For prescribers managing menopause, perimenopause, and hormone balance in women, compounding offers a way to tailor a preparation when a commercially available product doesn't fit a patient's needs. Mixwell Compounding Pharmacy in Chino, CA prepares custom women's hormone formulations — in oral, transdermal, and vaginal forms — pursuant to a valid prescription, using advanced PCCA base technology.
🌸 When Compounding Fits
FDA-approved hormone therapy products are available and are appropriate for many patients. Compounding is an option a prescriber may consider when a commercially available product doesn't meet a specific need — for example, an allergy or sensitivity to an ingredient in a manufactured product, or a strength or dosage form that isn't commercially made.
In those situations, a compounded preparation lets the prescriber specify the hormones, strengths, ratio, and route for the individual patient. Mixwell compounds to your exact specifications.
🧬 Hormones Commonly Compounded for Women
💧 Three Routes — Transdermal Is a Frequent Preference
Compounded women's hormone preparations are generally available in oral, transdermal, and vaginal forms. The transdermal route is a frequent prescriber preference, because estrogens are fat-soluble and absorb well through the skin while the route bypasses first-pass hepatic metabolism.
🧪 Advanced PCCA Bases — Matched to the Route
The base determines how well hormones are delivered and how stable and elegant the finished preparation is. Mixwell matches each route to a purpose-built PCCA base.
💎 Route-Specific Base Selection
Lipoderm®
PCCA's flagship permeation-enhancing transdermal base — widely used and studied for delivering hormones through the skin, with an elegant feel.
PermE8™
Anhydrous permeation-enhancing gel (water activity below 0.6) supporting extended default beyond-use dates and multi-active formulations.
MucoLox™
A mucoadhesive base designed to adhere to mucosal tissue, supporting localized vaginal preparations as prescribed.
❓ What is a permeation-enhancing base?
A permeation-enhancing base is a specialized transdermal vehicle designed to help active ingredients cross the skin barrier into systemic circulation. For transdermal hormone preparations, these bases support consistent delivery of fat-soluble hormones through the skin while providing a stable, cosmetically elegant finished preparation. The prescriber may name a base or write "pharmacist's choice."
⭐ For Your Practice & Your Patients
🩺 For Prescribers
- Specify exact strengths, ratios, and hormone combinations
- Choose the route and base that fit the patient
- Request dye-, paraben-, or fragrance-conscious formulations
- An option when a commercial product doesn't fit a specific need
🌸 For Patients
- A preparation made to your prescriber's plan
- Transdermal options that avoid the first-pass liver effect
- Prepared by a licensed compounding pharmacy team
- Talk with your prescriber about what's right for you
📚 The Evidence Base
A 2025 in vitro percutaneous-absorption study published in Pharmaceutics evaluated compounded estradiol and Bi-Est formulations in permeation-enhancing bases versus a commercial estradiol transdermal gel, examining how base selection influences transdermal estrogen delivery. Foundational literature describes the hormones commonly used in compounded hormone therapy and confirms availability across oral, transdermal, and vaginal routes. Professional bodies note that FDA-approved hormone therapy products are available, and that compounded hormone preparations may be considered when a patient cannot use an approved product.
Compounded hormone therapy is prescribed and monitored by the treating clinician based on individual evaluation, symptoms, and goals. The prescriber determines the appropriate hormones, route, and formulation for each patient.
⚠️ Important regulatory information — please read
Compounded hormone preparations are not FDA-approved drug products. They are prepared pursuant to a valid, patient-specific prescription. FDA-approved hormone therapy products are available and are appropriate for many patients.
No promise of results. Under federal law, promotion of prescription drugs — including compounded drugs — must be truthful, non-misleading, and accurate. Nothing here is a claim of therapeutic outcome or a statement that a compounded preparation is safer or more effective than an FDA-approved product.
FDA recommends that patients talk with their healthcare professional about their specific circumstances before taking any medication.
🚀 How to Send a Prescription
- Specify the hormones, strengths, ratio, route, and preferred PCCA base (or "pharmacist's choice") on your prescription.
- Fax or e-prescribe to Mixwell Compounding Pharmacy in Chino, CA.
- Call (909) 378-7301 to confirm the formulation and current turnaround time.
- Your patient picks up at our Chino pharmacy, or we can deliver — we serve patients across California.
❓ Frequently Asked Questions
When would a prescriber choose compounded hormone therapy over an approved product?
FDA-approved hormone therapy products are available and appropriate for many patients. A prescriber may consider a compounded preparation when a commercial product doesn't fit a specific need — such as a sensitivity to an ingredient, or a strength or dosage form that isn't commercially manufactured. The decision is the prescriber's.
Are compounded hormones FDA-approved?
No. Compounded hormone preparations are not FDA-approved. They are prepared individually pursuant to a valid prescription. This is different from FDA-approved hormone products, which are also available.
Which PCCA base is used for transdermal hormone preparations?
Lipoderm® is PCCA's flagship permeation-enhancing transdermal base. PermE8™ is an anhydrous permeation-enhancing option, and MucoLox™ is used for localized vaginal preparations. The prescriber may specify a base or write "pharmacist's choice."
Can multiple hormones be combined in one preparation?
Yes. Estrogen, progesterone, testosterone, and DHEA can be compounded together in a single preparation as specified by the prescriber.
Should I talk to my provider first?
Yes. FDA recommends that patients talk with their healthcare professional about their specific circumstances before taking any medication, including compounded hormone preparations.
Does Mixwell accept insurance?
Mixwell does not accept insurance. Call (909) 378-7301 for current pricing.
Partner With Mixwell for Custom Women's Hormone Formulations
Mixwell Compounding Pharmacy
13788 Roswell Ave, Ste 158 · Chino, CA 91710
PCCA Member · CA Licensed · USP <795> · Non-Sterile Compounding · Delivery Across California
📞 Call (909) 378-7301References: In Vitro Percutaneous Absorption of Permeation-Enhancing Estrogen Formulations. Pharmaceutics. 2025. | Files JA, Ko MG, Pruthi S. Bioidentical Hormone Therapy. Mayo Clin Proc. | National Academies of Sciences, Engineering, and Medicine. The Clinical Utility of Compounded Bioidentical Hormone Therapy. 2020. | The Menopause Society. Position statements on hormone therapy. | Lipoderm®, PermE8™, and MucoLox™ are compounding bases from PCCA; base characteristics per manufacturer technical documentation. | Educational information for licensed prescribers; not a substitute for clinical judgment, and not a promise of results. Reviewed by Mixwell Compounding Pharmacy compounding team, Chino, CA.