The pheromone colognes are like any other product 100% natural, ie not need any prescription to buy them, since they are not drugs, but still, there are some brands that do offer these medical recommendations, which undoubtedly leads the quality and effectiveness of the product, so we advise you to seek medically endorsed colonies, as they always have more security. Only some of them have evidence of health professionals.We must also take into account a fact of great importance: in the time that these revolutionary pheromone colognes have been on the market are made with a share of satisfied customers who have exceeded all expectations, and all this success is due, how could it be otherwise, to have shown great effectiveness, something that is not pure chance, but applied science to establish and improve our social relations by increasing our personal appeal and our esteem and confidence ourselves.