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What should I consider when choosing an LED device for aesthetic treatments?
When selecting an LED device, one of the most important considerations is whether it holds the right credentials. FDA clearance and CE marking indicate that a device has been rigorously tested for safety and efficacy. It’s also worth choosing a multi-functional device. A single system should ideally meet a range of skincare and wellness needs and be suitable for use anywhere on the body, offering greater value and flexibility in a professional setting.
Understanding wavelengths is also essential. Based on NASA’s seminal research, the effective wavelengths are blue, red, and near-infrared. These have been widely shown to increase adenosine triphosphate (ATP) production in cells compromised by ageing, illness, disease or lifestyle factors. Blue addresses acne issues, while red and near-infrared help decrease inflammation and increase micro-circulation, bringing more oxygen and nutrients to the area.
There is no credible research supporting therapeutic value for wavelengths outside blue, red, and near-infrared. By contrast, these three wavelengths are backed by thousands of peer-reviewed clinical studies demonstrating significant therapeutic benefits when used correctly. In beauty, red and near-infrared are especially desirable because of their ability to stimulate fibroblast activity and boost collagen and elastin production, improving overall skin quality and appearance.
Treatment protocols also play a major role in effectiveness. The maximum time for photon absorption by the cell membrane and mitochondria is 30 minutes. Extending treatment time beyond that does not increase benefit, but there is no limit to the number of times a device can be used on the same patient. In areas such as wound healing, practitioners often observe accelerated results, with progress achieved in one month that might otherwise take three months without light therapy.
Distance from the skin is another important factor. According to the inverse square law, the closer the device is to the treatment area, the greater the photon absorption. Increasing distance reduces the amount of usable light energy. This is where flexible panel devices have a distinct advantage over rigid systems, as they can contour closer to the skin and maintain consistent light delivery across a larger treatment area.
Safety should always be front of mind. Professionals should research the clinical evidence supporting any brand they are considering and prioritise devices with FDA clearance and a CE mark. Clean, freshly washed skin is recommended for best results. Despite marketing claims, there are no rigorous clinical studies showing a synergistic effect between LED treatment and serum penetration. Practitioners should also be mindful of medications that may cause photosensitivity and carry out thorough consultations before treating.
In light of recent ASA rulings, it’s also vital that professionals communicate benefits accurately. Choosing an FDA-cleared device ensures that indications for use have been properly established. Building knowledge through clinical papers and reputable sources, and working with providers that offer training and ongoing support, helps therapists confidently and responsibly explain LED’s cosmetic benefits to clients.
Looking ahead, emerging developments include hair restoration, where red light energy can prolong the anagen phase, and noninvasive lipo-therapy, which is pain-free, preserves fat cells and carries no known complications.
PAM CUSHING
Pam Cushing is an aesthetic nurse with 20 years’ experience. Her passion for skin and managing skin disorders means she is sought after by award winning brands as consultant educator for skin brands and devices.