Healthy
Conditions
Keywords
the effect of tanning, vitamin D production
Brief summary
Health Canada's Radiation Emitting Devices (RED) Act provides exposure time guidelines for sunbed use. These guidelines are intended to protect sunbed users from overexposure to UV radiation. Overexposure is defined as exposure that exceeds the amount needed for vitamin D production and could lead to skin or eye damage. Acute overexposure induces sunburn. However, the effect of the recommended time exposure schedule on serum 25(OH)D response has not been characterized. Further, it is unknown if the maximum time exposures are required to reach and/or maintain optimal 25(OH)D levels. The aim of the current study is to characterize serum 25(OH)D response to regular sunbed use following the time exposure schedule recommended by Health Canada.
Interventions
RADIATIONSunbed tanning
Invention groups undergo a 12-week tanning protocol that follows Health Canada's RED Act
Sponsors
Vitamin D Society
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* 18 years and older, male or female
Exclusion criteria
* History of skin cancer, granulomatous disease, liver disease, or kidney disease * Photosensitive medications * Pregnancy * Vitamin D supplementation within last 60 days * Sunbed use within last 60 days * Planned travel to sunny destination during study period (January to April 2014)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To characterize serum 25(OH)D response to regular sunbed use, when performed according to the RED Act exposure time guidelines | 12 weeks |
Secondary
| Measure | Time frame |
|---|---|
| To characterize serum 25(OH)D response with respect to sunbed lamp output (100W, 160W and High Pressure). | 12 weeks |
| To characterize serum 25(OH)D level with respect to skin lightness. | 12 weeks |
Outcome results
None listed