sexual sides are usually 3-5 days if applied properly... for strength 2-4 weeks depending on your routine... not really BLTC... some preach bro science that is does because of the short esters and they way that "can" effect e2 levels... fact is... test is test... and if you dose your prop accurately and administer properly it will have the same effect as longer esters... it just hits faster and leaves at the same rate.