The science of light, without the hype

If "red light therapy" sounds like a wellness fad to you, you're in good company — that was our first reaction too. So rather than ask you to take our word for it, this page lays out what the research actually says about light and skin, links to the real studies, and stays honest about what they do and don't prove.

Light as medicine is over a century old

Light earned its place in mainstream medicine long before it reached the wellness aisle. In 1903, the Danish physician Niels Ryberg Finsen received the Nobel Prize in Physiology or Medicine for treating disease with concentrated light — the moment light therapy became a recognized branch of medical science.¹

The modern, LED-based chapter has an unexpected origin: NASA. LEDs first developed to grow plants on space missions were observed to also support faster tissue repair, which reopened decades of research into how light interacts with living cells.² That line of work is now studied under the name photobiomodulation.

The proposed mechanism, in plain terms

The leading explanation is straightforward. Red and near-infrared light is thought to be absorbed deep inside the cell by the mitochondria — specifically an enzyme called cytochrome c oxidase. Researchers propose that this can support the cell's normal energy production (ATP) and downstream signaling.³⁵

In other words, it's a genuine, actively-researched biological mechanism — not a "magic light" story. It's also still being studied, and scientists are clear that the details aren't fully settled. We think that candor is a feature, not a weakness.

Research on light and skin appearance

Red and near-infrared light has been studied specifically for the look of skin. In one of the most-cited controlled trials, 136 participants were assigned to red light, near-infrared light, or no treatment. Compared with the untreated group, the treated groups showed measured improvements in skin roughness, the appearance of fine lines, and ultrasound-measured collagen density — changes confirmed by blinded reviewers and instrument readings, not just self-report.⁴

Two honest caveats belong right next to that result. First, that trial used specific research light sources — not the Aurora Glow mask. Second, the improvements followed many sessions over roughly fifteen weeks, which points straight to the realistic expectation below.

Gradual, and consistency-dependent

Light works with the skin's own slow renewal cycle, so the pattern across the research is patient and repetition-based — the controlled trial above ran about 30 sessions across roughly 15 weeks before measuring change.⁴ Anyone promising an overnight transformation is overselling it. We'd rather set the honest expectation: a simple routine, repeated over weeks, is how this category is studied to work — and patience is part of the deal.

Our honest position

Aurora Glow is an at-home red-light LED mask built for a simple, hands-free ten-minute routine. It is not one of the devices used in the studies above, and we make no medical claims for it. The research on this page is simply why we find the category worth taking seriously — and we'd rather hand you the studies and let you decide than tell you what to believe. That's the whole point of this page.

Sources

Every claim above links to its source. These are studies and records about red and near-infrared light as a field — not about the Aurora Glow device.

1. The Nobel Prize in Physiology or Medicine 1903 — Niels Ryberg Finsen, for the treatment of disease with concentrated light. NobelPrize.org. nobelprize.org/prizes/medicine/1903
2. Whelan HT, Smits RL, Buchmann EV, et al. Effect of NASA light-emitting diode irradiation on wound healing. Journal of Clinical Laser Medicine & Surgery. 2001;19(6):305–314. pubmed.ncbi.nlm.nih.gov/11776448
3. Avci P, Gupta A, Sadasivam M, Vecchio D, Pam Z, Pam N, Hamblin MR. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Seminars in Cutaneous Medicine and Surgery. 2013;32(1):41–52. ncbi.nlm.nih.gov/pmc/articles/PMC4126803
4. Wunsch A, Matuschka K. A controlled trial to determine the efficacy of red and near-infrared light treatment in patient satisfaction, reduction of fine lines, wrinkles, skin roughness, and intradermal collagen density increase. Photomedicine and Laser Surgery. 2014;32(2):93–100. ncbi.nlm.nih.gov/pmc/articles/PMC3926176
5. de Freitas LF, Hamblin MR. Proposed mechanisms of photobiomodulation or low-level light therapy. IEEE Journal of Selected Topics in Quantum Electronics. 2016;22(3):7000417. doi.org/10.1109/JSTQE.2016.2561201