Stretch marks, or striae, are a common skin concern caused by pregnancy, rapid weight changes, or growth spurts. Many people are curious about whether red light therapy (RLT) can visibly improve these marks—and what the results look like over time.
This guide will explain how RLT works for stretch marks, typical before-and-after results, and tips to maximize effectiveness.
How Red Light Therapy Works on Stretch Marks
Red light therapy uses low-level red and near-infrared light (630–850nm) to penetrate the skin and stimulate repair processes:
Collagen & Elastin Production
RLT stimulates fibroblasts to produce collagen and elastin, the proteins that maintain skin elasticity.
Enhanced Blood Flow
Improves nutrient and oxygen delivery to the skin, supporting tissue repair.
炎症の減少
Calms redness and irritation in newer stretch marks.
Skin Texture Improvement
Over time, stretch marks become less noticeable, with smoother and firmer skin.
Before and After: 何を期待するか
Before Treatment
Stretch marks may appear red, purple, or white, depending on their age.
Skin may feel thin or less elastic in affected areas.
After 6–12 Weeks of Consistent Use
Color fades: Red or purple marks lighten toward natural skin tone.
Texture improves: Stretch marks feel smoother and less depressed.
Elasticity increases: Skin appears firmer and healthier.
注記: Results vary depending on the age and severity of the stretch marks, スキンタイプ, and consistency of therapy. Early-stage stretch marks respond faster than older, white marks.
Recommended Treatment Plan
Parameter Recommendation
Frequency 3–5 sessions per week
Session Duration 10–20 minutes per area
Visible Results 6–12 weeks for moderate improvement
Target Areas Abdomen, thighs, ヒップ, arms
Safety Tips
Avoid use on broken skin or active skin infections
Consult a doctor if pregnant, breastfeeding, or with underlying health conditions
Use protective eyewear when using high-intensity devices
Follow device manufacturer instructions for safe and effective use
FAQ
Q1: Are the before-and-after results permanent?
Results are long-lasting, but maintaining skin health and hydration helps sustain improvements.
Q2: Can red light therapy completely remove stretch marks?
RLT can significantly reduce their appearance but may not remove them entirely.
Q3: Can I combine RLT with creams or oils?
はい. Combining RLT with collagen-boosting creams or moisturizers can enhance results.
Q4: When should I expect to see visible changes?
Most users notice improvements after 6–12 weeks, depending on consistency and stretch mark severity.
Final Takeaway
Red light therapy offers a safe, non-invasive method to visibly improve stretch marks. By stimulating collagen, improving blood circulation, and reducing inflammation, RLT can help transform the appearance of affected skin over several weeks.
