Benefits
The Sperti Vitamin D Sunlamp, model D/UV-F, provides the special UVB rays that will generate Vitamin D naturally in your body. Our Vitamin D Lamp is the only FDA recognized ultraviolet product for Vitamin D production in the human body, and independent studies have verified it’s effectiveness. The portable Vitamin D Lamp is easy-to-use and a convenient way to get Vitamin D quickly and naturally.
How to use
Sperti - Vitamin D Lamp
3-5 minutes per session.
3-5 minutes per session.
Need to find the right dose for you? Consider coaching.
Dosing strategy:
3-5 minutes per session. Regular Vitamin D blood testing is encouraged.
Ideal for:
Low Vitamin D
Quality
All vendors are vetted for quality, to ensure they contain the right active ingredients and ratios. Each vendor provides a Certificate of Analysis ℹ️, to ensure accurate dosing, and a product free of contaminants/heavy metals. Further, when brands we work with have been randomly pulled off the shelf and tested by Labdoor, they have tended to score A+ ℹ️.
Efficacy
Before listing products, we compile a list of available research, to determine if claims match the evidence. Likewise, we scour the the internet to gauge people’s experience with each product. Most of the products listed typically score at least [4.5/5 from reviews]. All the studies we’ve found are listed at the bottom of the page, under citations.
Safety
All products listed on the BYB website follow screening before listing, to ensure there’s a history of long-term usage without adverse effects. Many products fall under the FDA’s Generally Recognized as Safe (GRAS) guidelines.
Medication interactions and allergies
Please consult your healthcare professional before making any changes to your lifestyle or regime.
For further information on contraindications and allergies, please visit the vendors website.
Buy from a BYB
This Vitamin D Lamp, model D/UV-F, is the only FDA recognized ultraviolet product for Vitamin D production in the human body.
The Soerti Vitamin D lamp makes it incredibly easy to get your daily dose of Vitamin D in. I wouldn't trust many other brands out there, as many other devices can emit high levels of EMF.

