A Diode laser + Picosecond laser 2 in 1 machine is a type of cosmetic laser device that combines two different laser technologies into a single machine. The diode laser is a type of laser commonly used for hair removal, while the picosecond laser is a newer technology used for tattoo removal, skin rejuvenation, and other aesthetic treatments.

The diode laser emits a concentrated beam of light that is absorbed by the pigment in hair follicles, causing them to heat up and be destroyed. The picosecond laser, on the other hand, emits ultra-short pulses of light that shatter tattoo ink particles and stimulate collagen production in the skin.