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A
A product's price
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B
A product's hazards, safe handling, ingredients, and first-aid measures
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C
A client's history
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D
Salon hours
Why this is the answer
A Safety Data Sheet (SDS) provides important safety information about a product, including its hazards, safe handling and storage, ingredients, protective measures, first-aid steps, and what to do in case of a spill or exposure. Manufacturers provide an SDS for products that contain potentially hazardous chemicals, and salons must keep them accessible to staff. SDS information helps cosmetologists use products safely and respond correctly to accidents. Knowing the purpose of the SDS is part of the chemical-safety content tested on the exam.
Source: Scientific Concepts — Safety Data Sheets