Permanent hair - it's not quite the same as the previously common chemistry. From her hair spoils, and permanent - usually more gentle procedure, although the structure of the hair he still changes, making them more easily. Permanent is alkaline, acid and exothermic. Alkaline makes lightweight, flexible curls, sour - a steep curls, exothermic - elastic curls.
In addition, permanent subdivided into types of technology implementation. Close-permanent - it is an easy styling, hair root gives volume at the roots, bonding makes hair wavy, extending not only gives curls and volume, the spiral is good for long hair and forms a spiral strands. Sometimes also a partial and permanent covering when perms exposed individual ringlets or patches of hair.
Each type of permanents suitable for different hair and hairstyles. Which one to choose, should tell the master. But first we must decide what you want to have curls - large, medium or small, conventional or spiral. Then you can choose a specific technology.
The principle is based on permanent wave that certain chemical bonds between protein destroy hair. As a result the liberated molecules are the desired shape. Before the permanent head wash to stuff more easily penetrate into the hair is wound on curlers and applied to the hair a special composition. Once the desired effect is achieved by varying the shape fix different composition, which establishes new links between the molecules.
Hair should not be washed for 48 hours after application permanents, better than them and not combing, not to lay a hairdryer. Upon the expiration of the set time, you can wash your hair, but a special shampoo for hair permed. Comb gently necessary only to damp hair, comb with large teeth. Dry hair is better without the hair dryer, naturally. Perm usually lasts 3-6 months, but the new hair grow with natural structure.