these collars are light weight and very soft comfortable,ideal for kitten small pets. your disease, its nature, treatment and various aspect of disease will be explained to you in detail by doctor so that you understand your disease very well and feel satisfied. these lines do change and we do also have volume of certain lines so its always worth checking whenever you are on the site to see what we have added. however, some are better taken with food, and will say so on the supplement. can always be re-applied in dry conditions. 