Stretch Mark Reduction
Source: Dermatology Research
Protocol for improving the appearance of stretch marks (striae) using red light to stimulate collagen remodeling in the affected dermal tissue. More effective on newer (red/pink) stretch marks than mature (white/silver) ones.
Protocol Parameters
| Condition | Striae (Stretch Marks) |
| Wavelengths | 630nm, 660nm |
| Dosage | 4-8 J/cm² |
| Irradiance | 30-50 mW/cm² |
| Duration | 15-20 minutes per area |
| Frequency | 5x per week for 12-16 weeks |
| Body Zone | variable |
| Evidence Level | Emerging |
Mechanism of Action
Red light stimulates fibroblast activity in the atrophic dermal tissue of stretch marks, promoting collagen and elastin synthesis. This gradually fills in the thinned dermis, improving skin texture and reducing the visible appearance of striae.
Key Studies
- Trelles et al. (2008) - LED for skin rejuvenation including striae
- Gupta & Singal (2019) - Treatment of striae review
Treatment Tips
- *Start treatment as early as possible (red/pink stage)
- *Mature white stretch marks respond more slowly
- *High frequency (5x/week) and long courses (12+ weeks) needed
- *Combine with topical retinoids and good hydration
Contraindications
- !Pregnancy (stretch marks during pregnancy - consult OB/GYN)
- !Active skin infection in the area
Research Basis
This content is informed by 47+ published peer-reviewed studies on photobiomodulation.
RedLightOS Research Team
Photobiomodulation Research
The RedLightOS team reviews over 9,500 published photobiomodulation studies to deliver evidence-based red light therapy guidance.
Reviewed by RedLightOS Research Team. Last reviewed: . Based on published photobiomodulation research. For educational purposes only — not a substitute for professional medical advice. See our methodology.
Medical Disclaimer: This content is for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Red light therapy devices are wellness devices and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.