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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; scientific evidence in humans is limited.
L-Arginine
An amino acid that may support blood flow by increasing nitric oxide, though its dosage in Zyrexin is likely too low for effectiveness.
Yohimbe Extract
Believed to have aphrodisiac effects, but associated with potential side effects and safety concerns.
Xanthoparmelia Scabrosa
A lichen sometimes included for sexual function, with little scientific support.
Cnidium Monnieri
Used in traditional medicine for its aphrodisiac properties, but lacks sufficient human data.
Velvet Bean Extract
Contains L-DOPA, a dopamine precursor, with unclear benefits for sexual health in humans.
Butea Superba
Sometimes claims to be a natural PDE5 inhibitor, but research shows inconsistent results and concerns about toxicity.
Effectiveness of Zyrexin
Mixed results reported by users regarding improved erection quality and stamina; some batches found adulterated with prescription ED drugs.
Safety Concerns of Zyrexin
Involves potential side effects, undisclosed ingredients, and lack of regulatory oversight compared to prescription medications.
Penis Enlargement Methods
Effective options include traction devices and medical procedures, while pills and supplements like Zyrexin do not provide permanent size increases.
Conclusion on Zyrexin
Zyrexin does not enlarge the penis; its primary effect is temporary improvement in erection quality, not a permanent change.