LED masks and at home red light devices have grown in popularity, appearing in many routines and generating plenty of questions about how they fit into overall skin care. While these tools can play a role in supporting the skin, their place is often misunderstood.
In this blog board certified dermatologist Dr. Lisa Ishii reviews how LED therapy works, how to think about these tools in the context of your routine, and what to keep in mind when deciding whether they are right for you.
How LED Light Therapy Works
LED Light utilizes a concept called Photobiomodulation. For LED therapy in particular, the technology relies on low level light, which is distinct from lasers and other energy-based devices that may be utilized in an office setting. LED therapy acts on the photoreceptors on the mitochondria of our skin cells which interact with this low level light to lead to chemical changes which can contribute to favorable skin outcomes. LED Light Therapy devices can come in many different wavelengths, with the most common devices utilizing visible light spectrum ranges such as red light or blue light. Newer devices may have other wavelengths of light, such as green or yellow.
Most Common Indications Explained: Red Light and Blue Light
Red Light:
Red light is the most commonly available “at-home” LED due to its wide ranges of uses. It has been shown to stimulate collagen production and have an anti-inflammatory effect, which is helpful in conditions such as acne and rosacea. It also has been shown to help with certain types of hair loss. An in-office red-light therapy may occasionally be used as a component for photodynamic therapy, where a photosensitizing medication is applied to the skin before being illuminated by the red light.
Blue Light:
Blue light LED has been shown to help with acne and fibroblast remodeling which could potentially play a role in scar reduction. Blue light has been long used in photodynamic therapy for pre-skin cancers (actinic keratoses), where a photosensitizing medication is applied to the skin before being illuminated by the blue light.
Do LED Light Masks Produce Real Results?
YES! However, it is important to note that not all at-home LED lights equal. Dose and delivery mechanisms matter! If looking to purchase an LED at-home treatment, it is key to choose an FDA cleared device to ensure safety and results. Remember that at-home LED treatment is a way to augment your current regimen and is not meant to replace in-office treatments, prescription medications, or medical grade skincare. It also requires dedication and commitment, as results will not be appreciable unless the device is used consistently for the recommended time.
To view the FDA cleared at-home LED device we recommend, click here.
Limitations of LED Masks: When to Consider In-Office Treatments
LED treatments are meant to augment results of in-office treatments, prescription medications, and medical grade skincare. Especially if the condition you are treating is worsening or not improving even after 3-4 months of consistent use, it is key to visit your board-certified dermatologist for consultation.
At home LED devices can hold value within a well-rounded approach to skin health, especially when used thoughtfully and with realistic expectations. They serve best as supportive tools rather than as standalone solutions. Understanding their role makes it easier to decide how to incorporate them and when to rely on professional guidance for deeper or more targeted results. If you are looking for guidance on a comprehensive (and realistic) routine in the Chapel Hill, Durham, Raleigh area, contact our office to start your journey.
