each time i jab i get a bad ass red, hard bump each one, went down, all in glute,s had a go in my delt and could not move my arm fore 7 days, went red all ok now
i asume it,s the fact it is 400mg and a mix of 4.esters :)
the last jab i did was with a 1.5" not a 1"and it,s not red, it,s ok...