Maybe you’ve seen an influencer gliding an illuminated red wand across their face or a glowing Jason-like mask on a beauty-savvy friend — these are LED (light ... number of skin-care promises ...

Happy buyers swear the tool has helped them smooth, depuff their skin and improve the look of wrinkles and fine lines.

The light’s wavelengths can go deep into body tissue to promote blood circulation and collagen production, which is why the skin-care industry ... blue and green treatments for addressing ...