An electric heater is used for a _________ manicure.

An electric heater is used for a hot oil manicure because this type of manicure incorporates heated oils to help moisturize and soften the skin and cuticles. The process involves warming the oil to a comfortable temperature that will penetrate the skin more effectively, promoting better hydration and relaxation during the treatment. The use of an electric heater ensures that the oil remains at a consistently warm temperature, enhancing the overall effectiveness of the service.

In contrast, waterless manicures focus on using no water at all, turning instead to products that can dissolve and manage cuticles without soaking. Spa manicures typically involve soaking the hands and may not require heat, as they often include a variety of treatments. A basic manicure usually consists of simple nail care and grooming without the additional pampering or treatment elements that hot oil manicures offer.