You have to squeeze every drop of gel out of the sachet, but it's not that easy. There is a small pouch inside the gel pouch, which you open to mix colors and then squeeze it out. If there is still a tiny piece in the small bag, a whole animal will not emerge. The gel penetrates the hair. From several packages that the daughters received at the turn of the year, we successfully made 2 animals. This was even after learning from the first experiences.