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Zyrexin
An over-the-counter male enhancement supplement marketed for erectile dysfunction, low libido, and improved sexual performance.
Epimedium Extract (Horny Goat Weed)
Traditionally used for libido and erectile function, but scientific evidence in humans is limited.
L-Arginine
An amino acid that may support blood flow by increasing nitric oxide, though likely too low in Zyrexin to be effective for ED.
Yohimbe Extract
Believed to have aphrodisiac effects, but associated with potential side effects and safety concerns.
Xanthoparmelia Scabrosa
A lichen included in some formulations for sexual function, but with little scientific support.
Cnidium Monnieri
Used in traditional medicine for aphrodisiac purposes, but lacking human data.
Velvet Bean Extract
Contains L-DOPA, a dopamine precursor, with unclear benefits for sexual health in humans.
Butea Superba
Sometimes touted as a natural PDE5 inhibitor, but studies have shown inconsistent results.
Efficacy of Zyrexin
No scientific evidence that Zyrexin or any oral supplement can permanently increase penis size.
Potential Side Effects of Zyrexin
Herbal ingredients may be toxic or interact with medications; Yohimbe linked to increased blood pressure.
Regulatory Oversight of Zyrexin
As a dietary supplement, Zyrexin is not rigorously tested for safety and efficacy by the FDA.
Traction Devices
Can provide a modest gradual increase in penis length with consistent use over months.
Vacuum Pumps
Help with erections but do not increase permanent penis size.
Medical Procedures for Penis Enlargement
Options like PRP injections or surgeries exist but should only be considered under medical supervision.
Conclusion of Zyrexin Effectiveness
Zyrexin does not enlarge the penis; any effect is a temporary improvement in erection quality.