right now im taking test400 and it contains 25mg/ml of prop 188mg/ml test e, 187 mg/ml cyp. within 2 days of my first injection last week i got flu like symptons and im just now getting over it. a friend of mine told me because of the test400 i have it is animal grade and the ph balance is different than what our body has so this causes the sickness. but it goes away in about a week once your body get use to it.