Over-the-counter vs prescription progesterone cream: what you are really buying

Wild yam creams

Wild yam contains diosgenin, a plant compound that chemists can use as a starting material to make progesterone in a laboratory. The human body cannot carry out that conversion. A cream made from wild yam extract therefore does not deliver progesterone, however it is labeled.

Some wild yam products have progesterone added, which blurs the picture further. If a label lists wild yam but no specific amount of progesterone, assume it contains none.

Store-bought progesterone creams

Other creams state that they contain USP progesterone, often at a set number of milligrams per pump or measure. Because these products are sold outside the prescription drug system, the FDA does not review their hormone content, consistency or effectiveness before sale. Independent testing has found that the actual amount can differ from the label.

These creams can contain real hormone, so they are not harmless placebos. They can affect bleeding patterns, interfere with how your clinician interprets hormone results, and give a false sense that your uterus is protected if you also use estrogen.

What a prescription cream is

A prescription progesterone cream is compounded for you by a licensed pharmacy at a strength your clinician specifies, for a defined purpose, with follow-up. That is a real step up in accountability from a store-bought product.

It is still a compounded medicine. The FDA states that compounded drugs are not FDA-approved and that it does not verify their safety, effectiveness or quality before they are marketed. A National Academies review found a lack of rigorous evidence for the safety and effectiveness of compounded bioidentical hormones, noted that doses and forms are not standardized, and recommended limiting their use to people who need a form or ingredient not available in an FDA-approved product.

The limitation every cream shares

Progesterone absorbed through the skin produces low and variable blood levels compared with oral micronized progesterone. For that reason, topical progesterone has not been shown to reliably protect the lining of the uterus from estrogen. If you have a uterus and use systemic estrogen, the standard approach is an oral or other proven progestogen, not a cream.

The Menopause Society notes that women with a uterus need a progestogen alongside estrogen to protect against uterine cancer, and that custom-compounded hormones are not tested for safety or effectiveness and may contain incorrect amounts.

This is the single most important point about any progesterone cream, prescription or not.

Where a cream may have a role

• Some women use a cream for modest symptom relief when they are not taking systemic estrogen
• Women who cannot tolerate oral progesterone sometimes ask about it, but uterine protection must then come from another proven option
• Evidence for creams easing hot flashes or protecting bone is mixed and limited

Why a blood or saliva test will not settle it

Progesterone from skin creams can concentrate in some tissues and in saliva, which makes saliva and even some blood measurements hard to interpret. A high saliva result does not prove your uterus is protected. Decisions about uterine protection rely on proven regimens and on monitoring bleeding, not on hormone levels from a cream.

Reading a progesterone cream label

• Look for a stated amount of progesterone per dose, not just a herb or extract name
• Be wary of claims to balance hormones, reverse aging or prevent cancer, which are not supported by evidence
• Check for an expiry date, a batch number and contact details for the maker
• Note whether the product is sold as a cosmetic or supplement, which means it has not been reviewed as a drug
• Remember that natural does not mean safe or effective; real hormones have real effects

If you already use a cream

• Tell your clinician which product you use, how much and how often
• Mention it before any hormone testing
• If you also use estrogen, ask how your uterus is being protected
• Report any unexpected bleeding promptly
• Do not combine store-bought and prescription hormone products without guidance

Progesterone cream through HealifyMD

Progesterone cream is included in the HealifyMD hormone therapy plan when your clinician thinks it fits, which costs $349 for the first month and then $99/month, confirmed at your eligibility review. It is a compounded preparation and is not FDA-approved. If you take estrogen and have a uterus, your clinician will make sure you also have a proven form of uterine protection.