I had 3 bottles of Mastaplex from Axio that arrived and had a cloudy appearance to them. It also looked like some crystals in the bottom of vials. It's possible that it didn't mix right or was left in cold delivery truck during shipping. Anyhow I contacted my Axio supplier and told him the situation. He said send me a photo and he agreed it didn't look right. Well long story short..7 days later I had 3 new bottles of Mastaplex!!! GREAT SERVICE!!!