4. Jellies
Jellies are class of gels prepared by dispersing a polymeric matrix
substance in a high portion of liquid, usually water.
They are similar to mucilage, in that they may be prepared from acacia, gelatin and carboxymethylcellulose and similar substances.
But differ from mucilage in having a jelly-like consistency.
Uses: Jellies are used as lubricants for surgical gloves, catheters, rectal thermometers and ultra-sonic devices.
Therapeutically, vaginal jellies which contain contraceptive substances are also available.
Jellies are prone to microbial contamination and so, preservatives like Parabens may be included.