We carefully select our herbs used without sulfur, which is commonly used as herbs preservative. To keep the freshness of the herbs, each herbal packs are packed freshly after order received. Therefore, this range is opened for BACKORDERS only. Once a backorder is received, we will notify you on the next available in-stock date through email. The delivery might take 2-4 weeks. If you are not agreed on the delivery date, we could proceed for a refund or a swap of other products with same value.