A recent class-action lawsuit has emerged against Unilever/Conopco Inc. for its TRESemmé Keratin Smooth Color Shampoo due to reports of DMDM hydantoin content allegedly causing hair loss and scalp irritation.
A recent class-action lawsuit has emerged against Unilever/Conopco Inc. for its TRESemmé Keratin Smooth Color Shampoo due to reports of DMDM hydantoin content allegedly causing hair loss and scalp irritation.