Are OTC Testosterone Supplements Effective?

There is no evidence that over-the-counter (OTC) testosterone supplements (“T boosters”) can help increase testosterone levels.

Over-the-counter (OTC) testosterone supplements, also called “T boosters” are often taken by men who wish to increase their testosterone levels. However, there is no evidence these supplements are effective. 

• Testosterone is a male sex hormone and it helps regulate sex drive (libido), muscle mass and strength, fat distribution, bone mass, and the production of red blood cells and sperm.
• Most men will experience a gradual decline in testosterone starting in their 30s, which may result in symptoms such as erectile dysfunction and loss of strength. For this reason, many men look to OTC testosterone supplements to restore what may have been lost. 

Many of these OTC testosterone supplements make claims that they “boost T or free T,” “build body lean mass or muscle mass,” or “increase sex drive or libido.” The issue with these supplements is that many do not have ingredients that can help increase testosterone levels. Zinc, vitamin B6, and fenugreek extract are common components in these supplements but none of them have been shown to improve testosterone levels in men. Many of these supplements also contain excessively high doses of vitamins and minerals. 

In addition, dietary supplements, including OTC testosterone supplements, are not regulated by the Food and Drug Administration (FDA) and: 

• May not do what they claim
• May not contain quantities of ingredients listed on the label
• May not contain the ingredients listed on the label at all
• May contain additional ingredients not listed
• Don’t always work as advertised
• May be dangerous

Talk to your doctor before taking any supplements.