Chemicals in hair dyes may cause allergies for some people. Around 38% of people who color their hair report having an allergic reaction to hair dye. The most common allergic reaction to hair dye is ...
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 ...
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 ...
Our gut microbiome, an ecosystem of ... A Safer Treatment Path for High-Risk Children to Overcome Food Allergies Feb. 28, 2024 — New research reveals a safe path to overcoming food allergies for ...
There are several dog breeds with hair covering their eyes, and many people wonder whether these dogs are bothered at all by all those hairs and if they are even able to see. Whether these dogs can ...