What type of information is included on a Material Safety Data Sheet (MSDS)?

A Material Safety Data Sheet (MSDS) is a crucial document that provides detailed information about the safety and handling of hazardous materials, including chemicals used in cosmetics and beauty treatments like eyelash extensions. The correct choice focuses on ingredient safety and handling instructions, which are essential for ensuring the safe use and management of products.

These sheets typically include aspects such as the chemical composition, potential health effects, emergency procedures, proper handling techniques, and recommendations for protective equipment. This information is vital for professionals working with products that can pose risks if mishandled or improperly applied, as it helps ensure both client and technician safety.

In the context of the other options, client testimonials and application techniques do not pertain to the safety or handling of materials. Testimonials are subjective evaluations of service quality or product efficacy, while application techniques offer guidance on how to properly apply the eyelash extensions but do not include safety information. Pricing details, such as the cost of glue, are not relevant to safety or handling instructions either. Thus, the emphasis on ingredient safety and handling instructions in the correct choice underscores the importance of adhering to safety standards in a professional setting.