BioMed Research International / 2014 / Article / Tab 1

Review Article

Sexual Enhancement Products for Sale Online: Raising Awareness of the Psychoactive Effects of Yohimbine, Maca, Horny Goat Weed, and Ginkgo biloba

Table 1

Characteristics of sexual enhancer products sold online.

Brand nameIngredientsCostAvailabilityEffects/declared advantages from anecdotal online reportsSide effects/disadvantages from anecdotal online reports

Endowmax http://www.endowmax.com/Epimedium grandiflorum (horny goat weed); maca; damiana; L-arginine; Tribulus terrestris; gamma-aminobutyric acid; jujube dates extracts; Muira puama (potency woods); Catuaba bark; Xanthoparmelia scabrosa; Cnidium monnieri; Tongkat Ali (Eurycoma longifolia)59.95 $ per box; six-month supply for 239.95 $ Online suppliers (orders can be placed by fax and phone); Ebay; Amazon (currently out of stock).Powerful and natural; no unpleasant side effects; customers testimonials; money back guarantee; it is clearly stated the product does not contain Yohimbe.Up to 8 weeks for initial benefits; expensive.

Xytomax http://www.xytomax.com/Niacinamide (vitamin B3); zinc oxide; Epimedium sagittatum (standardized to 10% icariin); maca root; Guarana extract (standardized to 20% caffeine); Korean ginseng root; L-arginine; Muira puama; Longjack extract; Avena sativa; Yohimbe bark extract (2% yohimbine); Ginkgo biloba extract (24% flavonglycodises & 6% terpene lactones); saw palmetto (berry); Xanthoparmelia Scabrosa; Cnidium monnieri extract; GABA; damiana (leaf)69.96 $ per box; six-month supply for 309.95 $Online suppliers (orders can be placed by fax and phone); Ebay.Natural; working from the very first dose; customers testimonials; money back guarantee.It is not to be used in case of thyroid, kidney, or heart diseases or high blood pressure; more expensive than other products.

Xanogen http://www.xanogen.com/Epimedium grandiflorum (horny goat weed); maca; Yohimbe; L-arginine; Tribulus terrestris; gamma-aminobutyric acid; Muira puama (potency woods); Catuaba bark; Xanthoparmelia scabrosa; Cnidium Monnieri 89.95 $ per box; six-month supply for 419.95 $Online suppliers (orders can be placed by fax and phone); Ebay; Amazon (currently out of stock).100% natural products; money back guarantee; no negative side effects; permanent effects on corpora cavernosa.It could cause stomach upset if not taken with food; it does not provide immediate erections but stronger ones.

Virility EX http://www.virilityex.it/Yohimbe; maca; Elk Antler Velvet; Eleuthero; Longjack; Muira puama (potency woods); Catuaba bark; oat straws.29.89 € per box; six-month supply for 89.74 € Online suppliers (orders can be placed by fax and phone); Ebay; Amazon (currently unavailable).Stated as: “No side effects; 100% natural; money back guarantee.”Some users claim no results with this product; just a couple of customer testimonials were found on official websites with no FAQ sections.

Enzyte http://www.enzyte.com/Korean red ginseng; Gingko biloba; grape seed extract; horny goat weed; Muira puama; niacin; zinc.39.95 $ per box; six-month supply for 179 $Online suppliers; Ebay; Amazon.Premium natural ingredients; no gluten, no preservatives, no ephedra, no caffeine, no Yohimbe. Reported hives, facial flushing, insomnia, and internal bleeding; some users claim no results with this product.

Extagen http://www.extagen.com/Not clearly listed on website, just “herbs and phytonutrients.”59 $ per box; six-month supply for 198 $; twelve-month supply for 288 $Online suppliers (orders can be placed by phone, and mail too); Ebay; Amazon.Natural, vegetarian and hypoallergenic; money back guarantee; it is clearly stated the product does not contain Yohimbe; customers testimonials.Contraindicated in case of high blood pressure or other medical conditions.

Extenze http://www.extenze.netL-Arginine; Eleutherococcus; Yohimbe bark extract; nettle; ginseng; folate; micronized DHEA; Muira puama; pregnenolone; zinc; black pepper; Piper longum; ginger. Cnidium monnieri; Astragalus: Xanthoparmelia Scabrosa; boron; GABA; velvet deer antler; horny goat weed; damiana; pumpkin; licorice extract; Ho Shou Wu extract.59.95 $ per box; six-month supply for 305.95 $; ten-month supply for 499.95 $Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.Stated as: “all natural; assures penis enlargement in addition to increasing sexual stamina; customers testimonials; money back guarantee.”Legal controversies; reported increased heart rates, agitation, and nervousness.

