Every morning you diligently apply sunscreen, but do you know if your sunscreen really holds up while sitting in the car or working by the window? Studies show that up to 90% of skin aging comes from the ultraviolet rays we “can’t feel.” We always rely on weather app indexes to guess, until fine lines and spots appear and we suddenly realize. Instead of spending a lot of money on repairs afterward, it’s better to precisely track every accumulated UV damage from the source.

It’s Jewelry, and Also Your Sunscreen Strategist

Past UV sensors on the market often looked like medical clips—not only obtrusive but easy to forget on your vanity. The90 Gem completely reverses this pain point with its design logic. It’s a highly textured, refined necklace available in gold and silver, looking like a high-end accessory you wear daily to style your outfits.

Because it’s so beautiful that you won’t want to take it off, it truly achieves the original intent of “all-day tracking.” You don’t need to sacrifice aesthetics to monitor data; it perfectly integrates into your wardrobe and lifestyle.

Instantly Capture UVA/UVB, Reject “Feeling” Sunscreen

Stop trusting weather information on your phone—that’s just regional averages. The90 Gem’s built-in high-sensitivity sensor can instantly monitor the UVA (causing aging) and UVB (causing sunburn) you’re exposed to at the moment.

What’s even more remarkable is that it can detect ultraviolet rays through glass. Think about it: car windows during commute, office seats by the window—these are all invisible UV culprits. Paired with the dedicated app, you can clearly see your accumulated exposure throughout the day, instead of blindly reapplying every two hours.

Personalized Anti-Aging Guide Tailored for You

Market products usually just throw a bunch of cold data at you, but The90 chooses a smarter approach. It builds a personal skin profile based on your skin tone, sunscreen habits, and even sensitivity, and provides specific recommendations.

This product was developed with the participation of world-renowned UV expert Dr. Richard Weller, ensuring the advice given is not guesswork but precise recommendations based on skin science. From “When should I reapply sunscreen” to “How long can I enjoy today’s sunlight,” it’s your personal sunscreen advisor.

Want to see its actual operation and unboxing test?
📺 Click to watch The90 Gem UV Tracker introduction video

Why Do You Need One?

If you’re someone who values skincare but doesn’t want to be tied down by complicated tech accessories, The90 Gem is the perfect solution. It doesn’t require you to learn complex data analysis or change your existing lifestyle habits.

Suitable for:

• Anti-Aging Enthusiasts: Those who don’t want invisible UV rays to steal their skin’s elasticity.
• Commuters: Office workers long exposed to UVA in the car or by windows.
• Beauty Enthusiasts: Those who want sunscreen to deliver maximum benefits with precise reapplication.

Stop letting sunscreen rely on luck. Wear The90 Gem and make every sunscreen application precise and effective, taking control of your youth back into your own hands.