Dry hair lacks the oil and moisture it needs to give it sheen and a soft texture. As a result, hair that’s dry will be brittle and dull and have a straw-like texture. Most of us will get dry hair at one point or another–either due to over-processing or exposing it to sun, wind and chlorinated swimming pools.
In Short following are the External Dry Hair Causes:
1. Harsh/strong shampoo
2. Wash hair excessively
3. Dry or hot weather
4. Swimming (spending more time without swimming cap)
5. Excesive use of Dryer (not following the stander way)
6. Spending more time in open areas (when weather is less humidity, hot, dry)
7. Hair color treatments too often
8. Medication Long illness
9. High level of minerals in local water supplies/ hard water
10. Low Quality Hair Products
Use A Sulfate Free Shampoo. Sulfates are found in most soaps and shampoos. Sulfates are surfactants that create suds, but they can also rob the hair of moisture and cause color-treated hair to fade. Excessive coloring can lead to damaged hair and shampoos with sulfates exacerbate the problem. Even if you never color your hair or don’t color it often, using a sulfate free shampoo is better for your hair than shampoos that contain sulfates.
Eat Right. Healthy hair requires a healthy diet. Protein is especially important because it is the building block for hair, but it can’t finish its work without carbohydrates. Iron and B-complex also play a starring role in creating healthy hair, according to trichologist Philip Kingsley in his book “The Hair Bible.” Take care of your body and your hair by getting the recommended daily intake from all the food groups.
Vinegar. Simply adding a teaspoon of vinegar to your final hair rinse can be effective in treating dry tresses. You could also mix 2 cups of water with one-half cup of vinegar, massage it into your hair after you shampoo, and leave it in for several minutes — up to an hour — before rinsing.