Kiehls @ Taoyuan International Airport Terminal 2

TW 

- s$1.73 / ml - 115 ml bottle (TWD 4581 / S$199) - 20% discount for 1 bottle

- S$1.57 / ml (TWD 4162 / S$181) - 23% discount for 2 bottles on 28 Sept

- S$1.51 / ml (TWD 4000 / S$174) - 30% discount for 2 bottles on 30 Sept

SG 

- s$2.64 / ml - 50ml bottle (S$132)

Matsukoshi discounted price

Singapore price

S$160 in TW airport Vs S$180 in SG airport