What should be considered when selecting the chemical solution for a perm?

• A. The strength of the curl desired
• B. Hair color
• C. Owner's preference
• D. Time of day

Answer: (A)

The main factor when choosing the chemical solution for a perm is the strength of the curl you want to achieve. The reducing perm solution breaks and reshapes the hair’s disulfide bonds, so using a stronger solution (or longer processing) creates a tighter curl, while a milder solution yields looser waves. Hair color, the client’s personal preference, or the time of day don’t determine the chemical strength required—the aim is to match the solution’s strength to the desired curl and the hair’s condition to avoid damage.