Tungsten needles can be used for microneedling in cosmetic applications. Microneedling is a minimally invasive cosmetic procedure that involves using a device with small needles to puncture the skin and stimulate collagen production. Tungsten needles are often used for microneedling because of their high strength and durability, which allows for multiple uses without bending or breaking. Additionally, tungsten needles can be manufactured to very small diameters, making them ideal for creating the small punctures needed in microneedling.