If you’ve previously used another form of hormone replacement therapy (HRT), it’s important to understand that transitioning to Oestra® is not a one-to-one switch. Even if the “dose” may look similar on paper, your body will experience it differently—often as a meaningful increase in active hormone support.
Here’s why:
Not All Hormone Delivery Methods Are Equal
Hormones can be delivered in several ways—oral tablets, patches, creams, pellets, or vaginal formulations like Oestra®. Each route affects how much hormone your body actually absorbs and uses.
Oestra® uses vaginal delivery, which:
* Bypasses the liver (avoiding first-pass metabolism)
* Allows for significantly higher bioavailability
* Leads to more consistent and efficient absorption
In contrast:
* Oral HRT must pass through the digestive system and liver, reducing how much is ultimately available to your body
* Patches and topical creams vary widely in absorption depending on skin permeability, placement, and individual factors
Estimated absorption rates:
* Vaginal delivery (Oestra®): ~80%
* Oral or transdermal methods: ~10–30%
👉 This means that even a starting dose of Oestra® may deliver more usable hormone than higher doses from other methods.
Why Switching May Feel Like a “Step Up”
Because of this increased absorption, many women experience Oestra® as a step up in therapy—even if they were previously on HRT.
This is not a negative thing—it reflects:
* More efficient delivery
* More stable hormone levels
* Greater ability to support full-body systems (brain, skin, vaginal tissue, bones, etc.)
However, it does mean your body may need a short adjustment period.
What to Expect During the Transition
If you are currently on HRT:
* Your transition is often smoother
* Symptoms tend to be milder or shorter-lived
* Your body already has some hormonal baseline support
If you’ve been off HRT for a while:
* This transition may feel more like starting from the beginning
* You may notice more pronounced symptoms initially as your body readjusts
* Patience is especially important during this phase
Special Consideration: Pellet Therapy
If you are transitioning from hormone pellets:
* It’s best to wait until you are nearing your next scheduled refill (typically ~3 months)
* This allows most of the previously implanted hormones to naturally decline
* Starting too soon can lead to overlapping hormone levels and unwanted symptoms
The Bottom Line
Switching to Oestra® is not just a change in product - it’s a change in how your body receives and utilizes hormones.
Because of its high absorption and bioavailability:
* Doses do not translate equally between delivery methods
* Even a starting dose can be highly effective
* Your body may need a brief period to recalibrate
Consistency Is Key
No matter your starting point, the most important factors for success are:
* Consistency in use
* Patience during adjustment
Most women find that their bodies rebalance more quickly with Oestra®, as it is designed to work in harmony with your body’s natural rhythms.
If you ever feel unsure during your transition, our team is here to support you every step of the way.