What it is
Polyamide-3 is a synthetic polyamide polymer used as a rheology modifier in cosmetic formulations. It can thicken or gel oil-based phases and lend body and structure, which helps stabilize products such as sticks and balms and refine their application feel. In sunscreens it contributes to a consistent texture and a smooth, even payoff.
Safety & warnings
As a high-molecular-weight polymer used for texture, polyamide-3 is generally well tolerated, remains largely on the skin surface, and is not a recognized fragrance allergen.
Origin & sourcing
Synthetic; a manufactured polymer rather than a naturally sourced ingredient.
Questions everyone asks
What does polyamide-3 do in cosmetics?
It acts as a thickener and gelling polymer that structures oil phases, controls viscosity, and improves a product's texture and application.
Is polyamide-3 natural or synthetic?
It is a synthetic polymer made for use as a texture and viscosity-controlling ingredient.