Colly collagen does not have any effect on the digestive system. You should eat about 2-3 months Mix Colly Pink 1 pack in the shaker. Bottle with 150 ml. Of water. - Shake and then drink:) For the best result: - Drink 1 time in the morning and 1 time before. Go to sleep in the first week.- After first week drink Colly Pink Collagen at any time before meal. Quantity: 1 Box : 30 Packs. Condition: new (factory sealed) SHIPPING WORLDWIDE & FAST WITH THAILANDPOST. 1 ชิ้นราคา 34.11 USD