Final answer:
The safe and effective minimum distance for an infrared light to be placed from a client's face during a facial is 30 inches. This distance is crucial for maintaining the balance between efficacy and safety, adhering to health and beauty industry standards.
Step-by-step explanation:
When it comes to administering a facial using infrared light, safety guidelines must be strictly followed to ensure the client's comfort and to avoid any potential harm, such as burns or excessive heat exposure. The infrared light should be positioned at a safe distance to prevent any adverse effects while still accomplishing its intended purpose of improving skin health through increased blood circulation and relaxing the muscles. The recommended minimum distance between the infrared light and the client's face is typically suggested by health and beauty professionals and is important to adhere to in a spa or clinical setting. About options provided, while there might be various guidelines depending on specific equipment and its intensity, a generally accepted minimum safe distance is often around 30 inches (approximately 76 cm).
Therefore, after evaluating the safety measures, the correct option for the minimum distance an infrared light must be placed from the client's face during a facial is d. 30". This distance helps in maintaining a balance between effectiveness and safety, ensuring that the client receives the benefits of infrared therapy without any risks associated with too close proximity.