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An acne light therapy is a treatment option for acne that uses different wavelengths of light. Therapy devices are available for home use and can be prescribed by a doctor. The treatment works by targeting specific areas on the skin to kill acne bacteria. It can take several weeks to see results. The different types of light therapy for acne include:
Blue Light Therapy
Blue light therapy is a treatment that uses blue light to kill acne bacteria. The therapy devices emit a specific wavelength of blue light between 405 and 420 nanometers. This wavelength is capable of penetrating the skin and targeting the sebaceous glands. The glands produce bacteria called Propionibacterium acnes. This bacteria is the primary cause of acne breakouts. Once the bacteria are destroyed, acne lesions will reduce, and new ones won't form. Some blue light therapy products include blue light therapy masks, handheld devices, and light bands worn on the forehead.
Red Light Therapy
Red light therapy (RLT) is a treatment that uses low-wavelength red light to promote healing. It is a non-invasive procedure that doesn't cause pain or discomfort. The therapy is also known as low-level laser therapy (LLLT). RLT can treat different medical conditions like fine lines, wrinkles, scars, and stretch marks. It can also treat psoriasis, eczema, and acne. The red light has a wavelength between 620 to 650 nanometers. It helps kill the bacteria that cause acne and reduces inflammation. People who undergo RLT for acne report a decrease in the severity and duration of the skin condition. Some red light therapy products include handheld devices, LED light therapy beds, and LED masks.
Yellow Light Therapy
Yellow light therapy is a treatment that uses yellow light to reduce redness in the skin. It is also known as photodynamic therapy. The therapy produces a specific wavelength of light between 480-640 nanometers. Yellow light therapy can treat different skin conditions like psoriasis, acne, and skin cancer. It can also diminish the appearance of wrinkles and sun damage. Studies show that yellow light therapy reduces the size of acne lesions. People who use yellow light therapy for acne treatment report less inflammation and skin redness.
Purple Light Therapy
Purple light therapy combines red and blue light at specific wavelengths. The therapy produces light at a wavelength between 405-420 nanometers and 620-650 nanometers. It is the only light therapy that uses both red and blue light. The primary purpose of the purple light is to reduce or eliminate acne. The therapy kills the acne bacteria and also reduces inflammation and skin redness.
When choosing an acne light therapy, it's essential to consider the product's features and performance. Here are some things to look out for.
Wavelength
The device's wavelength affects its performance. It is because the different wavelengths penetrate the skin at varying depths. Most LED devices used for light therapy treatment have different wavelengths ranging between 415 nanometers to 450 nanometers and 600 to 650 nanometers. The wavelengths at 415 nanometers to 450 nanometers emit blue light that destroys the acne-causing bacteria. On the other hand, the wavelengths at 600 to 650 nanometers emit red light that stimulates the production of collagen and reduces inflammation.
Number of LED lights
The number of LED lights on the device will determine its effectiveness. A larger number of LED lights will provide more coverage and faster treatment time. It is because more lights can emit different wavelengths simultaneously and treat various skin conditions.
Device shape and size
The shape and size of the device affect how it is used and its portability. Some common shapes and sizes of the acne light therapy device are handheld, panel, mask, and pillow. They are all designed differently, and each has its benefits. For example, the handheld device is light and portable, making it easy to carry and use anywhere. Users can also use the panel, mask, and pillow devices at home. While the panel device has a large coverage and treats the skin fast, the mask device fits the entire face and treats every part of the skin evenly. The pillow device is also used for people who want to treat their face and back simultaneously.
Power source
Acne light therapy devices can be powered by batteries, USB cables, or power adapters. The batteries on the handheld device provide great mobility and make it easy to use anywhere. Users need to plug in the USB cables on devices that use them. Acne light therapy devices that use power adapters are usually stationary and need to be plugged into a wall outlet.
Settings
Some advanced acne light therapy devices have different settings that users can adjust to their liking. The settings may include low, medium, and high. People with sensitive skin can use the low setting, while those with severe acne can use the high setting.
The light therapy for acne treatment is a simple process that can easily be incorporated into one's daily skincare routine. It is important to follow the manufacturer's instructions to ensure the device is used properly and achieves the best results. Here is a step-by-step guide:
Step 1 - Cleanse
First, wash the face with a gentle cleanser to remove oils, dirt, or makeup. This maximizes the effectiveness of the treatment by allowing light to penetrate deeply into the acne.
