Red and Blue Light Therapy: The Secret to Healthier Skin
- What Is Red and Blue Light Therapy?
- Can You Use Red and Blue Light Therapy Together?
- How Often Should You Use Red and Blue Light Therapy?
- Does Red and Blue Light Therapy Work?
- Are There Any Side Effects?
- Introducing RLB’s 7-in-1 LED Light Therapy Machine for Face & Full Body
- Summing It Up
What Is Red and Blue Light Therapy?

Red and blue light therapy are types of photobiomodulation (PBM), a noninvasive treatment that uses light to help the body heal.
Red light (typically between 600 and 700 nm) penetrates deeper into the skin, affecting tissues beneath the surface. Blue light (around 400-490 nm) targets the top layers of the skin. People mainly use it to treat acne-causing bacteria and skin issues.
Both types of light therapy work by energizing cells, promoting cellular repair, reducing inflammation, and increasing blood flow. Red light therapy helps with pain relief, anti-aging, and muscle recovery. Many people often use blue light therapy for acne treatment and improving skin texture.
Can You Use Red and Blue Light Therapy Together?

Yes, you can use red and blue light therapy together. Many devices today are made to offer both types of light in one session. Blue light helps treat surface skin issues like acne.
In contrast, red light goes deeper. It is good for healing and reducing inflammation. Using both together lets you target different layers of the skin at the same time, providing a more complete skincare or healing treatment.

For example, using a red and blue light therapy device can help reduce fine lines and wrinkles and clear acne-prone skin. The two wavelengths complement each other, offering dual benefits in a single treatment session.
How Often Should You Use Red and Blue Light Therapy?
The frequency of red and blue light therapy depends on your goals and skin condition. For most people, using these therapies 3-5 times weekly for 10-20 minutes per session yields effective results. It is important to follow the guidelines for your therapy device. Overusing it may lead to less effective results.
You can perform blue light therapy daily for acne treatment to help reduce acne-causing bacteria on the skin. Red light therapy for muscle recovery or anti-aging may need less frequent use, around three times a week. Always monitor how your skin and body react, and adjust the frequency accordingly.
Does Red and Blue Light Therapy Work?
Yes, studies show that red and blue light therapy can treat many skin conditions and help improve overall skin health. A Lasers in Medical Science found that blue light therapy can reduce bacteria that cause acne.
It also helps lower inflammation. Red light therapy can improve skin texture and reduce wrinkles. It may also help muscles recover faster.
In another study, Mechanism and Biological Relevance of Blue Light showed that blue light triggers nitric oxide production in the skin, promoting healing and reducing bacterial levels. Furthermore, combining red and blue light therapy has shown promise in improving skin conditions like rosacea and psoriasis.
Are There Any Side Effects?
Experts consider red and blue light therapy safe when used appropriately. Side effects are rare and typically mild, such as temporary redness, dryness, or slight irritation in treated areas. To avoid discomfort, stick to the recommended session length of 10 to 20 minutes. Do not stare directly into the light to protect your eyes.
If you have sensitive skin or conditions like rosacea, start with shorter sessions. Before starting treatment, consult a dermatologist.
Introducing RLB’s 7-in-1 LED Light Therapy Machine for Face & Full Body

For a flexible light therapy solution for your face and body, the RLB 7-in-1 LED Light Therapy Machine is a great choice. It has 7 specific wavelength combinations, including red and blue light. These help reduce inflammation, improve skin texture, and address acne and fine lines.

With adjustable intensity, this machine ensures that you receive customized treatment for your specific skin needs. It has 327 LEDs that cover your face and body. This makes it a complete solution for healthier, glowing skin at home.
Summing It Up
Red and blue light therapy offers effective, noninvasive solutions to various skin and health concerns. Blue light helps reduce acne and inflammation, while red light improves skin texture and speeds up muscle recovery.
These therapies work well together. Depending on their treatment goals, most people can benefit from 3-5 sessions a week. And yes, red and blue light therapy truly works, with numerous clinical studies backing its efficacy.
Consider using a red and blue light therapy device to improve skin health or address issues like acne or aging. By adding this routine to your skincare plan, you can encourage healthy, glowing skin and help with deeper health issues.
References
1. Weller, R. B., Wang, Y., He, Y., et al. (2021). Mechanism and biological relevance of blue-light (420–453 nm)-induced nonenzymatic nitric oxide generation from photolabile nitric oxide derivates in human skin in vitro and in vivo. Journal of Photochemistry and Photobiology B: Biology, 221, 112156.
2. Barolet, D., & Roberge, C. J. (2021). Photobiomodulation in dermatology: Red and blue light therapies for acne vulgaris. Journal of Dermatological Treatment, 32(6), 635-645.