Contact KeepSunshine

Have a question, feedback on our calculators, or a scientific correction? We’d love to hear from you.

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Direct Editorial Email

For all reader feedback, tool bug reports, device review inquiries, or scientific citations:

[email protected]

⏱️ We personally read every email and aim to respond within 24 to 48 business hours.

How We Can Help

🔬 Scientific Corrections

Found a typo or an outdated photobiology paper citation? Let us know. We update our models promptly when new research is published.

💡 New Tool Requests

Have an idea for a circadian calculator or sleep tool you wish existed? We build tools directly based on community suggestions.

📦 Device Testing Suggestions

Want us to measure the actual distance lux of a newly released SAD light box or sunrise clock? Send us the model details.

🤝 Media & Licensing

For press inquiries, quotes from our research team, or embedding our circadian tools into educational platforms.

Frequently Asked Inquiries

Q: Can you provide personal medical diagnosis or dosage prescriptions?
A: No. KeepSunshine provides educational tools and general photobiology guidance only. We cannot prescribe treatments for clinical depression or ocular disorders. Please consult a licensed physician or psychiatrist.

Q: Do you accept payment in exchange for positive product ratings?
A: No. We strictly decline all paid review offers. Our distance-based reviews are based on physical lux meter measurements and optical physics, never sponsored checks.