Key Takeaways
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Red (≈630–660 nm) and near-infrared (≈800–900 nm) light penetrate skin tissue and activate fibroblasts — the cells responsible for producing collagen and elastin.
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Clinical and laboratory studies show photobiomodulation (PBM) can improve skin texture, reduce fine lines, and accelerate wound healing.
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Non-invasive, pain-free, and safe for most skin types, PBM is a supportive tool in both anti-ageing and skin recovery routines.
How Red Light Therapy Works
PBM delivers specific light wavelengths that are absorbed by cytochrome c oxidase in mitochondria. This boosts ATP production, supporting cell repair and regeneration. In skin, the main effects are:
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Fibroblast activation — increased collagen and elastin synthesis.
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Enhanced circulation — better oxygen and nutrient delivery to skin cells.
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Reduced inflammation — calmer skin, reduced redness, and faster recovery.
Evidence for Collagen Regeneration
A review in the Journal of Wound Management and Research highlights that red and near-infrared light therapy can:
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Increase fibroblast proliferation.
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Boost type I and III collagen deposition in dermal tissue.
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Improve tensile strength and elasticity in healing skin.
Other peer-reviewed studies report that regular PBM treatments improve dermal thickness and reduce wrinkle depth, likely through sustained collagen remodelling.
Benefits for Ageing Skin
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Improved skin elasticity — firmer, more resilient skin.
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Wrinkle reduction — softer fine lines and reduced crease depth.
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Faster healing — support after cosmetic procedures, peels, or microneedling.
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Even skin tone — less redness and blotchiness from improved microcirculation.
How to Use at Home
For facial anti-ageing:
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Distance: Keep the device a few centimetres from the skin (check manufacturer’s guide).
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Time: 5–15 minutes per area, 3–5 times per week for 8–12 weeks, then maintain 1–2 times weekly.
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Areas: Face, neck, décolletage, backs of hands.
Recommended Device
The Pulsed Low-Level Laser Therapy device from Pulse Laser Relief offers both red and near-infrared light in a portable form. Pulsed modes can reduce heat build-up and are often preferred for sensitive facial skin.
Safety Notes
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Generally safe for all skin types.
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Avoid direct eye exposure — use protective eyewear if necessary.
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Consult your doctor if you have photosensitive conditions or are on light-sensitive medication.
Red light therapy is not a quick fix — but when used consistently, it can be a powerful ally in reducing visible signs of ageing, supporting collagen regeneration, and improving overall skin health.
References:
Ma, H., Yang, J.-P., Tan, R. K., Lee, H.-W., & Han, S.-K. (2018). Effect of low-level laser therapy on proliferation and collagen synthesis of human fibroblasts in vitro. Journal of Wound Management and Research, 14(1), 1–6. https://doi.org/10.22467/jwmr.2018.00283
