Why must clients avoid certain skincare products before a laser session?

Clients are advised to avoid certain skincare products before a laser session primarily because products containing retinoids, acids, or exfoliating agents can significantly increase skin sensitivity. These ingredients are known for their ability to accelerate skin cell turnover and can make the skin more reactive or prone to irritation. When the skin is sensitive, it may respond more fiercely to the heat and energy emitted by the laser, potentially leading to discomfort, adverse reactions, or even complications such as burns.

The skin's condition prior to the treatment is crucial for both safety and efficacy. If the skin is compromised or overly sensitive, the effectiveness of the laser treatment could be reduced, and the risk for side effects could be heightened. Therefore, proper pre-treatment care that includes avoiding these particular products is essential for a successful and safe laser session.