Permanent Gel Thuya Professional Line, 15 ml. Step 1 of the Thuya brow lamination system.
 
What it does: Softens the hairs, opens hair cuticles. The chemical process breaks down the bonds within each hair, allowing them to move into a new shape. The hair stretches and softens.
Dermatologically and ophthalmologically tested.
Gentle and effective.
Odour during the procedure is the release of sulphur-hydrogen and is absolutely normal for such procedures in accordance with chemical processes.