Monotherapy hrt levels
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Source Chance of T suppresion at 200pg/mL is between 77%-90%,
less than 100pg/mL = 24%,
500pg/mL = 95%,
100-200pg/mL = 58%
Chance is dependent on natual T in body
Transdermal bioavailability multipliers (E)
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Source Relative to forearm, scrotum has 5x absorbsion, and according to my calculations, face has about 1.2x absorbsion.
E Gel to systemic levels
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Source According to my calculations, 1mg =~ 30pg/mL, on forearm. Apply multipier if relevant.