Secret Prescription Herbal Jelly (秘制龜苓膏) Eu Yan Seng Selling a 200ml jelly which I got from a gift hamper recently. Expires 13 Jan 2018. From website: This herbal jelly made from our age old secret recipe, specially refined and using only top quality Chinese herbs: Reduce heatiness, Nutrition. Sold for $4.90 at retail store. Meet ups. Postage option available if you would like to.