You can get both HQ4% and Retin A from alldaychemist.com

Thank you! And will it lighten me significantly? I am currently Gabrielle Union's complexion and would like to be more like Ciara skin tone.

Yes HQ and retin A are very effective for lightening the skin several shades.

See,this is what I found.
I don't know if it is a good and reliable site... just check it out.They got 100% pure HQ,lotion with 5%HQ and 6%HQ...
Let us know what you think.

Skin Bleach Whitening, Pure Hydroquinon For Sale (http://www.ioffer.com/i/skin-bleach-whitening-pure-hydroquinon-146868167)

You can find retin-a and hq from
4rx.com
Skin-careonline.com
Dayscience.com
Alldaychemist.com
And from your doc. The best source!