Percutaneous progesterone delivery via cream or gel application in postmenopausal women: a randomized cross-over study of progesterone levels in serum, whole blood, saliva, and capillary blood. - 0 views
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Nathan Goodyear on 22 Jun 15Topical hormones best evaluated via saliva and/or blood spot. Urine and particularly serum does not increase with dosing. That does not mean the topical hormone therapy is ineffective, just that serum and Urine are not optimal to follow topical therapy. When looking at endogenous hormones without any therapies: serum, saliva, Urine, and blood spot are equivalent.