Hopefully I’ve posted this in the correct area.
I’ve been purchasing e-liquid from a vendor for quite a while now called Ciggyjuice.
Just recently they have made concentrates available for all the flavours they sell.
Their e-liquids are some of the best I’ve vaped & their flavourings are just as good.
Their prices are pretty good as well.
The nic seems cheap enough!
http://www.ciggyjuice.co.uk/index.php?route=product/product&path=27_100&product_id=828
Thanks for the up. I just checked them out and they have some tobacco flavours I’ve never heard of. They will be joining the other flavours in my stock soon 
Edit: Pretty good service too, my order has been processed and shipped already.