What are the differences between these two? Is it the ester?
GEORGE SPELLWIN'S ANNOUNCEMENTS

Excerpt: What are the differences between these two? Is it the ester?
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What are the differences between these two? Is it the ester?
Yes they are both nandrolones with different esters.
Durobolin is a faster acting and clearing drug. Deca lasts for up to three weeks.
Durabolin has phenylpropionate ester, approx. 4-4.5 days half life;
Deca-Durabolin has decanoate ester, approx. 6-7 days half life.