HRT · Progesterone
Progesterone patch: what actually exists, and what to use instead.
Patients often ask for a progesterone patch to match their estradiol patch. Here is why a standalone bioidentical version does not exist — and what your effective, evidence-based options are.
The short answer
There is no FDA-approved bioidentical progesterone patch. What does exist are two FDA-approved combined estrogen-progestin patches that deliver estradiol plus a synthetic progestin from a single adhesive:
- CombiPatch: 17β-estradiol + norethindrone acetate. Applied twice weekly.
- Climara Pro: 17β-estradiol + levonorgestrel. Applied weekly.
These are excellent options for patients who want a single transdermal delivery method. They are not bioidentical progesterone — they contain synthetic progestins with slightly different receptor profiles and side-effect signatures than micronized progesterone.
Why bioidentical progesterone doesn't come as a patch
- Progesterone is a large, poorly-absorbed molecule through skin.
- Blood levels from transdermal delivery are inconsistent and dose-unpredictable.
- No study has shown adequate endometrial protection from transdermal progesterone — the safety endpoint the FDA requires.
- Oral micronized progesterone (Prometrium) and vaginal progesterone both have strong endometrial-protection data and are inexpensive.
What Kindr actually prescribes
- Estradiol patch + oral micronized progesterone 100 mg nightly: the most common regimen. Bioidentical estrogen, bioidentical progesterone, transdermal + oral routes.
- CombiPatch or Climara Pro: for patients who want one patch and are comfortable with a synthetic progestin.
- Estradiol patch + vaginal progesterone: for patients who cannot tolerate oral micronized progesterone (sedation or paradoxical mood effects).
What to avoid
OTC progesterone creams and unregulated compounded transdermal progesterone. Blood levels are inconsistent and NAMS 2022 explicitly cautions they do not reliably protect the uterine lining — a safety issue for anyone with a uterus on systemic estrogen.
Sources
- NAMS 2022 Hormone Therapy Position Statement
- FDA labels — CombiPatch, Climara Pro, Prometrium
- Endocrine Society 2015 Clinical Practice Guideline
Frequently asked questions
Is there a progesterone patch?
There is no FDA-approved standalone progesterone patch in the United States. Combined estrogen + progestin patches exist (CombiPatch, Climara Pro), which contain a synthetic progestin (norethindrone acetate or levonorgestrel), not bioidentical progesterone.
Why is there no bioidentical progesterone patch?
Progesterone is a large, lipophilic molecule with poor transdermal absorption. Delivering a clinically useful dose through the skin requires very large patches or high concentrations that have not achieved FDA endometrial-protection standards. Oral micronized progesterone (Prometrium) and vaginal progesterone remain the standard.
Do compounded progesterone patches work?
Compounding pharmacies sometimes make progesterone creams and patches, but blood levels are unpredictable and NAMS 2022 explicitly cautions that compounded transdermal progesterone has not been shown to reliably protect the uterine lining. If you have a uterus, this is a safety issue.
What is the closest thing to a progesterone patch?
A combined estrogen + progestin patch — CombiPatch (estradiol + norethindrone acetate) or Climara Pro (estradiol + levonorgestrel). These are FDA-approved for endometrial protection with weekly or twice-weekly dosing.
Is a combined estrogen-progestin patch as good as separate estradiol + oral progesterone?
For symptom control and endometrial protection, both regimens work. Many menopause specialists still prefer separate estradiol (patch or gel) + bedtime micronized progesterone because of the favorable breast and cardiovascular data on bioidentical progesterone. Combined patches are a strong option for patients who want a single once/twice-weekly application.
Can I use a progesterone cream instead of a patch?
Over-the-counter progesterone creams are not standardized and are not adequate for endometrial protection if you are taking systemic estrogen and have a uterus. Prescription-only options are safer.
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Medically reviewed by Kindr Health Clinical Team · Last reviewed 2026-06-19. Compounded medications are prepared by FDA-registered 503A pharmacies and are not FDA-approved drug products.