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What is Red Light Therapy? Learn the basics of red light therapy and how it fits into everyday wellness routines. How Red Light Works Explore how red and near-infrared light interact with the body at a cellular level. Safety & Best Practices Learn how to use red light therapy safely and build it into your routine.

Warranty & Returns Learn about warranty coverage, returns, refunds, and what to do if there’s an issue with your DEPOWIN product. Orders & Shipping Get information about order processing, shipping, delivery, tracking, and common order questions. Product Support Find product guides, troubleshooting help, care instructions, and answers to common product questions.

Our Story Discover why DEPOWIN was created and what shapes the way we approach everyday wellness. Our Mission See our commitment to making everyday wellness simpler, more accessible and easier to use. Our Technology Explore the technologies behind DEPOWIN products and how we approach thoughtful product design.

Research on Red Light & Skin-Focused Applications

Explore research examining visible red light and photobiomodulation in relation to skin appearance, surface-level responses and other skin-focused applications.

660 nm Red Light for Facial Skin

2025 Randomized Controlled Trial Skin & Surface Wellness
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What the study looked at

A randomized, sham-controlled trial evaluated 660 nm red light PBM in women aged 45–60 using different weekly treatment frequencies.

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What researchers found

The study reported improvements in several facial skin rejuvenation measures following repeated red light PBM sessions.

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Why it matters

The trial provides recent clinical evidence on visible red light under a defined 660 nm treatment protocol and highlights the role of treatment frequency.

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More Skin & Surface Wellness Research

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2025 Evidence-Based Consensus

Clinical Applications and Safety of Photobiomodulation

An evidence-based expert consensus reviewed the clinical use and safety of PBM across multiple applications, including dermatologic and skin-related settings.

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2025 Randomized Controlled Trial

Combined LED Wavelengths for Facial Skin Photoaging

A randomized exploratory study evaluated combined yellow, red and infrared LED treatment for facial photoaging and skin-related outcomes.

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2025 Clinical Study

Red Light PBM and Visible Signs of Skin Aging

A clinical study reported progressive changes in several visible skin-aging measures during repeated red light PBM use, with some effects persisting after treatment ended.

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What to Look For Across Studies

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Wavelength

Was visible red light, near-infrared light or a combination used?

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Treatment Parameters

Consider irradiance, treatment time, treatment frequency and total exposure.

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Skin Outcome

Studies may evaluate appearance, texture, hydration, elasticity or other skin-related measures.

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Study Design

Consider participant numbers, controls, follow-up periods and how outcomes were measured.

Understanding the Evidence

Skin-focused PBM studies may use different wavelengths, devices, treatment schedules, skin areas and outcome measures. Results from one study or protocol should not automatically be assumed to apply to every red light device or skin-focused application.

Research Note:

Research outcomes can vary depending on wavelength, irradiance, treatment duration, treatment frequency, device design, participant characteristics and study methodology.

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