Sensitivity TestingUpdated 2 months ago

SENSITIVITIES

Certain people have sensitivities or allergies to hair colour. O&M uses the latest technology to develop gentle, Ammonia- free products to lessen sensitivity. Some ingredients can cause allergies or sensitivities, therefore it is important to carry out a patch test prior to application.

PATCH TEST

To patch test, apply a small amount of target colour behind the ear, leave without covering or removing for 48 hours. After this time, if there is any sign of reddening, itching or irritation DO NOT use this product.