Erectile dysfunction supplements being sold online have little to no science to prove they work, experts have warned.
A study of 21 ingredients used in six of Amazon's most highly rated erection supplements in the US found most had never even been tested in a study.
Only four ingredients had ever been proven to help and, while each pill contained at least one of those four,
레비트라 강직도 they also contained many other unproven ones
>The research also found a vast majority of positive reviews may not have been from genuine customers
>Scientists said people should be wary of being swayed by positive reviews or marketing and may be better off with medical options like Viagra
>Six erectile dysfunction supplements for
레비트라 강직도 sale on Amazon in the US were found to contain a total of 17 active ingredients for which experts couldn't find any scientific evidence to prove they would help a man with erection difficulti
r>The research by the Baylor College of Medicine in Texas looked at six of the most popular supplements on Amazon in September 201
r>The products were Korean Panax Ginseng (by NutraChamps), Leyzene with Royal Jelly (Natural Subsistence), Horny Goat Weed Extract (Zhou Nutrition), Boost Elite (Zhou Nutrition), Extra Strength L Arginine (Havasu Nutrition), and IncrediBULL (eSupplements
r>They contained four ingredients which studies suggest could actually improve the strength and frequency of a man's erections were ginseng, l-arginine, tribulus terrestris and maca roo
r>But the supplements also contained 17 other 'active' ingredients which science has never proved could improve erections, the research showe
r>
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r>These included tongkat ali, horny goat weed, muira puama, capsicum annuum, zinc, epimedium, saw palmetto berry, fenugreek seed and yohimbe bar
r>Diindolylmethane, AAKG, piperine, gluconolactone, L-citrulline malate, polypodium vulgare, rehmania root and royal jelly all also had no science to suggest they wor
r>Researchers trawled a database of past scientific studies of any of these ingredients' effects on erectile dysfunction, taking in 413 studies in total - 69 on humans.