How Does a Flat Iron Work?
The intense heat of a flat iron is key to its effectiveness. Hydrogen bonds in each strand of hair cause it to curl. When enough heat is applied, the hydrogen bonds are broken and the hair lies straight. The curlier the hair, the more heat is required to break up these bonds so the hair can lie flat. The kind of flat iron used also determines how easily the hair will lie down. Low quality flat irons are made of aluminum and sprayed with a ceramic coating. These require longer to straighten the hair. More expensive flat irons are often completely ceramic and created so that the daily wear and tear won’t wear off the ceramic coating. Drawbacks Flat irons can create problems if they are used on a daily basis. The intense heat can cause split ends, dull or frizzy hair, and occasionally the hair can become brittle and break off. If a flat iron that is meant only for dry hair is used on wet hair, it can cause intense damage because the heat and steam are trapped against the hair. Cheap flat
