The safest thing is to massage yourself. Through scientific and systematic massage training, it naturally becomes bigger. I am an example myself. I was not sensible before, bought thousands of pieces of ointment, and the effect was minimal. There were many hormones, which scared me to use it.

Later, I followed Nutu's VIP technology and massage method for two months. Now it's 36C, and it doesn't cost money. You can go and have a look. It's awesome.