The Gold PTT by Simfle Stick is an acne treatment based on Selective Photothermolysis of Sebaceous Follicles with Topically Delivered Light-Absorbing Gold Microparticles. It is the using of microparticles of Gold, along with the radiation of laser to effectively reduce the acne by:

1. Cleaning the sebaceous follicles
2. Reduction of sebum production
3. Alleviation of acne lesions

with minimal downtime and discomfort.

Photothermal therapy (PTT) is a kind of Photodynamic Therapies (PDT), refers to the use electromagnetic radiation, commonly in the near infrared (NIR) wavelengths, for the treatment of various medical conditions including cancer. It is considered as the central application of plasmonic nanoparticles in medicine. Among the plasmonic nanomaterials, gold nanoparticles have received considerable attention in PTT due to their high photothermal conversion efficiency, low toxicity, easy synthesis, and functionalization, as well as their easily tuned surface plasmon resonance frequency to the NIR region. The treatment of enlarged facial pores with gold nanoshell-mediated PTT produced excellent results with no side effects.

Delivery of nanoshells into sebaceous follicle can be achieved through Sonophoresis (ultrasound) and laser treatment to achieve localized heating of the follicle.