New iHerb promo code for Hong Kong, Singapore, Taiwan and Macau Ends May 30 Apply 618KMH7 15% off orders over 333RMB or 28% off over 555RMB New iHerb promo code for China Ends June 3 Apply IHERBMAY10 10% off purchases of $40+ IHerb promo code for USA and Canada Ends May 31 Appl...