Laser Medicine, London, at the Harley Street Fertility Clinic specialises in the application of the best light for fertility and conception. We have worked with many patients since 2015, using Class 3b and Class 4 therapeutic laser protocols. We collaborate with leading gynaecologists and IVF clinics in the central London / Harley Street area, and centres of fertility excellence further afield in Europe and the USA, who also work with the best red light therapy equipment for fertility and conception.

Light therapy is also widely referred to as Low Level Laser Therapy and Red Light Therapy, whilst the medical community refer to it as Photobiomodulation Therapy (PBM). People often ask if any of the home use red light LED devices available to purchase online, which also emit infrared (IR) or near infrared (NIR) wavelengths, are suitable and effective to help improve the quality of eggs. For many years we have struggled to recommend a suitable device. However as the quality of home use devices improves we have now sourced what we believe is the best light for fertility at home: The Hue Light Abdomen Irradiator.

The following article discusses:

1. The best red (IR) and near infrared (NIR) wavelengths and the optimum power output and dosage of laser therapy for fertility and conception.
2. The type of laser equipment and protocols used in our own clinical studies, and ones carried out in Japan and Europe.
3. The protocols protocols at Laser Medicine, London to improve egg quality and fertility for women and men, and our ongoing work with IVF clinics around the world.

Please visit our Services page to find out about a Laser Medicine course of treatments in Low Level Laser for Fertility.

Clinical studies in red light therapy for fertility

Laser Therapy, also known as Light Therapy or Photobiomodulation Therapy (PBM) proves successful in various clinics worldwide to address the issues for improving egg quality for IVF, slow down the ageing process and significantly improve fertility in women (and men). Success rates in Europe are reported to be as high as 65% for patients who failed to fall pregnant before. None of these studies used a home use or LED red light device. Instead they used clinical grade Class 3b and Class 4 Laser equipment calibrated to the highest power output possible for a non-thermal laser device.

You can read about how photo medicine is used to improve reproductive health, including the exact dosimetry and protocols used at Laser Medicine in a number of successful case published in the National Institute of Health PubMed journals here:

The Efficacy of Multiwavelength Red and Near-Infrared Transdermal Photobiomodulation Light Therapy in Enhancing Female Fertility Outcomes and Improving Reproductive Health: A Prospective Case Series with 9-Month Follow-Up (Phypers et al 2024).

Photobiomodulation in Complex Female Infertility Profile: A Case Report with 12-Month Follow-Up and Review of Current Mechanism in Reproductive Photomedicine (Phypers & Hanna 2025).

The first laboratory studies to show the effectiveness of Low Level Laser Therapy for Fertility were carried out in Japan between 1996 and 2012 (the Oshiro studies). Clinical Class 3b laser with a continuous wave of light was used, and with a power output far higher than could possibly be emitted by a home use red light LED device.

The Japanese protocol in the Oshiro Photobiomodulation fertility studies involved the application of light to nerves at the back of the neck in order to enhance mitochondrial activity and ATP production throughout the body, increase blood flow and blood quality, reduce oxidative damage, and to increase the energetic value of a developing embryo in early stages. Light was applied at a power of 60 mW in continuous wave at a nominal 830nm. The incident irradiance was 1.2 W/cm², and the irradiation time per point was 15 seconds, giving a fluence of 18 J/cm²/point.

A protocol used in Denmark was carried out with GigaLaser produced by Powermedic which is a Class 3b Laser device available to purchase at approximately $42,000. The total dose per treatment for women, was 20,000 Joules delivered over the entire abdominal area (15,000 Joules of near infrared laser light at 808nm, plus 5,000 Joules of red LED at 660nm). It would be impossible to achieve this kind of power from an LED device, even over several months. The Gigalaser equipment is located at our Harley Street fertility clinic and courses of treatments are recommended in the lead up to natural conception or IVF / ART programmes.

In the Danish studies for male fertility, the protocol used for men and sperm quality was applied using a Class 3b laser device, designed to treat smaller areas (the PowerLaser Pro500 at a retail cost of around $7,000). The total dose of red light therapy for fertility was 10 Joules per testicle with near infrared laser light at 808 nm.

You can access detailed information on all the studies into Low Level Laser Therapy for Fertility below:

https://www.mdpi.com/2077-0383/13/23/7101
https://www.mdpi.com/2304-6732/12/10/1021
https://www.jstage.jst.go.jp/article/islsm/15/1/15_1_37/_pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5108999/pdf/islsm-25-229.pdf
https://www.jstage.jst.go.jp/article/islsm/19/4/19_4_257/_pdf
https://www.jstage.jst.go.jp/article/islsm/11/2/11_2_96/_pdf
https://www.jstage.jst.go.jp/article/islsm/16/3/16_3_133/_pdf
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4639673/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3944482/
https://ifsymposium.com/talk/low-level-laser-therapy-lllt-egg-quality-and-peak-fertility-potential

At Laser Medicine we work within industry guidelines and best practice, and would not apply light over a pregnant uterus during pregnancy. It is also very important to not apply light to the thyroid gland in the case of an overactive thyroid or Grave’s Disease.

