Medicinal oil: On the right hand side facing Mong Kok Pioneer Center, walk towards New Century Square. That road seems to be called Bi Street. There are several pharmacies on that road, which are cheaper than other pharmacies (including daily necessities).

Skin care products and cosmetics: Sai Yeung Choi South Street in Mong Kok is a golden place to buy audio-visual, electronic and telecommunications products. Many cosmetics (sasa) and fashion shops are stationed in it, displaying fashionable goods, which is dazzling. (MTR Mong Kok Station Exit D3), if you want high-end cosmetics, you can go to nearby langham place, where there are fashion brands from 1 floor to the 3rd floor, a food court on the 4th floor, young clothes on the 5th floor to the 7th floor, and many famous young fashion shops on the 5th floor to the 7th floor ... (MTR Mong Kok Station Exit C).