“For me, prevention has always been the foundation of beauty, especially when it comes to the sun.”
✦ Lauryn Bosstick, The90™ investor and founder of The Skinny Confidential
Introducing, The90™ Gem.
The first personal sun intelligence system that measures the UV exposure you can't see so you can protect your skin's future in real time.
Personalized to your skin
Personal recommendations based on your unique skin profile, genetics, habits, and sensitivities.
Tracks the rays that matter
Measure both UVA (aging) and UVB (burning) in real time – including the exposure that quietly adds up through windows, cars, errands, and more.
Built for everyday life
Wear it with your existing jewelry, pair the Gem with The90™ app, and get guidance on when it's time to reapply, cover up, or get out of the sun.
Special Offer Pricing
The personal UV sensor and connected app that shows you exactly what your skin is exposed to and what to do about it – so you can age smarter in the sun.
Orders placed today will ship in June
Save $100
Know your sunburn window
See your estimated time to burn based on real-time UVB exposure (rays that cause sunburn), sunscreen use, and skin profile.
Track what silently adds up
Monitor UVA exposure (rays linked to premature photoaging and long-term skin damage) even when you can't feel or see it.
Build smarter sun habits
See your daily sun exposure patterns, track how your habits add up, and get personalized recommendations on how to protect your skin over time.
Built With Leading Skin and UV Expert
Dr. Richard Weller
World Renowned UV Specialist & Dermatologist
Chief Medical Officer
Own your light. Protect your glow.
