Lifespan of peptide effects to the human body?

[catguy]

Hi, i am new to this forum and recently started researching peptides.

Apparently the effects of Follistatin 344 is irreversible in its effects on the body.

Melanotan II apparently keeps a tan for a few years and the effects remain after still.

Then other people take things like GHRP-6 on a regular basis and cycle it etc, so i am guessing the effects are not long time?

So i was wondering is this the case for most peptides? also is there any good list of the lifespan of each of the common peptides or could someone possibly post one.

[dorianyates]

this is a good question i would like to know the answer as well