Yes, it is for a litre of water. My product did not contain any gelling agent. It is always better to buy the gelling agent separately. I believe sugar is usually added. Did you check the product online to see if it contains sugar? I got this formula off another forum and it worked for me. I specifically do not know how much sugar to add otherwise. Hope somebody can help you. My product was P6668. You can PM me and I can tell you the name of the company.