CMP Chemical Services & Safety 2 — Questions and Answers
Question 1: Which pH range is considered ideal for chemical exfoliants used in pedicure services?
- pH 1.0–2.0
- pH 3.0–4.0 (Correct answer)
- pH 7.0–8.0
- pH 9.0–10.0
Correct answer: pH 3.0–4.0
Chemical exfoliants such as AHAs work most effectively at a pH of 3.0–4.0, which is acidic enough to loosen dead skin without causing severe irritation.
Question 2: A client reports a burning sensation immediately after a callus softener is applied. What is the FIRST action the technician should take?
- Apply a neutralizer over the product
- Rinse the area thoroughly with cool water (Correct answer)
- Dilute the product with a carrier oil
- Document the reaction and continue
Correct answer: Rinse the area thoroughly with cool water
Immediate thorough rinsing with cool water removes the chemical and prevents further tissue damage.
Question 3: Glycolic acid is classified as which type of chemical exfoliant?
- Beta hydroxy acid (BHA)
- Alpha hydroxy acid (AHA) (Correct answer)
- Polyhydroxy acid (PHA)
- Retinoid
Correct answer: Alpha hydroxy acid (AHA)
Glycolic acid is the most common alpha hydroxy acid (AHA), derived from sugar cane and widely used for exfoliation.
Question 4: When mixing two chemical solutions for a pedicure treatment, what is the safest practice?
- Add chemicals to water, never water to chemicals (Correct answer)
- Mix equal volumes at room temperature
- Always heat the solution to activate it
- Combine them in a metal container for stability
Correct answer: Add chemicals to water, never water to chemicals
Adding chemicals to water (not the reverse) prevents dangerous exothermic reactions or splashing of concentrated chemicals.
Question 5: Which document must a nail technician consult before using any chemical product on a client?
- Client intake form only
- Safety Data Sheet (SDS) (Correct answer)
- Manufacturer's marketing brochure
- State licensing board bulletin
Correct answer: Safety Data Sheet (SDS)
The Safety Data Sheet (SDS) provides critical hazard, handling, first aid, and disposal information for every chemical product.
Question 6: Salicylic acid differs from AHAs in pedicure use primarily because it is:
- Water-soluble and hydrophilic
- Oil-soluble and can penetrate into pores (Correct answer)
- Derived from citrus fruits
- A stronger alkaline agent
Correct answer: Oil-soluble and can penetrate into pores
Salicylic acid is a beta hydroxy acid (BHA) that is oil-soluble, allowing it to penetrate into follicles and dissolve sebum-based debris.
Question 7: A chemical callus softener containing urea works primarily by:
- Dissolving the nail plate
- Hydrating and breaking down keratin bonds (Correct answer)
- Raising the skin's pH to alkaline levels
- Acting as an antimicrobial disinfectant
Correct answer: Hydrating and breaking down keratin bonds
Urea is a humectant and keratolytic that draws moisture into the stratum corneum and breaks down protein bonds in thickened skin.
CMP Chemical Services & Safety 2
Which pH range is considered ideal for chemical exfoliants used in pedicure services?