Micro-dermabrasion is a mechanical skin treatment that uses an applicator probe to break down skin cells and debris on the skin's surface. There are two main types of micro-dermabrasion systems - one uses aluminum oxide micro-crystals applied to the skin, while the other uses a diamond tipped applicator. Benefits of micro-dermabrasion include softer, more toned skin with reduced fine lines, wrinkles, acne scars, and pigmentation issues. Precautions must be taken to avoid over-exfoliating the skin, including checking the applicator strength and monitoring the skin's reaction.