Step 2 - Prepare the device
If required, charge the light therapy device. Depending on the type of device, one may have to insert batteries or plug it in. Prepare red light therapy masks and ensure the LED functions properly.
Step 3 - Protect the eyes
Before starting the light treatment, protect the eyes from bright light. Use safety goggles or light-blocking glasses. Some devices emit intense light that could damage the eyes if not protected.
Step 4 - Position the device
Hold or place the light therapy device over the affected area of the skin. Ensure it makes good contact with the skin so the light penetrates deeply. Some devices, like masks, fit over the entire face.
Step 5 - Start the treatment
Activate the device so the light therapy treatment can start. Most devices have timers that shut them off automatically after a set period. The treatment usually lasts between 5 and 15 minutes.
Step 6 - Move the device around
During the treatment, move the light therapy device slowly over the skin. Keep it at a constant distance as recommended by the manufacturer. This ensures all areas of the skin are treated.
Step 7 - Complete the treatment
Once the timer goes off, turn off the device or let it shut off automatically. Set the device down and wait a few moments before continuing with the skincare routine.
Step 8 - Post treatment
Apply any skincare products as needed after the light therapy treatment. Products such as moisturizers, serums, or spot treatments can be used. Light therapy helps acne by reducing inflammation and bacteria, while other products enhance light therapy effects and target individual skin concerns.
The product safety of light therapy for treating acne depends on the type of light used, whether it is red, blue, or any other color. Devices that emit blue light are usually considered safe and effective by most dermatologists. This is because research shows that blue light therapy does not cause any long-term damage to the skin or eyes. However, some users may experience side effects like dryness, flaking, or slight irritation. These side effects are similar to those experienced when using topical acne treatments. To avoid these side effects, users should start with shorter treatment durations and gradually increase them. Protecting the eyes is important when using devices that emit intense, bright blue light.
Acne red light therapy works on acne bacteria and skin. It reduces acne and improves the skin. The device emits blue or red light. The light enters the skin. It kills the bacteria that cause acne. The light also reduces the size of the sebaceous glands. These glands make sebum. Less sebum means fewer clogged pores and breakouts. The light therapy also calms skin inflammation. It reduces the swelling and redness of acne.
The therapy devices have LED lights. The lights are either blue or red. The blue light kills the acne bacteria. It also prevents new acne from forming. The red light helps heal acne scars. It makes the skin look smooth and even. Some devices have both blue and red lights.
The therapy devices have different shapes. They are masks, handheld devices, and pads. The masks cover the whole face. They have support stands or straps to hold them in place. Users only need to sit under or wear the mask. The handheld devices are small and easy to use. Users place the device on the acne spots. The devices are good for treating small areas. The pads have a flat surface that rests on the skin. They treat acne and prevent it at the same time. Some devices are rechargeable and have battery power.
Many acne light therapy devices are comfortable and safe. The light is intense but not harsh. It doesn't burn or damage the skin. It doesn't cause pain or discomfort. Light therapy is a painless acne treatment.
Q1: How long does it take to treat acne with light therapy?
A1: The treatment time depends on the severity of the acne and the type of device used. Users should follow the manufacturer's recommendations and the healthcare provider's advice. Usually, red-light therapy sessions should last 15 minutes and be performed two or three times weekly.
Q2: Does light therapy work on all types of acne?
A2: Light therapy is effective on most acne types, especially inflammatory ones, like papules and pustules. It may not be as effective on cystic acne, which is more severe and deep, and nodular acne. Combining light therapy with other acne treatments can improve results, but consulting a healthcare provider for personalized treatment is necessary.
Q3: How long do the results from light therapy for acne last?
A3: Light therapy can provide long-lasting results for acne treatment. Most patients experience noticeable improvements within 4 to 6 weeks. The duration of these results may vary depending on individual factors and the severity of the acne. Some patients may require monthly maintenance sessions to prevent future breakouts.
Q4: Are there any long-term side effects of light therapy for acne?
A4: Light therapy is generally considered safe and effective for treating acne. It has no long-term side effects. Some patients may experience temporary redness or mild irritation in the treated skin area, which usually resolves quickly. Light therapy can improve acne and reduce side effects.
