Glossary · Formulation
What Is Gel (Formulation Format)?
A gel is a semi-solid system in which a liquid is immobilised by a structuring agent to give a transparent or translucent product that does not flow under its own weight but spreads under shear. Gels are used for cleansers, treatments, eye products and styling, and their feel depends on the structuring agent chosen.
Why it matters when you source
Gels are attractive because they read as light and clean, but they are unforgiving of certain actives and of some preservative systems. If a gel is your target format, say so in the brief, because the format constrains ingredient options from the start.
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