Coloring hair can cause it to become dry, dull, and brittle, but certain kinds of antioxidants may offer substantial protection. Moon-Moo Kim, a chemist affiliated with Dong-Eui University in South Korea, exposed hair samples to hydrogen peroxide or ammonia, ingredients in many permanent hair dyes (light or dark). Treating hair first with elm extract, which contains procyanidins--a flavonoid also found in cocoa, red wine, and apples--reduced surface damage and protein breakdown and increased hair strength. Procyanidins have been found to promote hair growth in cases of balding; they may also protect hair against oxidative stress from perming, sunlight, and aging, the study suggests. Elm extract is in some botanical products, such as select Nurture My Body shampoos and conditioners and Kinky-Curly Knot Today detangler.
No comments:
Post a Comment