When HN users recommended it
1 HN user recommended this in 2020, in one comment.
20072026
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
1 HN user recommended this in 2020, in one comment.
Each tall tick is one HN user's first recommendation. A short tick is the same user again. Click a tick to jump to the comment.
The "Vitamin D Lamp" sold by Sperti is FDA approved:
https://www.amazon.com/Alaska-Northern-Lights-Sperti-Sunlamp...
It has a 5 minute timer and the instructions say to use it twice a week maximum, unless directed to do otherwise by a doctor. It has four flourescent tubes tuned to optimally emit UVB for vitamin D creation. It comes with safety goggles that have to be worn when using it. You have to stay 17" away from the lamp when it is on. Sperti says it is the only FDA approved vitamin D lamp in the USA. It's expensive but apparently the only one of its kind at the moment, until the UVB LED's take over the market.