Please visit our Services page to find out about a Laser Medicine course of treatments in Low Level Laser for Fertility.

The best light for fertility to improve egg and sperm quality

At the Laser Medicine Harley Street fertility clinic, we continue to monitor and celebrate the positive effects of Photobiomodulation (PBM) or red light therapy for reproductive health and fertility. The optimum age to promote fertilisation via LLLT is for women in the mature age group of 35-50, because reproductive cells are more likely to lack cellular energy from the ageing process.

We work with each patient to improve egg quality for IVF and optimise overall health. We use recognised standard fertility LLLT / light therapy protocols, in conjunction with many other PBMT protocols to maximise the overall health and efficiency of the individual patient, and production of a healthy embryo. The mechanisms and protocols we use are designed to help rejuvenate eggs and sperm motility, maximise egg quality potential, to prepare the body for fertilisation, and for the development of a healthy embryo leading to a full-term pregnancy.

Laser Medicine therapeutic laser equipment and fertility protocols:

We use a combination of Class 3b and Class 4 Therapeutic laser clinical equipment to deliver the best light for fertility. We work with Omega Laser Systems XP Clinic Medical Class 3b Laser, K Laser Class 4 Therapeutic Laser, and the Powermedic Giagalaser, using a combination of protocols that are tailored to the individual’s needs. Our equipment collectively delivers a range of wavelengths between 600nm and 1,000nm,. The 800nm range is particularly crucial for fertility photobiomodulation, as light photons attach to blood to reach deep into tissue and to the reproductive organs. The therapeutic power output of our equipment ranges between 960mW and 15W.

A 820nm at 200 mW laser with a power density of 1.60 W/cm2 is used to deliver energy through the abdominal tissue, and in certain cases internally at the cervix. A four diode Class 4 laser with wavelengths at 660nm, 800nm, 905nm, and 970nm, with a power density of 15 W/cm² is also used to apply light through the neck, secondary lymph organs and to the reproductive system. We assess each patient individually and tailor our protocols accordingly. We anticipate a publication of a number of successful case studies in September 2024.

A series of Low Level Laser Treatment is recommended during the lead up to a fertilisation, regardless of whether fertilisation is to be achieved via natural or ART/IVF methods. The best light for fertility prepares the body and reproductive organs, and promotes optimum conditions for conception to take place. The overall general health and age of a patient determines the frequency of treatment, which is normally around 4-6 treatments every 6 weeks. During a period of trying to conceive (either via natural or IVF methods), we base our protocols around a schedule of 6 treatments over a period of 2 weeks from Day 1 to Day 14 of the cycle, and if conception does not take place, to repeat the following month.

The best home-use Class 2 LED laser device for fertility.

The Hue Light Abdomen Irradiator is an outstanding piece of equipment, designed to penetrate deep into the abdominal area to support reproductive health. Finally, we can recommend a home use device that we believe to positively impact fertility outcomes! The Hue Light PBM Abdomen Irradiator is perfect for frequent and regular use at home to support fertility outcomes and improve digestive gut microbiome health. It is designed for multiple applications with clinical-grade performance. Made from super flexible silicon, the device has more than 500 premium LED light diodes that deliver even coverage with infrared and near-infrared light. 850nm and 940nm wavelengths enable deep penetration into the abdominal tissue: 800nm wavelengths are absorbed in the tissue by haemoglobin, and the 900nm wavelengths are absorbed by water. For deep abdominal penetration there is no need for 600nm wavelengths which are generally absorbed by melanin and therefore only useful for skin health.

In addition the PBM Abdomen Irradiator has programmable light modes, along with Nogier frequencies which enhance healing and recovery in a variety of settings:

• Provides a viable option for people who need red light therapy at home, who are restricted from regular visits to our clinics, either due to geographical or time constraints.
• Offers additional red light fertility therapy at home for patients in the lead up to an IVF cycle.
• Supports natural conception to use the device in the lead up to ovulation.
• A perfect device when travelling. The Abdomen Irradiator is compact and strong to fit into hand luggage or suitcases between clothes.
• Best in class technology – designed and manufactured in Korea (none of its components are made in China).

About Laser Medicine

Laser Medicine is a member of the following professional bodies:

• British Medical Laser Association (BMLA).
• Complementary Medical Association (CMA).
• World Association of PBM (WALT).

For more information on the Laser Medicine London, Harley Street Fertility Clinic and our Laser Therapy for Fertility Services.

To talk to us directly and discuss how PBMT or Low Level Laser may be suitable for you, please Contact Us.