Let's Talk about Red Light Therapy

by Dr. Avee Naidoo (2024)

Red light therapy (RLT) has gained popularity as a non-invasive skincare treatment with promising results. It works by emitting low-level wavelengths of red light, which penetrate the skin’s surface and stimulate cellular repair and regeneration.

Studies suggest that red light therapy boosts collagen production, helping to reduce fine lines and wrinkles. This can improve skin elasticity and firmness, making it a popular choice for those seeking an anti-aging solution. Red light therapy may also help with skin texture and dyspigmentation.

In addition to its anti-aging effects, red light therapy is known for its ability to reduce inflammation, making it an effective treatment for conditions such as acne and rosacea. By promoting healing and reducing redness, it can soothe irritated skin and enhance overall skin tone.

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Conditions That May Benefit from Red Light Therapy

• Acne – Studies show that light therapy reduces inflammatory and non-inflammatory acne lesions.

FYI: Acne benefits from both red light (anti-inflammatory, deeper structures affected) and blue light therapy (anti-inflammatory, anti-bacterial against the bacteria that contributes to acne).

• Rosacea – gradual but significant reduction in erythema (skin redness) and studies show reduction in skin sensitivity.

• Eczema or Atopic Dermatitis

• Psoriasis

• Wound healing

• Male or Female Patterned Hair Loss - limited evidence thus far but some promising studies that red light (~650 nm) can stimulate hair follicles to promote growth.

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Research also shows that red light therapy enhances blood circulation, delivering oxygen and nutrients to the skin cells, which can promote a more radiant complexion. It has been used to treat sun damage, scars, and hyperpigmentation as well, making it a versatile tool in the skincare industry.

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Although generally considered safe, it’s important to consult with a dermatologist to ensure that red light therapy is suitable for your specific skin concerns.

Consistent use, combined with a well-rounded skincare routine, can help you achieve noticeable improvements over time.

*** Please note that although red light therapy seems like a promising and safe adjunct to your skin care, studies are currently limited and further studies are needed.

Ngoc, L. T. N., Moon, J. Y., & Lee, Y. C. (2023). Utilization of light‐emitting diodes for skin therapy: Systematic review and meta‐analysis. Photodermatology, Photoimmunology & Photomedicine, 39(4), 303-317.