Maxidus http://www.maxidus-pill.com/Eurycoma longifolia; Flos catharmi; Rizoma Curcumae longae; Gingko biloba; Herba Epimedii; Herba Cistanches; Astragalus membranaceus; Momordica charantia L (Ku Gua).39.95 $ per box; six-month supply for 399.75 $; twelve-month supply for 479.40 $Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.Stated as: “works in 10–30 minutes and lasts for up to 4 days; money back guarantee; 100% natural; it can be taken by people with heart or prostate problems, hypertension, diabetes; it can be used by women too.”Slight headache reported; expensive; clinical tests carried out are shown for only one ingredient (Eurycoma longifolia).

Orexis http://www.orexis-pills.co.ukTribulus terrestris; Epimedium sagittatum; Muira puama; Panax ginseng; Catuaba bark extract; damiana; Yohimbe extract.29.16 £ per box; six-month supply for 135.00 £; twelve-month supply for 262.50 £Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.Stated as: “all natural; works within 45 minutes; customers testimonials; money back guarantee.”Legal issues; interaction with antidepressants, diuretics, and high blood pressure medications.

Pro Solution Pills http://www.prosolutionpills.com/Solidilin; Korean ginseng; Butea superba; Momordica; apigenin; Amla; Arjuna; Cordyceps; zinc oxide: reishi mushroom; Curculigo; drilizen; bladderwrack. 59.95 $ per box; six-month supply for 289.95 $; twelve-month supply for 399.95 $Online suppliers (orders can be placed by fax, phone, and mail); Ebay; Amazon.Stated as “all natural; no side effects; multiple orgasms per sexual encounter; customers testimonials; money back guarantee.”Reported nausea, hypertension; increased heart rate, dizziness; it needs 5-6 months before the user notices the desired results.

Provigro http://www.provigro.comHorny goat weed; maca root; saw palmetto; Tongkat Ali; Mucuna pruriens 10% L-dopa; Muira puama; L-arginine; Panax ginseng.34.97 $ per box; three-month supply for 57.80 $Online suppliers (orders can be placed by fax, phone, and mail).Stated as “natural vitamins, minerals and herbs”; customers testimonials; money back guarantee; it does not contain Yohimbe.Reported nausea, dizziness, and vomiting; it may take up to six months to work.

Quantum Pills http://www.quantumpills.comL-arginine; L-lysine HCL; maca root; Muira puama; Swedish flower pollen extract; horny goat weed; Catuaba bark; Gingko biloba; zinc oxide.44.95 $ per box; six-month supply for 189.95 $Online suppliers (orders can be placed by fax, phone, and mail too).Stated as a “climax enhancer,” assures increase in ejaculation volume; natural; money back guarantee; customers testimonials.No permanent results; no scientific proofs and no adequate ingredients explanation.

Sinrex http://www.sinrex.comBioperine; copper chelate; creatine; Cuscuta seed; Gingko biloba; green tea extract; Hawthorn berries; Epunedum Sagitum; inosine; L-arginine; maca; omega 3; saw palmetto; Siberian ginseng; soy proteins; Tribulus terrestris; vitamin E.39.95 $ per box; six-month supply for 199.95 $Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.Presented as “all natural; money back guarantee; customers testimonials; semen volume and orgasm intensifier.”At least one month for initial results; possible allergies to ingredients.

Sizepro http://www.sizepro.comVitamin E; vitamin B3; horny goat weed; hawthorn berry; damiana; Muira puama; Gingko biloba; Chinese ginseng; Tribulus fruit extract; Catuaba bark; saw palmetto; inosine; L-arginine; oat straw; cayenne fruit; soy protein.Two-month supply for 99.95 $; six-month supply for 245.95 $Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.Natural; “Lasting increase of penis thickness and size; money back guarantee; customers testimonials.”

Vazomyne http://www.vazomyne.netNot completely listed. Vazomyne includes L-arginine, saw palmetto, Gingko biloba, damiana, Polygonum multiflorum, nettle leaf, Muira puama.39.99 $ per box; three-month supply for 99.98 $Online suppliers (orders can be placed by fax, phone, and mail too); Ebay.; Amazon (currently not available).Presented as: “natural; money back guarantee; customers testimonials.”Ingredients are not fully listed nor explained in details; “It should not be taken in case of heart or thyroid problems; will not increase penis size.”

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.