Cosmetology

Cosmetology encompasses the study and application of beauty treatments, including hair, skin, and nail care.

Advanced Topics

Chemical Treatments and Safety

The Science Behind Chemical Treatments

Chemical treatments like hair coloring, perming, and straightening use a variety of solutions to alter hair’s structure. Understanding the science is crucial for safety and successful results.

Types of Chemical Services

  • Hair coloring: Alters the pigment in the hair shaft.
  • Perms: Use chemicals to create curls or waves.
  • Relaxers: Straighten curly hair by breaking protein bonds.

Safety First

  • Always wear gloves and follow manufacturer instructions.
  • Conduct patch tests to check for allergies.
  • Use proper ventilation to avoid inhaling fumes.

Real-World Impact

Proper chemical handling protects both the stylist and the client, ensuring beautiful and safe transformations.

Examples

  • A colorist performs a strand test before applying permanent dye.

  • A stylist uses a neutralizer after a perm to lock in curls.

In a Nutshell

Chemical treatments change hair structure, requiring careful application and safety measures.

Key Terms

Oxidation
The chemical reaction that occurs during hair coloring, changing hair pigment.
pH
A scale that measures how acidic or alkaline a substance is, important for chemical treatments.