Patch test

A small test application of a product, usually hair or lash dye, on the skin a set time before the full service to check for an allergic reaction. Many salons require a patch test before a client's first color appointment.

Nov 8, 2026
NOWAITN

A small test application of a product, usually hair or lash dye, on the skin a set time before the full service to check for an allergic reaction. Many salons require a patch test before a client's first color appointment.

See also: Colorist, Waiver, Booking