Most “black henna” or “blue henna” products likely contain additives. The ingredient often used to darken henna is a coal-tar hair dye containing paraphenylenediamine (PPD), which can ...
Hair care products are a major source of lifestyle-related chemical exposure in the general ... She had no history of allergic responses to hair dye or black henna tattoos. A diagnosis of type IV ...
Suitable for all hair types, this hair dye shampoo from Indica may provide long lasting rich colour. This ammonia-free colour shampoo may provide 100 percent grey hair coverage. It is enriched with ...
The vast majority of reactions to hair-dye products are caused by PPD. [4–6] In past years, PPD was used in permanent hair dyes but not in semipermanent dyes. More recently, PPD has been used in ...
Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...
Made from 100% pure indigo leaves, it conditions hair while promoting shine and vitality, making it ideal for healthier, more vibrant locks. Make sure that you opt for products that contain organic ...