Topical creams may seem similar to Oestra®, but they behave very differently in the body.
If you're currently using a transdermal hormone cream and considering a transition to Oestra®, it's important to understand that switching delivery methods is not always a one-to-one exchange. Even if the dose appears similar on paper, your body may absorb and utilize Oestra® differently because vaginal delivery and skin-based delivery work through very different tissues.
For most women, we recommend a gradual 2-week transition period when switching from transdermal creams to Oestra®. Rather than stopping your current hormone cream immediately, continue using it while beginning Oestra® and allow the two therapies to overlap for approximately two weeks. After that transition period, you can discontinue your previous cream and continue with Oestra® alone.
This gradual transition helps support more stable hormone levels and may reduce symptoms that can occur when changing hormone delivery methods.
How Transdermal Creams Work
Creams applied to the skin:
Must pass through multiple skin layers
Often result in low and inconsistent absorption
Research shows topical progesterone, for example, produces very low blood levels compared to other methods
How Oestra® Works
Oestra®:
Uses the vaginal route, which is highly absorbent
Delivers hormones directly into circulation
Produces reliable systemic levels
Absorption Comparison
Absorption varies from person to person with every delivery method. In general:
Oestra®: The vaginal wall is highly vascular (blood-rich), which supports more reliable absorption
Topical creams: Absorption is often lower and less consistent
What This Means
With Oestra®, women often experience:
Stronger and more predictable results
Better symptom relief
More efficient hormone use
Bottom Line
While both are “non-oral,” Oestra® is generally more reliable than skin-applied creams.