Red Light for Muscle Recovery: What Athletes Need to Know

More athletes are adding red light to their recovery routine. Here's what the research says, and why timing before exercise matters.

Does red light help muscle recovery? Maybe a little, and timing matters. Reviews find low-certainty evidence that red or near-infrared light applied before exercise reduces muscle soreness afterward. Most of those studies used lasers or clinical LED arrays, so results may not carry over to every panel. It's worth trying if you're curious, not a guaranteed fix.

What Does the Research Show?

Reviews of photobiomodulation and exercise (Vanin et al., 2018; Canez et al., 2025) find low-certainty evidence that light applied before exercise reduces muscle soreness afterward.

One more caveat: most of these studies used lasers or clinical LED arrays at specific doses. Results may not carry over to every panel, including ours.

What Does "Low-Certainty" Mean for You?

It means the direction looks promising, but the studies have limits, and better ones could change the picture. In practice, it's a reason to try red light with realistic expectations, not a reason to expect a big change. If you don't notice much, the research doesn't say you should.

Should You Use It Before or After Exercise?

The evidence we cite is about light used before exercise. So if you want to follow the research, book your session before a workout, not only after. After-workout sessions are fine if you enjoy them, but that's not what these studies looked at.

What Does a Red Light Session Look Like?

1. Tell us about any medications, eye sensitivity or pregnancy first.
2. Uncover the muscle group you want to focus on, since the light has to reach your skin.
3. You sit or stand about 12 inches from the panel. It feels warm, not hot.
4. New clients start at about 2 minutes per area at a low intensity, then build up over about two weeks.
5. Depending on how many areas you work on, a session runs roughly 3 to 30 minutes, with no downtime.

For more on building a routine, see how often to do red light therapy.

How Does Red Light Compare to Other Recovery Options?

• NormaTec compression: reviews find trivial-to-small effects on perceived soreness and muscle function, and moderate-certainty evidence that it does not reduce soreness at 24 hours. Many athletes like how it feels.
• PEMF: most of the research is in knee osteoarthritis, with mixed and modest results. Read about PEMF for post-workout recovery.
• Infrared sauna: a relaxing heat session. The recovery research is mixed and inconclusive.

None of these replaces sleep, food and sensible training. Some clients pair red light with another session in the same visit and decide over time which they like.

Should You Buy a Home Device Instead?

You can, but keep the research in mind. Home panels vary a lot in power and wavelength, and most studies used lasers or clinical LED arrays. Trying a session first lets you see how it feels before you spend money. Our home vs. professional red light guide lays out the trade-offs.

How Can You Tell If It's Helping You?

Pick a type of workout you do regularly. For a few weeks, book red light before some of those sessions, and jot down how sore you feel the next day. Compare that to similar workouts without it. It's not a lab study, but it's a fair personal check. If you can't tell the difference, that's a useful answer too.

Who Should Skip Red Light?

• Anyone taking a photosensitizing medication. Some antibiotics, acne medications and other drugs make skin more sensitive to light, so ask your pharmacist if you're not sure.
• Anyone whose eyes are sensitive to bright light, or who has an eye condition.
• Anyone who is pregnant.
• If you've had surgery recently, get clearance from your surgeon first and bring it to your first session.

If soreness is sharp, lasts much longer than usual, or comes with other symptoms, see your doctor. Red light is a wellness session, not medical care.

Your first session is free. Ask us for current session and package pricing: (973) 908-1524. Call us or book online, and learn more on our red light therapy page.

Frequently Asked Questions