Red light , plus other light therapy colors, has three intensity levels plus heat if you prefer,
I found it very relaxing and use Castor oil to or a serum to massage into my neck and face .
Was about $15
USB charging
I brought one of these. I find it easier than using my Gua Sha hand held stone. The only downsides are that it turns on y itself all the time and gets very hot during use.
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