Definition: A gel is a solid, jelly-like material which behaves as solids and contribute or provides adhesive or sticky nature to the products. In this way gel is a dispersion of molecules of a liquid within a solid in which the solid is the continuous phase and the liquid is the discontinuous phase.
Tazorac - tazarotene topical gel
- Positif life sciences - a five pharmaceticals a shining sun in health care.
- Andre O. Barel, Howard I. Maibach, Handbook of Cosmetic Science and Technology.