Our Experts


Joshua Gonzalez, M.D.

Josh is a board-certified urologist who is fellowship-trained in Sexual Medicine and specializes in the management of male and female sexual dysfunctions. He completed his medical education at Columbia University and his urological residency at the Mount Sinai Medical Center. Throughout his career, Dr. Gonzalez has focused on advocating for sexual health and providing improved healthcare to the LGBTQ+ community.

Dr. Gonzalez serves as an official Sexual Health Advisor to Astroglide Lubricants. He serves on the board of directors for the International Society for the Study of Women's Sexual Health. He has appeared on The Doctors television show, has been featured in Vogue magazine, and is a medical contributor to Men’s Health, Cosmopolitan, and Oprah magazines.

He is a sexual health expert that continues to build a robust following on TikTok where he uses social media 
to educate the public on sexual health.


Brian L. Steixner, M.D.

Brian is a board-certified urologist and an expert in men’s sexual medicine. During his career, Brian has treated thousands of men with sexual health issues including erectile dysfunction, premature ejaculation, and male infertility. He teamed up with Josh to develop Popstar Labs after years of research and collaboration with the goal of providing the highest quality options for men looking to improve their sexual confidence and performance.

He completed his General Surgery and Urology training at The University of Pennsylvania and The Children’s Hospital of Philadelphia, one of the busiest and most comprehensive programs in the nation. During his surgical training, he received the Clinical Excellence Award in Urology from the University of Pennsylvania and the Resident Achievement Award from the Society of Laparoendoscopic Surgeons.

Dr. Brian Steixner has been a medical contributor for Men’s Health Magazine, Details Magazine, and NBC. He has been featured on FOX News, Sirius Doctor Radio, Forbes, Livestrong, and The New York Post.