iHerb guarantees that you will receive the best overall value in the world for over 30,000 natural products -- all authentic brands sold in the U.S. market. iHerb will also guarantee the delivery of your order. iHerb’s distribution centers are entirely climate-controlled, which protects the products from such conditions as humidity, heat and cold.

优惠码使用方法：
1. 点击“复制”按钮，然后点击“去购物”按钮，我们会引导您到商家页面。
2. 将您喜欢的产品加入购物车, 点击“Checkout”按钮
3. 在“Add Promo Code”输入框中粘贴第1步中复制的优惠码，并点击“Apply”。
提示：建议使用Visa付款。