Light, honestly
Devices that do one thing, and say so.
Red and near-infrared light for face, body and scalp, and hair growth caps that carry the diode counts to back it up. Every product page tells you what it does, what it does not, and what the studies measured. Sometimes the answer is: not this one.
Which light do you need? Or none.
Pick what you are trying to change and where. If a device is the wrong tool for it, we say so rather than sell it.
The ones that change a room
Full-body and full-face devices. More diodes, more area, fewer minutes. Each one lists its wavelengths and diode count on the page, not in a footnote.
It does not treat acne. The studied wavelength for acne is blue, around 415nm, and we do not sell it.
It does not work in a week. The skin studies run eight to twelve weeks; the hair studies run sixteen to twenty-six. If you will not keep a schedule, do not buy a device.
It does not replace a dermatologist, sun protection, or a diagnosis. A mask is a tool, not a plan.
Skin. Red at 630 to 660nm, three to five sessions a week, produced measurable improvement in tone and fine lines over eight to twelve weeks in controlled trials.
Pain. Near-infrared at 850nm reaches deeper tissue; participants reported less joint and muscle pain compared with sham devices.
Hair. 650nm-class caps and combs increased hair count versus sham over sixteen to twenty-six weeks in people with pattern thinning. Results vary, and stop when you stop.
Hot sellers
Not light therapy. People buy them with it anyway, so they are here, priced the same honest way.
Asked before buying
Is a $600 mat better than a $70 panel?
Only if you want to treat the whole body at once. The panel puts the same wavelengths on one region at a time. Buy for the area you will actually treat, not the bigger number.
How long until I see anything?
Skin: eight to twelve weeks of three to five sessions. Hair: four to six months, ten minutes most days. Take a photo on day one in the same light, or you will not be able to tell.
Can I use it with retinol or after a peel?
Red light is not a peel and does not thin skin, so it is usually fine with retinoids. Skip it on freshly peeled or lasered skin until your clinician clears it.