Protectants are substances used to shield materials or living organisms from damage caused by environmental factors, such as moisture, UV radiation, or pests. They can be found in various forms, including sprays, coatings, and treatments, and are commonly used in industries like agriculture, construction, and personal care. For example, pesticides serve as protectants for crops, while waterproof coatings help protect buildings from water damage. In personal care, protectants like sunscreens are applied to the skin to prevent sunburn and long-term skin damage from UV rays. Similarly, hair protectants can be used to guard against heat damage from styling tools. Overall, protectants play a crucial role in preserving the integrity and longevity of various materials and living organisms.