APREUTY High Frequency Machine The APREUTY High Frequency Machine ($33) comes with four heads and can be used to target different concerns. The circular mushroom-head tube is for broad areas like the cheeks and forehead, the oval tongue-shaped tube is for sensitive areas such as de-puffing the under eyes, and the bent tube with a pointed end is for spot treating acne. Image Source: amazon.com APREUTY High Frequency Machine $33 from amazon.com Buy Now