons, Mannings and Body Shop
and buy some magazines like Maxim to read
come in-->
u can go to this beauty forum, under face talk they have a whole discussion about masks, a lot of recommendations also.flowerpot forum
for myself, i use those paper-packed 1-time mask from watson or guardian, around $2 only. sasa also has quite a lot of medicated mask, can take a look