Sources/Excerpts: Oral Progesterone Achieves Very Low Levels of Progesterone and Has Only Weak Progestogenic EffectsPublished bytransfemscience.orgon •1 min readBy Aly | First published August 4, 2018 | Last modified September 25, 2022SourcesExcerptsOralProgesteroneAchievesLearn moreShareLegalReport