Final answer:
Professional chemical peels and certain mechanical exfoliation devices can be used as standalone treatments and require additional training. The use of alcohol-free products and rinsing with lukewarm water are recommended post-exfoliation.
Step-by-step explanation:
Exfoliant products that can be used as a stand-alone treatment and require additional training typically include professional chemical peels and certain types of mechanical exfoliation devices. Professionals must have proper training to use these products safely and effectively, as they can lead to complications if used improperly. In general, it's important to use only alcohol-free products and avoid any that may irritate the skin, such as harsh astringents or exfoliants. When caring for the skin after exfoliation, one should rinse with lukewarm water and avoid very hot or cold water, both of which can further irritate sensitized skin.