Nail polish is generally low risk, but fumes and certain solvents are the main concerns. “3-free/5-free/10-free” formulas are a conservative choice. Avoid frequent use in poorly ventilated areas and heavy acetone exposure. Apply in a well-ventilated room. Gel/acrylic services may increase exposure; postponing in the first trimester is conservative. Stop if you develop irritation or dermatitis.