Cosmetology · Chemical Texture Services

Why is a thorough hair and scalp analysis (and often a strand test) essential before a chemical texture service?

Reviewed by Jordan Morley, Editorial Lead at 247SimpleTests. Written by the 247SimpleTests Editorial Team from the official source material cited on every question.

Correct answer

To ensure the hair can safely withstand the service and to predict the result, avoiding damage

A To ensure the hair can safely withstand the service and to predict the result, avoiding damage
B To choose a cape color
C It is not needed
D To set the price only

Why this is the answer

A thorough analysis — and often a preliminary strand test — is essential before a perm or relaxer because these strong chemical services can damage or break hair that is weak, over-porous, previously over-processed, or in poor condition. The analysis checks porosity, elasticity, and condition and identifies any scalp issues or prior chemical treatments that could react badly. The strand test predicts how the hair will respond. These precautions protect the client from damage and a poor result. The exam stresses analysis and testing before chemical services.

Source: Hair Care — Pre-Service Testing

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About this topic: Chemical Texture Services

Chemical texture services — permanent waving, relaxing and curl reformation — are tested on the chemistry (reduction and oxidation), the products (thio, hydroxide), processing and neutralising, and the safety checks before and during the service. This is one of 11 Hair Care questions on chemical texture services, each with a full explanation on a single study page.

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Why is a thorough hair and scalp analysis (and often a strand test) essential before a chemical texture service?

Why this is the answer

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About this topic: Chemical Texture Services

Related questions

Chemical texture services (perms and relaxers) permanently change the hair by:

An open sore, abrasion, or scalp irritation generally means a chemical texture service should be:

When performing a chemical service, the cosmetologist should protect themselves by:

The action that breaks the hair's internal bonds in a permanent wave is performed by the:

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