I know that slin is very dangerous and am still in the researching phase. I finally found a source to get some humalog. I was wondering what's the difference between the different types that they have. They carry Humalog liquid 100u/ml 10ml solution and Humalog Mix75/25 suspension Solution 25/75 15 ml (5x3ml). What is the difference and what type would be best for what we use it for?