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Shining a Light on Acne: The Power of Blue Light Therapy

Updated: Mar 11

Acne, a skin condition we often associate with teenagers, can persist into adulthood and become a source of frustration for many. But what if there was a modern, non-invasive solution to this age-old problem? Enter blue light therapy, a promising treatment that's been making waves in the skincare world. Let's dive into what it is, how it works, and its efficacy based on recent research.


A man receiving blue light treatment during a Hydrafacial at KINS Clinic

What is Blue Light Therapy?

Blue light therapy involves exposing the skin to a low-level blue light source. This light targets the bacteria responsible for acne, leading to clearer skin. It's a non-invasive procedure, meaning no needles or surgeries are involved.

How Does Blue Light Therapy Work Against Acne?

The primary culprit behind acne is a bacterium called Propionibacterium acnes. This bacterium is sensitive to blue light. When exposed, the bacteria produce free radicals that destroy them, reducing inflammation and the number of breakouts.

Efficacy of Blue Light Therapy: What Does the Research Say?

Blue light therapy has been put to the test in various studies to see how well it works against acne. Here's a quick breakdown of what was found:

Research Scope: A big study looked into blue light therapy's effectiveness, involving 14 different tests with a total of 698 participants.

Positive Results: Some of these tests showed that people experienced noticeable improvements in their acne after using blue light therapy.

Neutral Results: In terms of the actual number of acne spots (both red, inflamed ones and regular ones), the difference between blue light therapy and other treatments wasn't significant.

Safety: The good news is that side effects were generally mild, and in some cases, even fewer side effects were reported with blue light compared to other treatments.

In simpler terms, while blue light therapy has shown some promise in helping with acne, it's essential to remember that results can vary. It's always a good idea to chat with a skincare expert if you're thinking about giving it a try.

Schedule a consultation today and start your acne recovery journey today.


While blue light therapy shows promise in treating acne, it's essential to approach it with a balanced perspective. The existing evidence suggests potential benefits, but more robust studies are needed. If you're considering blue-light therapy, it's crucial to consult with a dermatologist to understand its potential benefits, risks, and costs.

This blog post was medically reviewed by Dr Summer Zhang.



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