Reverse Skin Aging Signs by Red Light Photobiomodulation

Researchers wanted to determine whether red LED light therapy could visibly reverse signs of facial skin aging, including wrinkles, loss of firmness, uneven skin tone, enlarged pores, and skin texture issues. 

Study Design

  • 20 healthy women participated.
  • Treatment used a red LED mask at 630 nm wavelength.
  • Sessions were performed twice weekly for 3 months.
  • Each session lasted 12 minutes.

What Researchers Measured

The study evaluated:

  • Crow’s feet wrinkle depth
  • Skin firmness and elasticity
  • Dermal density (collagen-rich skin layer)
  • Skin smoothness and texture
  • Complexion uniformity
  • Pore size
  • Sebum (oil) production
  • Overall skin quality

Results

After 1, 2, and 3 months of treatment, participants showed:

  • Reduced wrinkle appearance
  • Improved skin firmness and elasticity
  • Increased dermal density
  • Smoother skin texture
  • More even skin tone
  • Smaller visible pores
  • Better oil regulation
  • Overall improvement in skin quality reported by all participants

Why It Works

The researchers explain that red light photobiomodulation may:

  • Increase mitochondrial ATP (cellular energy) production
  • Stimulate cell signaling and growth factors
  • Reduce oxidative stress
  • Support collagen production and skin repair processes

Conclusion

The study concluded that red light photobiomodulation significantly improved visible signs of skin aging. Benefits continued for up to one month after treatment stopped, suggesting lasting structural and functional skin rejuvenation. 

https://pubmed.ncbi.nlm.nih.gov/37522497/

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