I have been considering getting some Quikclot haemostat products to put in the FAK for major trauma.
I was talking to a military medic today - he has 4 tours in war zones under his belt and has instructor qualifications. He told me that the British Army don't use Quikclot granules any more. Basically, if it blows about and gets in your eyes it can cause corneal damage due it being a very powerful dehydrating agent. This has happened a number of times in the field. The Quikclot sponge dressings were developed to address this problem and should be safe in this regard.
However, British Army medics now use Celox products. This is a higher tech system which combines specifically with blood, rather than water - to gel and provide topical clotting.
It's a good enough recommendation for me. Whatever heamostat you choose, it is probably wise to avoid Quikclot granulated products.