Unheated perms belong to what

Non-heat perm belongs to cold perm.

Cold perm is a type of perm, also known as "chemical perm", refers to a form of perm process completed with the reaction of chemicals at room temperature.

Cold perm belongs to the most traditional and classic perm, easy to operate, no heat can also be ironed out the desired curls. Cold perm and hot perm operation process and principle is different, cold perm is more suitable for hot small volume and close to the root of the volume. After cold ironing to play gel moisturizing, wet when it is curly, dry when the volume is not good, hit something after the hair hard without elasticity.

Disadvantages of cold ironing:

1, more dependent on the hair texture, hair fine and soft or poor hair texture after cold ironing is easy to return to straighten, perm process is easy to overdo it; coarse and hard hair is not easy to iron volume.

2, there is a certain degree of damage to the hair, especially similar to the tinfoil perm, fireworks perm such as small volume perm, due to excessive twisting of the hair, it is very easy to appear hair yellow, dry phenomenon.

3, inconvenient to take care of. One of the characteristics of cold perm is wet hair when the volume is obvious, dry hair when there are different degrees of straightening, so the cold perm of the large volume usually after shampooing need to modeling supplies (hair wax, gel, etc.) to help shape or re-blow air modeling.