Red and near-infrared light therapy delivers specific wavelengths into tissue to reduce pain, ease stiffness, and support recovery — a mechanism known as photobiomodulation. Fit Body Therapy in Los Altos runs three delivery methods: a full-body infrared sauna, a handheld panel for targeted work, and a cupping device with light built in. Sessions are one-on-one with Angelo dela Cruz, practicing since 1996.
Red Light vs. Infrared — The Terms People Confuse
These get used interchangeably and they are not the same thing.
Red light (roughly 630–660nm) is visible and works closer to the surface — skin and superficial tissue. Near-infrared (roughly 810–850nm) is invisible and penetrates further, reaching muscle, tendon, and joint structures. Far-infrared, what an infrared sauna primarily emits, works mainly by heating tissue rather than through the photobiomodulation pathway.
For musculoskeletal pain, near-infrared is usually the relevant band, which is why depth of penetration matters more than the color you can see. Consumer panels are frequently sold on brightness — a red glow is reassuring — while the wavelengths that reach a tendon are the ones you cannot see at all.
The Three Tools in Practice
1. Infrared Sauna — Full Body
Used as a warm-up before bodywork or a wind-down after. Heat reduces muscle tone and increases tissue extensibility, which makes hands-on work more productive and more comfortable. Because infrared heats you directly rather than heating the air, it is tolerable for people who cannot handle a traditional sauna.
2. Handheld Panel — Targeted
Concentrated light delivered to a specific structure — a tendon, a joint, a persistent area of local inflammation. This is where the strongest evidence sits: photobiomodulation has reasonable support for tendinopathy, joint pain, and localized soft tissue recovery.
3. Cupping Device with Integrated Light
Mechanical decompression and light delivered at the same time, to the same tissue. Useful for shoulder tension, low back restriction, and areas where compression alone has not produced change.
What It Reasonably Does — and Does Not
Light therapy has become a wellness product category, which means the claims have gotten loose. Worth separating.
Reasonably supported: reduced local pain and stiffness, support for tendon and soft tissue recovery, reduced post-exercise soreness, improved local circulation.
Not supported: that it detoxifies you, clears blockages, or resolves structural problems on its own. Light is a useful adjunct that makes manual therapy more effective and recovery faster. It is not a substitute for treating the mechanics causing your pain — and any clinic selling it as a standalone answer to a musculoskeletal problem is overselling it.
Who Benefits Most
- Tendon pain — tennis elbow, Achilles, plantar fascia, rotator cuff
- Joint stiffness and arthritic discomfort
- Athletes managing training load and post-session soreness
- People too sensitive for deep manual work, where light lowers pain enough to make hands-on treatment tolerable
- Anyone recovering from injury and cleared for soft tissue work
Choosing Red Light Therapy in Los Altos
Fit Body Therapy is at 600 Fremont Avenue in the Rancho Shopping Center, serving Los Altos, Mountain View, Palo Alto, and Sunnyvale.
- Three delivery methods — sauna, targeted panel, and light-integrated cupping
- Applied clinically — directed by assessment and paired with manual therapy, not sold as a standalone package
- Practicing since 1996 — CAMTC certified, AMTA Professional Member
- Private suite, free onsite parking; HSA and FSA friendly
Frequently Asked Questions
Is red light therapy the same as infrared therapy?
Not quite. Red light is visible and works nearer the surface; near-infrared is invisible and penetrates deeper into muscle, tendon, and joint. For musculoskeletal pain, near-infrared is generally the more relevant wavelength.
How many sessions before I notice something?
Reduced pain and stiffness are often noticeable after one or two sessions. Tendon recovery is a longer process measured in weeks, and light works best as one component of a broader plan.
Should I buy a home red light panel?
For general recovery, a reasonable panel can be worthwhile. Check the wavelengths and actual output rather than the marketing — many consumer devices are underpowered. For a specific injury, professional application at correct dose and duration is more reliable.
Are there reasons not to use it?
Light therapy is not applied over active cancer sites, and pregnancy, photosensitizing medications, and certain skin conditions are screened for beforehand.
Book a session in Los Altos and get light therapy applied to a specific problem rather than sold as a subscription.