Evidence supporting the use of: Arginine
For the health condition: Sex Drive (low)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Arginine is an amino acid that serves as a precursor to nitric oxide, a molecule that helps relax blood vessels and improve blood flow. This mechanism is the primary reason for its use in supporting sexual function, particularly in men with low sex drive or erectile dysfunction. Several small clinical studies have investigated L-arginine supplementation’s effects on sexual function. Some trials have reported mild improvements in erectile function, especially in men with low baseline nitric oxide levels or mild to moderate erectile dysfunction. However, the magnitude of benefit is generally modest, and not all studies have shown significant effects. Evidence for its effects on female sex drive is even more limited and less conclusive.

Systematic reviews and meta-analyses generally conclude that while L-arginine may provide some benefit for sexual function—mainly in combination with other supplements such as pycnogenol or yohimbine—its effect as a standalone therapy is small and not universally observed. Major medical guidelines do not endorse L-arginine as a primary treatment for low sex drive or erectile dysfunction, but recognize it as a possible adjunct in select cases.

In summary, the scientific evidence supporting arginine for improving sex drive is limited and inconsistent, earning it a moderate-low rating. More large-scale, high-quality studies are needed to establish its efficacy and optimal usage for this purpose.

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Products containing Arginine

We currently have no products on Caring Sunshine that contain this ingredient.