I am new here and very unconvinced, but I decided I would test a product seeing how there is a money back guarantee. So, How good is the customer service/return policy. I can return my used bottle within a year and I will get my full amount paid returned, correct? Who pays for shipping returned? and How much is the shipping? Suggest to me the best product to try for my first time using pheromones. Witch product would most likely convince me that pheromones do have a significant effects on humans?(besides instant jerk, I am looking for something with a positive effect) Thank you