Red Light Therapy: What Is It and How Does It Work?

September 4, 2026

Red light therapy has become a popular addition to modern skincare and wellness routines. But what exactly is it, and why are so many people interested in adding red light to their daily routine?

What Is Red Light Therapy?

Red light therapy uses specific wavelengths of red or near-infrared light directed toward the body or skin.

Unlike ultraviolet light, which can damage skin with excessive exposure, red light therapy is designed for controlled exposure using specialized devices.

Different devices use different wavelengths, intensities, treatment areas, and recommended exposure times, so it's important to follow the instructions for the specific product you're using.

Why Do People Use Red Light Therapy?

People use red light therapy devices for a variety of skincare and wellness goals.

Interest in red light therapy has grown because it offers a convenient way to incorporate light-based treatments into an at-home routine.

However, results can vary depending on the individual, the device, its specifications, and how consistently it is used.

How Does It Fit Into a Skincare Routine?

A red light device can be incorporated into a simple skincare routine without requiring a large number of products.

A typical routine might include:

Cleanse your skin.
Follow the instructions for your red light device.
Apply your normal skincare products as appropriate.
Moisturize.
Use sunscreen during the day.

Always follow the manufacturer's instructions regarding treatment duration, distance, frequency, and eye protection.

Consistency Matters

Like many personal-care routines, using a product once is unlikely to tell you much about whether it fits your lifestyle.

If you're using a red light device, consistency and following the manufacturer's recommended routine are more important than simply using it for longer periods.

More exposure isn't automatically better.

Choose the Right Device

Not every red light product is the same.

Before purchasing a device, consider its intended use, wavelengths, treatment area, operating instructions, warranty, and safety information.

A device should be easy enough to use consistently and should clearly explain how it is intended to be operated.

Make Your Routine Work for You

Skincare doesn't have to be complicated.

The goal is to build a routine that is practical, consistent, and appropriate for your individual needs. Red light therapy can be one optional tool to consider as part of that routine.