Testosterone Half Life

If test ent. has a half-life of six days, when should one
considered of the stuff ?

Lets say on day 1 I inject 750 mg-Is the following correct?

         day 7 375 mg remains,
         day 13 187,5 mg remains,
         day 19 94 mg remains ,<P>

Bill Roberts stated in an article that 100 mg of test is
substantially inhibitory of endogenous test production so
when should I consider myself off ?

The 100 mg/week level is about 50% inhibitory of natural LH, and so you can consider yourself “partially off” at that level. I count 50 mg/week, pretty arbitrarily, as being no substantial inhibition.

So see how many times you have to divide by two to get down
to 50 mgs from whatever your weekly dosage level is, multiply by 6, and it’s that many days. Or if you want to
know when you have the potential for some significant though
partial recovery, do the same but divide down to 100 mg.

Example, you’re using 800 mg/week. After 5 or 6 days without
injecting, you’re down to the 400 mg/week level; after 10 or 12 days down to the 200 mg/week level, etc. So you have to
divide by 2 four times to get down to 50 mg… so it takes
20 or 24 days before there really is rather little inhibition at all. At 15 or 18 days you can have pretty substantial recovery though.

So what you wind up with is, the first week after the last injection is still definitely “on” and can give good gains
and won’t allow significant recovery. By 2-3 weeks after
that injection T levels from the injection are low enough
to allow recovery.