What is one of the most effective ways to avoid skin overexposure?

Washing hands is indeed a critical part of maintaining hygiene in any beauty-related field, including nail technology. However, it is not the most comprehensive method for avoiding skin overexposure to potentially harmful substances, such as chemicals found in nail products.

Correctly understanding the context of skin overexposure highlights that while handwashing is essential for cleanliness and preventing the transfer of germs, it does not significantly reduce the skin's exposure to harmful substances during nail services. On the other hand, using protective creams creates a barrier that can help shield the skin from these chemicals. Additionally, wearing gloves is another effective method for protecting the skin from direct contact with nail products and minimizing the risk of absorption.

Therefore, the most effective method among the choices provided would focus on actively preventing skin exposure to harmful agents, which underlines the importance of practices such as wearing gloves and using protective creams to truly address the concern of skin overexposure effectively.