Alphabolin is the enanthate ester of methenolone, an injectable oil that Alpha Pharma supplies in five one-millilitre ampoules at 100 mg per millilitre. Five is a modest count for an injectable - enough to assess a lab rather than stock a shelf.
Where the acetate form of methenolone is short-acting, the enanthate ester stretches release out considerably, so the depot version stays in the system far longer and is injected much less frequently. The parent compound is derived from dihydrotestosterone and does not convert to oestrogen, which is the trait it is best known for.
