What is the red light therapy regarding testosterone?

Testosterone is an integral part of a man’s lifetime. Testosterone is a steroid hormone, responsible for the development of the male reproductive system and secondary male characters like muscle and bone mass and the growth of body hair. The fundamental function of testosterone is testicular descent, spermatogenesis, enlargement of penis and testes and enhancing sex drive. The regulation of these functions occurs only at a normal level of testosterone. Elevated levels of testosterone do more harm than good. After hitting 30, there is a gradual drop in the levels of testosterone. It starts to manifest as weight gain, low libido, loss of muscle tone and bone density. Decreased production of testosterone can also occur with certain medications, chemotherapy and with few genetic disorders

Sooner or later, as men start to notice this transition, impairment begins to appear. There is all manner of therapies available to increase the testosterone level, but either they take too long or comes with adverse effects, sometimes even prostate cancer.

 One such treatment modality is low-level laser therapy or red light. Near-infrared light has been widely accepted treatment of choice for muscle ailments and pain management. It usually produces the effect in a small or localized area but it also affects the circulation of blood throughout the body 


Red light works by increasing the concentration of calcium ions that stimulate the generation of ATP inside the mitochondria of Leydig cells. ATP is the currency of energy utilized by the body. The generated ATP release Nitric oxide, enhance the motility of spermatozoa and production of testosterone. The other school of thought is that red light activates ‘OPSIN’ proteins. Opsins are photoreceptive proteins present in testicles, eyes, and brain. Photo-activation of these testicular proteins stimulates the production of testosterone.


Red Light is considered to be the safe therapeutic method for raising the levels of testosterone. UV light should be avoided as they inhibit the production of ATP. Red light penetrates the deeper layers of tissues and brings about changes in the hormonal level. The exposure of wavelength 600-950nm is advised for 5-15 minutes. Over-heating the testicles will destroy sperm cells. It is the easiest method as you have to expose your testicles to red light while doing your favourite activity. You can indulge yourself in reading, chatting and talking to your favourite person. A noteworthy rise in libido, erection and fertility is seen. The aim is to achieve desirable results from the light and not the heat. It may provoke a non-inflammatory response in blood or can cause coagulation disorder. These are the reported side-effects that may occur on chronic use.


Currently, there are no FDA approved lamps for this purpose but considering the very low risk associated with the usage of red lamps, any safety-certified lamp could be availed. Consumption of alcohol should be subordinated as alcohol affects the fertility of sperms. Viagra shows a similar effect like alcohol, hence it shouldn’t be taken during the course of red light therapy. There are other cardinal ways to increase testosterone levels like having a balanced diet, stress management, lifestyle changes and a healthy routine to motivate oneself at work and home. Anyone before undergoing any therapy should meet an expert and note down his advice. Sometimes you may not need the therapy but someone close enough to talk to you or to listen to you. Speak to your partner about the changes in your body and about the emotional turmoil you are going through. It is an affirmatively curable situation. All you need to do is to get it diagnosed appropriately. 

No content on this site should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. The sole purpose of these articles is to provide information about health and wellness. This information is not intended for use in the diagnosis, treatment, cure, or prevention of any disease.
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