Red Light Therapy for Hormonal Balance: Thyroid, Menstrual, and Testosterone Health

By Dominic Lamb, Norway's Longest-Serving Light Therapy Specialist at Home Light Therapy | April 01, 2025

Hormonal imbalances are more common than most people realize, affecting energy levels, metabolism, mood, and overall well-being. As the longest-serving light therapy specialist in Norway, I’ve seen firsthand how red light therapy (RLT) can support hormonal health in ways conventional medicine often overlooks.

Many of my customers at Home Light Therapy come to me frustrated with fatigue, weight gain, irregular menstrual cycles, or low testosterone levels. They’ve tried supplements, medications, and restrictive diets but still feel off balance. The truth is, your hormones don’t function in isolation—they’re part of a complex system that depends on mitochondrial energy, blood flow, and cellular health. That’s where RLT, also known as photobiomodulation, comes in.

Unlike many new companies selling gimmicky products from social media trends, at Home Light Therapy, I only offer legitimate, research-backed light therapy devices that provide real therapeutic benefits. I also provide a bespoke guide for every customer purchasing a panel, ensuring they get a personalized protocol rather than generic advice like "use it for 5-20 minutes, 3-7 times per week," which rarely fits individual needs. See more below to learn why this is so important.

How Red Light Therapy Influences Hormones

Red and near-infrared (NIR) light penetrate deep into tissues, stimulating mitochondrial ATP production—the fuel your cells need to function. Hormone-producing glands, from the thyroid to the ovaries and testes, rely on this endocrine support. When mitochondria are underpowered due to stress, inflammation, or lack of natural light exposure (a major issue in Norway), hormone balance suffers.

The Benefits of RLT for Hormonal Health

• Reduces Inflammation: Chronic inflammation disrupts hormone signaling. Studies show RLT lowers oxidative stress, creating a healthier internal environment.
• Improves Blood Flow: Healthy circulation ensures hormones reach target tissues efficiently.
• Boosts ATP Production: The endocrine system relies on energy to synthesize and regulate hormones effectively.
• Supports the Nervous System: The hypothalamus and pituitary gland, which control hormone release, respond well to light therapy benefits, improving overall hormonal regulation.

Thyroid Health and Red Light Therapy

In Norway, thyroid disorders like hypothyroidism and Hashimoto’s thyroiditis are widespread, partly due to long winters with minimal natural light exposure. Research has shown that red and NIR light therapy may:

• Reduce autoimmune activity in Hashimoto’s patients.
• Increase T3 and T4 hormone production, improving metabolism and energy.
• Enhance blood flow to the thyroid, promoting better function.

How to Use It for the Thyroid:

• Direct red or NIR light at the lower neck for 5-10 minutes per session, 3-5 times per week.
• Use wavelengths in the 630-850nm range for optimal penetration.

Shop my precision-calibrated red light torch (670nm & 810nm) designed for thyroid support.

A 2013 study published in Lasers in Surgery and Medicine found that red light therapy significantly reduced the need for thyroid medication in patients with Hashimoto’s disease. If you’ve been struggling with thyroid-related fatigue or weight issues, this could be a game-changer.

Red Light Therapy for Menstrual and Reproductive Health

For women dealing with painful periods, PCOS, or menopause symptoms, RLT offers a natural way to support reproductive health.

Key Benefits

• Eases Menstrual Pain: Red light reduces inflammation and improves blood flow to the uterus, decreasing cramping.
• Supports Ovarian Function: Improved circulation can enhance egg quality and regulate cycles, benefiting those with PCOS.
• Reduces Menopause Symptoms: Many women report better sleep, mood, and fewer hot flashes with consistent RLT use.

How to Use It:

• Apply red or NIR light to the lower abdomen for 10-15 minutes per session.
• Use therapy regularly, especially leading up to and during menstruation for best results.

Browse my targeted red light therapy solutions for menstrual and reproductive health.

A study from the early 2000's found that photobiomodulation improved ovarian function, fertility and hormone regulation in women with reproductive issues.

Testosterone and Red Light Therapy

Testosterone levels decline with age, but modern lifestyles are making the problem worse. Stress, poor sleep, and exposure to artificial light at night disrupt testosterone production. RLT may help by:

• Stimulating Leydig cells in the testes, increasing natural testosterone boost as well as improving sperm quality and motility.
• Boosting blood flow to reproductive organs and encouraging blood vessel dilation.
• Reducing oxidative stress, which impairs hormone production.

How to Use It:

• Apply red or NIR light to the lower abdomen or groin area for 5-10 minutes per day.
• Use wavelengths between 600-850nm for best results.

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A 2013 study in animals showed that red light therapy was able to produce a measurable increase in testosterone levels, particularly when applied in the morning.

Why I Recommend Red Light Therapy for Hormonal Balance

I’ve spent years researching and testing light therapy on myself and my customers at Home Light Therapy. This isn’t just a product I sell—it’s a passion. I want you to experience real results, whether that’s more energy, a balanced cycle, or better thyroid function.

Unlike many new brands flooding the market, my products are designed for real therapeutic effect, not just TikTok hype. When you buy from Home Light Therapy, you’re getting legitimate, research-backed devices and expert guidance to ensure you get the best results possible.

What a Bespoke Guide Looks Like

Every person’s needs are different, and red light therapy must be applied correctly to be effective. A knee joint requires vastly different irradiation than facial skin rejuvenation. The bespoke guides cover what the current research suggests is a good amount of light energy to shine on an area for a specific area but also describes other issues to think about including light reflection off the skin and even skin thickness. The wonderful thing is that research has demonstrated that almost any amount of red light can have at least a small positive effect, but how much are you leaving behind? With the person guide you have the information to optimise your sessions, to help you if you need it, because 5-20 minutes 3-7 times a week isn't truly helping anyone. Some key examples here:

• For deep tissue issues (e.g., knee pain, muscle recovery): Higher power and longer exposure, or closer to the light — The need for near infrared is needed.
• For delicate areas (e.g., facial skin rejuvenation, thyroid health): Lower intensity with red light at 630-670nm for 5-10 minutes might well be enough.
• For hormone-specific applications: Protocols are adjusted based on the target organ, whether it’s the thyroid, ovaries, or testes.

When you purchase from Home Light Therapy, you receive a step-by-step personalized guide, ensuring the correct duration, distance, and frequency based on your goals and the specific device you’re using.

Take Control of Your Hormonal Health

If you’re struggling with fatigue, mood swings, weight gain, or hormonal imbalances, don’t wait for symptoms to get worse. Red light therapy is a natural, science-backed way to support your body’s ability to heal and regulate itself.

Have questions? Let’s talk. I’m here to help you make informed decisions about your health!