Tint Patch Test (10)
The unique patch test system used by hairdressers and lash tech as a skin allergy test prior to tinting. It must be applied 48 hours before any first time colour treatment. The GDL Tint Patch Test contains a very small amount of the main allergies found in every permanent hair dye. If clients are sensitive to these active ingredients it is indicated by a small sensitivity reaction. Pack of 10.