I currently use three companies for Hormonal Saliva testing. Which company I use depends on the cost, the testing offered and the testing needs of the woman in question. (I do not make any money from testing. ) These are zrtlabs.com , diagnostechs.com, and genovadiagnostics.com
You can visit these sites to learn more about Saliva testing.
Saliva testing or fingerstick blood testing is best for women who are using hormones already and especially topical hormones. The tests can be contaminated if you collect improperly when using topical so use gloves to apply the creams for a few days before collecting in addition to very thorough hand washing. This is also a great idea if you have small pets or young children in your households or under your care to avoid contaminating these precious to you and there can be serious consequences.