I know PES ships to some UK retailers, I'm not sure about pricing but with the weak dollar should make it reasonably priced or you always have the choice of buying from NP.Shipping and import tax (as well as admin fees in some cases) often make it cost prohibitive unless buying a lot.
Innovation in UK supplement companies is non-existent and new products are very rare. In a lot of instances the flagship products for the main companies are all-in-one formulas with creatine, glutamine and added aminos. Very basic.
Once the American products make their way over they tend to cost more so samples for things like pre-workout, stimulant and sleep formulas are nice to test out before buying, especially as very few Brits will have tried new ingredients. Most won't have even heard of creatine nitrate or fadogia.
come of my favorites are PP, they have top notch products with high quality ingredients and I cant hardly wait for the new releases AI and USP have a good diverse product line, Scivation has some good products as well.