Rapid ejaculation affects one out of every four men. Low levels of serotonin in the brain have been associated with rapid ejaculation or premature ejaculation. A natural extract of St. John’s wort, called Hyperforin, has been demonstrated pharmacologically to inhibit serotonin reuptake and delay the onset of male ejaculation. Combined with a potent nitric oxide booster, like L-Citrulline, one capsule of PreLONG per day may help you maximize your sexual performance without sedation, anticholinergic reactions, gastrointestinal disturbances, and sexual dysfunction.