Testing found potentially dangerous chemicals, including cancer-causing substances, in 100 percent of the hair samples. So, ...

View Full Profile. Learn about our Editorial Policies. Tightly curled and long scalp hair of ancient hominins could have evolved to shield the scalp from the sun, reduce heat transmission due to the ...

Ten synthetic braiding hair products were found to contain dangerous chemicals in them after being tested. Here's what to do when considering braids.