
Estradiol Cypionate
RxLong-acting estradiol injection for hot flashes, night sweats, sleep and mood changes of menopause and perimenopause, and for gender-affirming hormone therapy. One injection every one to two weeks.
- The most effective treatment for hot flashes and night sweats
- Steady levels from one injection every 1–2 weeks
- Prescribed and dosed by a physician who reviews your history
- One-time purchase, 90-day supply
- Reorder when you need it
- US-licensed pharmacies
- No subscription
Starting at
$189 / mo
- Physician-guided care
- Ongoing, expert support
- 100% online
- Free, discreet shipping
Disclaimer
Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Products are compounded by a licensed pharmacy. The FDA has not reviewed or approved compounded products for any use for safety, efficacy, or quality. Compounded medications are not FDA-approved brand-name products.
What is estradiol cypionate?
(es-tra-DYE-ol SIP-ee-oh-nate)
Estradiol is the main estrogen your ovaries make before menopause. Estradiol cypionate is estradiol bound to a fatty acid so that, injected into muscle, it releases slowly over one to two weeks. It replaces the estrogen that falls at menopause, which is what drives hot flashes, night sweats, vaginal dryness, disrupted sleep and bone loss. It is also a standard option in feminizing gender-affirming hormone therapy. This is a 90-day supply bought once.
Get Startedreduction in hot-flash frequency with estrogen therapy versus placebo, in the Cochrane review of 24 randomized trials
~75%
Hormone therapy is most favorable when started before age 60 or within 10 years of menopause, in people without contraindications. Your physician reviews that with you.
How estradiol therapy works

Day 1
A US-licensed physician reviews your symptoms, history, risk factors and, when needed, labs, and sets your dose. The 90-day kit ships discreetly to your door.

Weeks 1–2
One intramuscular injection every one to two weeks. Hot flashes and night sweats usually ease within the first two to four weeks.

Month 1–2
Sleep and mood follow as levels steady. Your physician checks in and adjusts the dose or interval to your response.

Month 3
Time to reorder. Your physician reviews how you feel, any bleeding or side effects, and confirms the plan for the next 90 days.

Beyond
Hormone therapy is reviewed at least yearly: dose, benefits, risks and whether to continue. Your physician decides with you.

Results you can feel
Fewer hot flashesBetter sleepFewer hot flashes
the change estradiol is best known for
Uninterrupted sleep
as night sweats settle
Steadier mood
reported by many as levels stabilize
Bone protection
estrogen slows the bone loss of menopause
Individual results vary. Benefits reflect what Zepym Health members commonly report to their physician at check-ins; they are not the results of a clinical trial.
Tested for quality, backed by science
We only work with US-licensed pharmacies that prioritize strict quality control standards, so you can count on purity, potency, and safety.
- Pure: compounded to order with pharmaceutical-grade ingredients
- Potent: lab-tested to match the labeled dose
- Sterile: prepared to USP standards by LegitScript-certified pharmacies

Your plan, reviewed
Physician-reviewedDose set by a physician, adjusted at every check-in

Your reviewing physician
Scott Nass, MD
Board-certified family physician. Every hormone therapy plan at Zepym Health is reviewed by a licensed physician before anything is prescribed, and adjusted with you as you go.
Meet the teamWhat the research says
The science of menopausal hormone therapy
The 2022 Menopause Society position statement confirms hormone therapy as the most effective treatment for hot flashes and night sweats, with a favorable balance of benefit and risk when started under 60 or within 10 years of menopause.
Long-term follow-up of the Women's Health Initiative found no increase in all-cause mortality over 18 years among women who used hormone therapy. Your physician goes through your personal risk factors before prescribing.
Learn more
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Hormone care that starts with you
Our in-house physicians meet you where you are, and get you to where you want to be.
$189/ mo
One-time price for a 90-day supply
What's included
- Personalized, physician-guided plan
- 90-day supply, no subscription
- Dispensed by a US-licensed compounding pharmacy
- Unlimited physician messaging
- Reorder whenever you need it
- Reviewed by our in-house physicians

Personalized for you
Made for your biology
No two people age the same way, so no two treatments are exactly the same. Your plan is guided by your symptoms, your biology, and your priorities. It's a whole “you” approach to living a better, longer life.
Get StartedHow it works
Choosing how you age starts here
1Physician-led
Connect with a physician
Answer a few questions online and a US-licensed physician reviews your health, history and goals to make sure treatment is right for you. 100% online. No in-person visit required.
2Fast, discreet shipping
Get your discreet shipment
If approved, your treatment is compounded by a US-licensed, LegitScript-certified pharmacy, inspected for quality, and shipped discreetly to your door.
3100% online
Receive continuous support
Start with one goal, then keep building over time. Unlimited physician messaging, easy refills and dose adjustments, all from the Zepym Health app.
Disclaimer
The above statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Prescription products require an online evaluation with a licensed medical professional who will determine if a prescription is appropriate. Individual results vary.
Estradiol educational content reviewed by our physician

Scott Nass, MD
Doctor of Medicine, board-certified in Family Medicine
Charles R. Drew University and David Geffen School of Medicine at UCLA. Family Medicine residency at Ventura County Medical Center.
Frequently asked questions
May the source be with you.
We read the research so you don't have to. Here's what the science says.
- 1
The 2022 hormone therapy position statement of The North American Menopause Society.
Menopause, 2022 - 2
Menopausal hormone therapy and long-term all-cause and cause-specific mortality: the Women's Health Initiative randomized trials.
JAMA, 2017 - 3
Eligibility criteria for menopausal hormone therapy: a position statement from a consortium of scientific societies.
Maturitas, 2022 - 4
Oral oestrogen and combined oestrogen/progestogen therapy versus placebo for hot flushes: Cochrane review.
Cochrane Database Syst Rev, 2004
Starting at $189 / mo
Get Started
