When people get their hair chemically straightened, one chemical is put on the hair to break the disulfide bond that give the hair strands their shape and a second chemical is used to reform the disulfide bonds to hold the hair in a new position. what level of protein is affected by these processes. why doesnt the hair stay straight forever after this treatment?

Respuesta :

Chemically straightening hair changes the shape of disulfide bonds, which alpha keratin protein; this is the second protein structure. However, as the hair continues to grow out, this keratin protein grows with it, thus outlasting the effects of the chemicals which change the shape of the protein. 

Chemically straightening hair can change the shape of disulfide bonds of  alpha keratin protein and also its configuration.

This keratin protein grows with the hair growth and outlast the effect of the chemicals which change the shape of the protein.

What is permanent hair straightening ?

Permanent hair straightening is the type of application of chemical processing for  hair.

It can be can either keratin treatments, Japanese thermal straightening, or perm straightening processes.

The process mainly involves in applying a chemical solution to hair.

These chemicals change the configuration of the hair proteins.

In perms and Japanese thermal straightening,  a neutralizer is used which can cause hair to be locked in its new shape by forming new bonds between the protein molecules.

The drawbacks of this method include hair breakage, damage of hair quality, most commonly the used formaldehyde in chemicals can act as carcinogen which pose a health hazard for consumers.

Learn more about Keratin protein, here:

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