Does anyone know where I can buy 4%-10% HQ? If so, can you please PM me with a link to a website.

I know where you can buy 4% but not higher.
Prescription Medicines - Prescription Drugs & Medicines, Indian online pharmacy for all type of generic drugs (http://www.alldaychemist.com)
Hope this helps you.

I already had this one, but thanks.

I would like to know myself where to buy 10% hydro.. mono.net sells it but there stuff is crap... 10% hydro did wonders on my skin when I was able to get it few years back I was so upset the company stop selling it.