Max 4 Men Max Vitality Sensual Stamina Treatment from Classic Erotica. THE STATS: Technologically Advanced Formula Designed to Maximize Penis Volume, Enhance Penis Stamina & Invigorate Sexual Performance, Developed with Tribehenin & Butea Superba-Known to Help Temporarily Enhance the Penis while Supporting Erections, Sexual Stamina & Arousal. Tribehenin-Forms a Barrier to Keep Skin Hydrated, to Temporarily Assist with a Firmer Erection, Butea Superba Root Extract-Known to Initiate &Maintain Strong, Longer Erections, Use as a Daily Treatment.