JO For Men Pheromone Booster. Harness the power of attraction with JO Pheromone Booster Cream. Using ground breaking technology, this formula uses a proprietary blend of natural plant derived ingredients that have been shown to significantly boost male sex pheromone production. Features: heightens sexual attraction. Boosts male sex pheromone production. Hormone free, contains no animal by products. Daily use cream delivers results in as little as 15 days.