Straight answers

Almost every cell you own has mitochondria, the power plants that make ATP, your body’s energy currency. One enzyme inside them, cytochrome c oxidase, absorbs red and near-infrared light, and studies show that changes how the cell makes energy and signals for repair.

Think of a solar panel bolted onto a power plant. It doesn’t add fuel. It helps the plant run the fuel it already has. Read the full science.

No. Tanning and sunburn come from ultraviolet light, wavelengths shorter than 400 nanometers. Our devices use red at 660 nm and near-infrared at 850 nm: more than twice as long, with no UV. Red light won’t tan you.

Hold a flashlight against your fingertip in a dark room and it glows red. Blue and green get absorbed on the way in; red makes it through. Researchers call this the optical window, roughly 650 to 1,350 nm, where blood and water absorb the least.

660 nm red is absorbed in the skin, which is why skin studies use it. 850 nm near-infrared is invisible to you and travels deeper, toward muscle and joints.

Heat is something you feel. The effect studied in red light therapy depends on color, not warmth: specific wavelengths get absorbed by one specific enzyme in your mitochondria. A space heater warms the room. It doesn’t change how your cells make energy.

Think weeks, not hours. Skin and muscle rebuild on their own schedule, and the trials we cite measured results after 4 to 15 weeks of regular sessions: a 76-person wrinkle trial ran 4 weeks, and a 136-person collagen trial ran 30 sessions. Consistency beats intensity.

Yes. The field began in a Budapest lab in 1967 and now has thousands of published papers, including a meta-analysis of 16 randomized trials in The Lancet. We name every study we cite, with journal and year, on The Science page.

Three to five sessions a week: about 10 minutes for face devices and 10 to 20 minutes for body devices. Start on a low intensity and let the timer end each session. Light has a dose curve, like coffee: more isn’t better, regular is better.

Either. Your eyes have a body-clock sensor that’s most sensitive to blue light and barely registers red. That’s why a campfire feels like night and a phone screen feels like noon, and why an evening session fits right before bed.

Use it on clean, dry skin so nothing sits between the light and your skin. Apply serums and moisturizer after the session.

Yes, on different areas, like a face mask while Valles does your back. Just don’t stack two devices on the same patch of skin in one session: dose adds up.

Let the timer end the session so the device switches off on its own, and don’t sleep with one running. Treat it as a 10 to 20 minute session, not a nightlight.

Wipe it with a soft, slightly damp cloth after use. Never put a device in the washer or submerge it.

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Yes. Request a return within 30 days of receiving your order by emailing info@tharsyn.com. The item needs to be unused and in its original packaging; once your return is approved, we send you a label. Full conditions are in the refund policy.

Email info@tharsyn.com within 48 hours of delivery with photos of the device and the packaging, and we’ll make it right.

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