The combination of Rogaine, which went off patent first, and Propecia, which went off patent in 2014, and Propecia, which went off patent in 2014, together with some other things that are going on in the industry, that's caused a dramatic increase in the availability, in the cost, and in the success of using these products.
專利先到期的落健、專利 2014 年到期的柔沛加上產業中的其他變化造成了這些生髮產品的易得性、花費以及使用成功率急劇增加。