Expose the UV Safe Meter to direct sunlight for 20 seconds, then compare the color in the sun's center with the meter bar to find the approximate UV intensity.
Human skin is sensitive to UV light, although the level of sensitivity may differ for each individual. An overexposure to UV radiation can cause sunburn and some forms of skin cancer. In humans, prolonged exposure to solar UV radiation may result in acute and chronic health effects on the skin, eye, and immune system.
UV can damage collagen fibers and thereby accelerate aging of the skin. It also destroys vitamin A in skin which may cause further damage.
In the past UV was considered less harmful, but today it is known, that it can contribute to skin cancer via the indirect DNA damage.
Ratings and Reviews
"The saliva cortisol test confirmed what I was worried about. It was the lowest priced test I could find and even had a doctor''s assessment to address the results (which were very comprehensive and detailed). I have paid a lot of money in my dr''s office for the exact same thing. Glad I found your company! Thanks! "
"Your product is easy to use and very economical. Delivery is fast and the service is great!"
"Good Afternoon Customer Rep., It was very nice to speak with you on the phone, your as nice on the phone as in your email. I really appreciate the time that you took to help advise me. Sincerely,"
"Fast, effective service at an acceptable price. Process is easy to use and I've had 100% success using it."
"got exactly what i ordered timely and at a good price"