Shedding Light on Skin Health | Your Guide to LED Therapy in Grand Rapids

April 14, 2026

Light therapy is all over social media, but what's the real story behind this skincare trend? Like any medical treatment, it is important to understand the risks and benefits. This guide explains what light therapy is, how it may improve your skin, and how to navigate home care devices. By the end, you'll understand how LED treatments work and how the team at the Centre for Pure Skin can support your goals.

What Is LED Light Therapy and How Does It Work?

LED (light-emitting diode) therapy is a non-invasive skincare treatment that uses specific wavelengths of light to rejuvenate the skin. It can address a range of skin concerns, including acne, fine lines, wrinkles, uneven skin tone, and inflammation.

How LED Light Therapy Improves Your Skin

To understand how LED light therapy works, we need to look at what happens inside your skin cells. The treatment stimulates natural intracellular processes, increasing cellular energy production in the form of adenosine triphosphate (ATP). Often called the "molecular unit of currency," ATP is the primary molecule for storing and transferring energy within your cells. With this extra energy, your skin cells function more efficiently and repair damage faster. 

By using specific wavelengths, LED therapy can target skin conditions at their source, reducing inflammation for more effective healing, boosting collagen for anti-aging benefits, and creating an environment where acne-causing bacteria can't survive.

Red Light vs. Blue Light Therapy: What’s the Difference?

When you look into LED skincare treatments, you'll find two main colors: red and blue. These are the most common light therapies, and they do very different things.

Red Light Therapy

Red light therapy is primarily used for anti-aging and skin rejuvenation. It works by boosting collagen production—the protein that keeps skin firm and youthful. As we age, our bodies produce less collagen, which leads to wrinkles. Red light stimulates cells to create new collagen and elastin. It also reduces inflammation and improves circulation, which helps protect existing collagen.

Blue Light Therapy

Blue light therapy is designed to kill acne-causing bacteria on the skin's surface. It also helps calm overactive oil glands, reducing the excess oil that can clog pores.

Dual Light Therapy

Blue and red light are often used together for an even more powerful acne treatment. The blue light kills bacteria on the skin's surface, while the red light penetrates deeper to reduce inflammation, improve circulation, and help repair acne-damaged skin.

The Science of Wavelengths|  Why Numbers Matter

The effectiveness of light therapy relies on specific wavelengths, measured in nanometers (nm). These wavelengths determine how deeply the light penetrates the skin and how well it triggers the desired cellular response. Using the wrong wavelength can be ineffective or even damage the skin.

Red light therapy uses wavelengths between 630 and 700 nm. This longer wavelength penetrates deep into the skin to stimulate collagen production, improve blood circulation, and reduce inflammation.

Blue light therapy uses shorter wavelengths, from 400 to 495 nm. This light stays near the surface, exactly where it needs to be to destroy acne-causing bacteria and regulate oil production.

Does Light Therapy Ever Damage the Skin?

While light therapy is generally safe, it's not without risks, especially if used incorrectly. 

One common mistake is overuse. It can be tempting to use your device more than recommended, but sticking to the manufacturer's guidelines (typically 3–5 sessions per week for 10–20 minutes) is crucial. Overdoing it can overstimulate your skin, leading to irritation or other unwanted reactions.

For those with deeper skin tones (Fitzpatrick types IV–VI) or anyone prone to melasma, the heat from some light therapy devices can be a concern. This may trigger excess melanin production, potentially making dark spots or hyperpigmentation worse.

It's also important to consider any medications you're taking, as some can increase your skin's sensitivity to light. Oral antibiotics like Doxycycline, strong topicals such as Accutane, and certain retinoids can make you more susceptible to rashes or pigmentation issues when combined with light therapy.

Because of these factors, it's always best to consult a skincare professional before starting light therapy to ensure it's a safe and effective option for you.

In-Office Light Therapy in Grand Rapids

Light therapy can be a powerful, science-backed tool for achieving clearer, younger-looking skin. At the Centre for Pure Skin in West Michigan, we use the FDA-cleared LightStim+ Elipsa device to enhance  some of our skincare treatments. This device utilizes a combination of Blue, Amber, Light Red, Dark Red, and Infrared wavelengths with a total of 868 LEDs. For our purposes, we use it improve the absorption of serums, reduce inflammation, and aid in healing for more noticeable results. 

To make the most of light therapy, consistency is key. While professional treatments deliver powerful results, many patients choose to purchase a home care device to use in addition to their in-office sessions. This combination may help to maintain and enhance the benefits of your treatments between visits.

Choosing a Safe At-Home Device

With the rise of at-home LED devices, it's easy to be swayed by glowing recommendations from social media influencers. However, these sources may not always have your best skin health in mind, and their endorsements can sometimes lack scientific backing or overlook safety concerns. To protect your skin and achieve real results, it's crucial to be discerning when choosing a device for home use. Focus on these key factors to ensure you select a safe and effective option:

FDA-Clearance: Always choose a device that is FDA-cleared. This indicates it has been reviewed for safety and effectiveness.

High Quality and Heat-Free: The benefits of LED therapy come from light energy, not heat. A low-quality device that overheats the skin can cause dehydration, inflammation, redness, hyperpigmentation, and even burns.

Correct Wavelengths: Ensure the device uses clinically-proven wavelengths (around 415 nm for blue light and 630-700 nm for red light).

Clear Instructions: Overusing an LED device can overstimulate your skin cells and lead to adverse reactions. Your device should include clear and consistent clinically tested guidelines for safe use.

Ready to See the Light?

Curious how advanced skincare treatments like light therapy can transform your skin? From professional sessions to choosing the right at-home device, navigating your options is key to achieving a healthier, more radiant complexion. Schedule a consultation with the experts at the Centre for Pure Skin to discuss your personalized treatment plan. Reach out today! CLICK HERE to schedule your consultation online or call our office at 616-454-1256.