Your personal guide to real-world sun protection
Controlled temperature, no sweat
SPF 50 = SPF 50
40°C, 80% humidity
SPF 50 ≈ SPF 25-30
"Sunscreen is tested in perfect labs. We built SOONLABS to tell you how it performs in the real world."
High UV levels literally exhaust the ingredients in your sunscreen as they work to protect you.
In high humidity, sweat doesn't evaporate. It pools on your skin and physically washes your shield away.
Extreme heat can make sunscreen runny, creating "invisible gaps" in your protection.
Did you know? Humidity over 80% can reduce sunscreen effectiveness by half in just one hour.
Adjust the conditions below to see how your sunscreen's protection changes
Effective Protection (RealFeel SPF)
Safe for a stroll
Minimal risk. SPF 15-30 recommended.
The Sun is Active. Don't forget your hat.
SPF 30-50 recommended. Seek shade during peak hours.
The Danger Zone. Seek shade between 11 AM and 4 PM.
SPF 50+ essential. Limit outdoor time.
Maximum Alert. Your skin's worst enemy today.
Maximum protection required. Avoid midday sun.
Physical tools that help you apply the "How It Works" logic in real life
UV detection stickers change color when your sunscreen has degraded, helping you see when it's time to reapply. They prove our "Sweat & UV" math is real.
Perfect for real-time monitoring
Since heat degrades sunscreen, an insulated pouch or cooler bag keeps your sunscreen at a stable temperature, preventing the "Heat Melt" from degrading your protection before you even apply it.
Maintains optimal temperature
Because we mention sweat-resistance, a Silicone Face Scrubber ensures the "Shield" is fully removed at night to prevent pore-clogging.
Ensures proper removal