Red Light Therapy for Stretch Marks: Does It Help?

Short answer: Red light therapy can help improve the color and texture of stretch marks by supporting collagen and elastin in the skin — especially newer red or purple marks. It rarely erases them completely, particularly mature silvery-white ones, so the realistic goal is softer, more blended marks over a couple of months of consistent use.

What causes stretch marks?

Stretch marks (striae) form when skin stretches faster than it can produce collagen — during growth spurts, pregnancy, rapid weight or muscle gain. The dermis tears slightly, leaving streaks that start red or purple (striae rubra) and gradually fade to silver or white (striae alba) as the blood vessels settle and the skin remodels.

Can red light therapy help stretch marks?

It targets the root issue: collagen. Red and near-infrared light are thought to stimulate fibroblasts — the cells that produce collagen and elastin — which can improve the texture and color of stretch marks over time. The same collagen mechanism that's studied for fine lines applies here. It's a gentle, non-invasive option you can use at home, and it pairs well with other approaches like moisturizing and (for some people) microneedling or topical retinoids under a dermatologist's guidance.

New vs. old marks: which respond better?

Newer red or purple marks tend to respond better than old white ones, because they still have active blood vessels and remodeling potential. Mature white striae can still soften, but progress is slower and more limited. If your marks are still pink or red, that's the best window to start.

Realistic expectations

Red light can soften and blend stretch marks, but think improvement, not disappearance. No at-home light device reliably erases mature striae. The best way to judge results is to take consistent photos in the same lighting every couple of weeks over an 8–12 week period — the same approach we describe in our before-and-after guide. Skin change is gradual, and photos catch what your eye misses day to day.

How to treat stretch marks at home

• Where: bare skin over the affected zone — belly, hips, thighs, arms, or chest.
• Distance: about 6–12 inches from a panel.
• Session length: ~10 minutes per area.
• Frequency: 4–5 times a week.
• Stack habits: moisturize well and stay hydrated to support skin elasticity.

Which AWA device works best?

Stretch marks usually cover larger zones (belly, hips, thighs), so a full-body panel treats them efficiently in one session. The AWA FX500 Full-Body Panel ($269.99, FSA/HSA eligible) is the best fit; the compact FX300 ($199.99) works for smaller, targeted areas. Not sure which to pick? Take the find-my-device quiz.

Frequently asked questions

Will red light remove stretch marks completely?
Usually not. It improves color and texture, especially on newer marks, but rarely erases them — particularly mature white striae.

Do new or old stretch marks respond better?
Newer red or purple marks respond better than mature silvery-white ones, because they still have active remodeling potential.

How long until I see a difference?
Plan on 8–12 weeks of consistent use, and track with photos every couple of weeks.

Is it safe to use during or after pregnancy?
Red light therapy is generally low-risk, but check with your doctor before using it during pregnancy or while breastfeeding.

FSA/HSA can lower the cost

Most AWA devices are FSA and HSA eligible, so you can use pre-tax dollars toward your device.

This article is educational and not medical advice. Red light therapy is generally very safe, but check with your doctor about your specific situation, especially if you are pregnant, have a medical condition, or take photosensitizing medication.