The90 Gem vs Helio Track

The jewelry-inspired UV sensor that tracks what your skin actually experiences, so you can protect how you age while harnessing the health benefits of the sun.

Helio Track helps you make the most of natural sunlight by tracking your real-time vitamin D production and burn risk based on your location, skin type, and current UV conditions. WHAT IT DOES - Calculates real-time vitamin D (IU) production during sun sessions - Tracks your progress toward the daily 1,000 IU vitamin D goal - Shows your safe exposure time based on your skin type and UV index - Identifies optimal windows for red light therapy (morning and evening) - Forecasts tomorrow's best times for vitamin D synthesis and red light exposure - Tracks daily streaks when you hit your vitamin D goal safely HOW IT WORKS Enter your city, select your skin type (1-6), and set your typical skin exposure level. Helio Track uses real-time weather data and astronomical calculations to show you exactly how much vitamin D you're generating and when your burn risk becomes significant. FEATURES - Real-time sun elevation and UV index display - Live session timer with vitamin D and burn dose tracking - Daily progress tracking with streak system - Tomorrow's optimal exposure forecast - Sunscreen toggle to adjust burn risk calculations - Customizable notification reminders for morning red light, vitamin D window, and evening red light - Educational insights on vitamin D and sun exposure For informational purposes only. Not a substitute for medical advice.