I am only taking a guess here, im not sure on the biodegratability of the liquid compared to the pill, but it must be very insignificant or the people taking the liquid would not notice the effects of it...
The price alone should be the overwhelming factor. Liquidex is a fraction of the price of pills (generic or Arimidex). Even if some of the compund is degraded by the solvents, you are still getting more mgs for the $.
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