Cosmetology · Chemical Texture Services

Following the manufacturer's processing time during a chemical service is important because:

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

Over- or under-processing can damage hair or give poor results

A Longer is always better
B Time does not matter
C It is optional
D Over- or under-processing can damage hair or give poor results

Why this is the answer

Following the manufacturer's specified processing time during a chemical service (perm, relaxer, or color) is important because leaving the product on too long (over-processing) can severely damage or break the hair, while removing it too soon (under-processing) gives weak or incomplete results. Timing, along with strand testing and monitoring, keeps the service safe and effective. 'Longer is better' is a dangerous misconception with strong chemicals. Respecting processing times is a key safety-and-results principle emphasized throughout the chemical-service content.

Source: Hair Care — Processing Time

Practice more questions

This question is from our Cosmetology Practice Tests practice test. Take the full practice test to test your knowledge across all Chemical Texture Services and other topics.

Take the Hair Care practice test →

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.

New to this exam? Our Cosmetology exam guide explains the format, scoring, and how to prepare.

Study materials on Amazon

Core textbook

As an Amazon Associate, CJ Affiliate, and AWIN publisher we earn from qualifying purchases. Links above are affiliate links. Full disclosure →

Following the manufacturer's processing time during a chemical service is important because:

Why this is the answer

Practice more questions

About this topic: Chemical Texture Services

Related questions

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

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

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:

Study materials on Amazon

Milady Standard Cosmetology

State board exam study guides

Cosmetology practice test books