Final answer:
The 'Look, Touch, Ask' guidelines are used during the analyze step of a microdermabrasion treatment. This crucial step involves observing, touching, and asking questions to ensure a safe and personalized treatment. It precedes the actual treatment, cleansing, and protection stages.
Step-by-step explanation:
The "Look, Touch, Ask" guidelines should be used during the analyze step of a microdermabrasion treatment. These guidelines involve observing the skin (Look), physically examining the skin by touch to feel for texture and abnormalities (Touch), and asking questions to understand any concerns or conditions that could affect the treatment (Ask). This step is crucial for tailoring the treatment to the individual's unique skin type and identifying any potential issues that need to be addressed before proceeding with the actual microdermabrasion procedure.
Before performing microbiological methods to investigate the cellular and metabolic properties of a skin isolate, a sample from the skin must be taken, ensuring it's only from external skin surfaces. During a cleanse, one must use their fingertips to apply a gentle, non-abrasive cleanser and avoid scrubbing, especially if acne is present. Lastly, the protect stage often involves reducing microbial load on the skin through gentle to firm scrubbing and the use of mild chemicals.