How Does the Tanda Blue Light Therapy Work to Reduce Acne?

What does the Tanda do and how does it affect skin long term? Is it as effective as the Gentle Waves and the Aramis Laser or do they work differently? More wrinkles, less wrinkles, photodamage? Can you use it without the lotion? Can it be used to keep skin clear on a weekly basis? Thank you for your help.

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