No Im not talking about the therapeutic effects of visiting your local red light district, Im talking about red bulbs in a tanning bed.
The tanning salon I use now has one and my massage therapist often brings out the red light and leaves it on problem areas while shes working on the rest of me.
Supposedly there are a lot of benefits for the skin, but to me the interesting part is the claims to help aching joints and muscles, something Im sure many of us have felt.

http://www.redlighttherapyinc.com/