China?

looks like I'm going to Beijing. Tuesday.
I got all I need. Chinese VISA, plane ticket and no stuff to declare at the custom.
And, I have some tasks to accomplish:
-Meet Ekber, my Uighur friend
-Buy some traditional chinese medicines to a chinese shopkeeper in Colleferro*
-Learn chinese
-Play in a band
*This deserves further explanations: I got into that shop(the average cheap Wenzhou family owned shop, that sells anything except food, from psychedelic Jesuses to mugs to electronic stuff) to buy me a pair of headphones as my old ones sucked. The shopkeeper(1,50m and strange teeth) tells me she's got two different kind of headphones and that one is rubbish and the other is not.
I finally decide to buy the most expensive ones(2.50€) and then start speaking chinese...
It was not properly mandarin chinese: I'm italian and I know only a few words and she is from Wenzhou and only speaks Wenzhou dialect...
We end up speaking about how cheap the food in Beijing is, and in the end she takes a chinese magazine and tells her daughter(金意晓) to write something on my notebook.
She explains me it's some medicines she's asking me to bring. From Beijing. The medicines are:
-鑫男受丸
-强精补肾丸 classified as 药
-猛龙壮阳丸
She tries to explain me what they're for, but I really don't get it... then I head to the door, but she stops me, and sais something incomprehensible about something that will make her thinner<>, but she doesn't remember its name. She calls her husband, that gets in with a little girl, and after having yelled something at his wife tells me something in heavy Wenzhouhua. After a while, 金意晓 starts writing.
it's the 瘦身汤, something like a herbal tea, and it's a 中药... The woman tells me that If I'll get her the medicines, she'll get all my money back... I said goodbye, everybody smiled a lot, and I got home.
While I'm walking, I notice something funny on the Sanwei headphones pack. Figure it out yourselves:

As I got home, I looked for all of the medicines on www.alibaba.com but the 强精补肾丸 costs some 78€ and I won't buy it to that chinese lady.
A friend of mine told me that Beijing will change me.
She also told me that in Beijing I should avoid jerking off and fuck girls. I always appreciate fiends' advices!