Summary
Molly McLaughlin interviews Cort Christie, CEO of Sperti Sunlamps, about how UVB light therapy can improve vitamin D levels, immunity, and sleep quality. Christie explains the science behind the Sperti lamp, which has been FDA-recognized since the 1940s for its ability to stimulate vitamin D production through targeted UVB exposure. They discuss how vitamin D status directly impacts sleep quality through its role in melatonin regulation and circadian rhythm alignment. Christie covers practical usage protocols, recommending sessions of two to five minutes depending on skin type, and explains why the Sperti lamp offers a safer alternative to tanning beds by limiting exposure to only the beneficial UVB wavelengths needed for vitamin D synthesis without excessive UVA that causes skin aging.
Key Points
- Sperti Sunlamps have been FDA-recognized since the 1940s for stimulating vitamin D production through targeted UVB exposure
- Vitamin D status directly impacts sleep quality through its role in melatonin regulation and circadian rhythm alignment
- The Sperti lamp uses only UVB wavelengths needed for vitamin D synthesis, avoiding excessive UVA that causes skin aging
- Recommended usage is two to five minutes per session depending on skin type, every other day
- Adequate vitamin D levels support immune function, with deficiency linked to increased susceptibility to respiratory infections
- The lamp provides a practical solution for people in northern latitudes where natural UVB exposure is unavailable for up to six months per year
- Christie recommends testing vitamin D blood levels before and after using the lamp to verify individual effectiveness
Key Moments
Sperti lamp has been FDA-recognized since the 1940s
McLaughlin introduces the episode topic of using light to impact circadian health, noting that the Sperti lamp has been FDA-recognized for vitamin D production since the 1940s, making it one of the most established UVB therapy devices.
"Our episode today is all about light. I know we speak a ton about light on this podcast and for good reason because it is the most important lever to impacting your circadian health. Of course, the flip side of light being darkness."
Vitamin D deficiency directly impacts sleep quality
Christie explains the connection between vitamin D status and sleep quality, noting that vitamin D plays a role in melatonin regulation and circadian rhythm alignment, making adequate levels essential for good sleep.
"And we want to always understand some of the latest options that we have to support our journey in having bright days and dark nights. And our guest, Court Christie, is going to help share some innovative approaches to this."
Sperti lamp avoids UVA skin aging while delivering UVB for vitamin D
Christie explains that the Sperti lamp focuses on UVB wavelengths specifically needed for vitamin D synthesis while avoiding the excessive UVA light found in tanning beds that causes skin aging and damage.
"Spurdy and the Alaska Northern Lights Company. So first off, I've mentioned Spurdy a number of times on this podcast because it is the only FDA cleared lamp that actually produces vitamin D from a lamp."
