Cosmetology and Beauty Therapy

Terminal hair is the thick, deep, coarse, and typically pigmented hair found on the scalp, eyebrows, and, in adults, in the pubic and axillary regions.

Using excessive crystals during microdermabrasion can cause skin irritation or damage; the amount should be controlled based on the client's skin needs.

Professional skincare requires customizing treatments based on the specific needs and condition of the client's skin.

Microdermabrasion is a mechanical exfoliation that can be too abrasive for sensitive or couperous (red/fragile) skin.

Crystals used in microdermabrasion are specific materials (like aluminum oxide) and are not exclusive to a single machine, though they are designed for use with specific equipment.

Chemical exfoliation removes the outer layer of skin, making it more susceptible to UV damage; sun protection is essential.

Microdermabrasion provides a more significant mechanical exfoliation of the stratum corneum compared to a standard 30 percent AHA peel.

Aggressive treatment can lead to skin damage, inflammation, and scarring; treatments should be performed at a safe, effective level.

Nonablative treatments stimulate collagen production beneath the skin surface without removing the top layer of skin (the epidermis).

Exfoliation removes dead skin cells, which allows subsequent products (like serums or masks) to penetrate more effectively.

Aloe vera is well-known for its soothing, hydrating, and anti-inflammatory properties, making it ideal for sensitive or mature skin types.

In body treatments, it is standard practice to begin applying products on the legs, moving upward toward the torso, to ensure systematic coverage and comfort.

Photodynamic therapy (PDT) uses a photosensitizing agent and a light source to treat precancerous skin lesions, most notably actinic keratoses.

Oily skin is a skin type, not a medical contraindication for chemical exfoliation. Conversely, pregnancy, active herpes simplex, and photosensitizing medications are all significant contraindications.

Preoperative care involves preparing the patient both physically and mentally. A key part of the esthetician's role is providing support to help the patient remain calm and prepared for the procedure.