Which of the following can help a practitioner prevent product overexposure?

Washing hands is essential for maintaining hygiene and can significantly reduce the risk of product overexposure. When a nail technician washes their hands before and after procedures, it helps to remove any residual products from their skin, minimizing the potential for absorption and irritation. Proper handwashing also prepares the technician's hands for safe application of nail products.

While wearing gloves is an effective method to protect the skin from direct contact with products, washing hands is crucial for overall cleanliness and can further mitigate the risk of skin reactions. Similarly, using a vent fan is important for ventilation in the work environment but primarily focuses on removing fumes rather than preventing product contact with the skin. Applying lotion is beneficial for skin hydration but does not effectively prevent product overexposure. Thus, handwashing stands out as a proactive measure that enhances both safety and sanitation for the practitioner.