Keeping the luster in your hair
Hair Strength
Increasing the hairs’ strength can be attempted by using conditioners with ingredients such as hydrolyzed proteins or hydrolyzed human hair keratin proteins, which have a low molecular weight. They can easily penetrate the hair shaft to replenish the hairs nutrients, providing a high degree of improvement.
These proteins can also be used to smooth down split ends, also known as trichoptilosis. "Split ends develop after the protective cuticle has been stripped away from the end of hair fibers as a result of chemical or physical trauma," stated Dr. Draelos, "but it can also be a result of vigorous brushing." While there is no way to reverse split ends, trims every four weeks and deep-conditioning treatments can keep strands supple and flexible.
Hair and Photoprotection
While the hair is made up of nonliving materials and cannot develop cancerous qualities, its cosmetic value can be diminished through excessive exposure to the sun. UV exposure can induce oxidation of the sulfur molecules within the hair shaft, which are important for hair strength. If this oxidation occurs, the hair can become weak, dry, rough, faded and brittle.
Individuals who bleach or lighten their natural hair color may also notice slight color changes in their hair when it is exposed to UV rays. Blonde hair may develop "photoyellowing," a process where chemicals in the hair shaft react to UV exposure, causing yellowing, fading and a dull appearance. Even natural brunette hair tends to develop reddish hues due to the photo-oxidation of melanin pigments in the hair shaft.
To protect your hair from the damaging rays of the sun, look for a leave-in conditioner that contains zinc oxide. Wearing a hat made of a solid material is another form of protection. When selecting a hat for sun protection choose carefully. Some hats, which may be fashionable and look nice, have open spaces, especially straw hats, which cannot give you much protection.
"It’s important to take care of the hair to prevent obvious damage," recommends Dr. Draelos. "Hair truly is the crowning glory on every person and it only takes a few extra moments to add proper hair care to a daily routine."
The American Academy of Dermatology, founded in 1938, is the largest, most influential, and most representative of all dermatologic associations. With a membership of over 14,000 dermatologists worldwide, the Academy is committed to: advancing the diagnosis and medical, surgical, and cosmetic treatment of the skin, hair and nails; advocating high standards in clinical practice, education, and research in dermatology; supporting and enhancing patient care for a lifetime of healthier skin. For more information, contact the AAD at 1-888-462-DERM or www.aad.org.
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