Progesterone Cream

Medically reviewed by Prof. Giorgi Pkhakadze, MD, MPH, PhD — GMJ Editorial Board

What is Progesterone Cream?

Progesterone cream is a topical hormone preparation containing bioidentical progesterone, a steroid hormone naturally produced by the ovaries, adrenal glands, and placenta during pregnancy. These creams are designed for transdermal absorption, allowing progesterone to enter the bloodstream through the skin. Bioidentical progesterone has the same molecular structure as the hormone produced naturally in the human body, distinguishing it from synthetic progestins used in conventional hormone replacement therapy.

Available both by prescription and over-the-counter, progesterone creams are primarily marketed for managing menopausal symptoms, premenstrual syndrome (PMS), and hormonal imbalances. The concentration of progesterone varies significantly between products, with prescription formulations typically containing higher, standardized amounts compared to over-the-counter versions.

Health benefits & uses

Menopausal symptom relief (Moderate evidence): Clinical studies suggest progesterone cream may help reduce hot flashes, night sweats, and sleep disturbances associated with menopause. However, evidence is less robust compared to traditional hormone replacement therapy.

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Premenstrual syndrome management (Limited evidence): Some women report improvements in PMS symptoms including mood swings, breast tenderness, and bloating when using progesterone cream during the luteal phase of their menstrual cycle. Controlled trials show mixed results.

Bone health support (Limited evidence): Preliminary research indicates progesterone may play a role in bone formation, potentially complementing estrogen’s bone-protective effects. However, definitive evidence for progesterone cream’s impact on bone density remains insufficient.

Sleep quality improvement (Limited evidence): Progesterone has mild sedative properties and may improve sleep quality in some individuals, particularly postmenopausal women experiencing sleep disturbances.

How it works

Progesterone cream works by delivering bioidentical progesterone through the skin into systemic circulation. Once absorbed, progesterone binds to progesterone receptors throughout the body, including in the brain, breast tissue, bones, and reproductive organs. This binding triggers various physiological responses, including regulation of the menstrual cycle, modulation of neurotransmitter activity, and interaction with other hormone systems.

Transdermal delivery bypasses first-pass liver metabolism, potentially providing more consistent hormone levels compared to oral administration. However, absorption rates can vary significantly based on application site, skin thickness, and individual factors affecting skin permeability.

Dosage

Dosage recommendations vary considerably depending on the specific product and intended use. Over-the-counter creams typically contain 20-40 mg of progesterone per pump or measured dose, while prescription formulations may contain higher concentrations.

General guidelines:

• Menopausal symptoms: 20-40 mg daily, applied to rotating skin sites
• PMS management: 15-30 mg daily during the luteal phase (days 12-26 of cycle)
• Application sites: Inner arms, thighs, abdomen, or chest (rotate locations)

No established RDA or UL exists for progesterone supplementation. Healthcare provider guidance is essential for determining appropriate dosing, timing, and duration of use, particularly given the potential for hormonal imbalances with inappropriate dosing.

Food sources

Progesterone cannot be obtained directly from food sources, as it is a hormone produced endogenously by the human body. However, certain foods contain compounds that may support natural progesterone production:

• Foods rich in vitamin B6: chickpeas, tuna, salmon, chicken breast
• Zinc-containing foods: oysters, beef, pumpkin seeds, cashews
• Magnesium sources: dark leafy greens, nuts, seeds, whole grains
• Healthy fats: avocados, olive oil, nuts, which support overall hormone production

Wild yam and soy are sometimes marketed as “natural progesterone” sources, but these plants contain precursor compounds that cannot be converted to progesterone by the human body.

Safety & side effects

Progesterone cream is generally well-tolerated when used appropriately, but potential side effects may include:

Common side effects:

• Skin irritation at application sites
• Breast tenderness
• Drowsiness or fatigue
• Mood changes
• Irregular menstrual bleeding

Serious considerations:

• May increase risk of blood clots when combined with estrogen
• Potential impact on breast cancer risk (conflicting evidence)
• Possible interference with natural hormone production
• Risk of hormonal imbalance with inappropriate dosing

Interactions

Drug interactions:

• Anticoagulants: May increase bleeding risk
• Diabetes medications: Progesterone may affect blood sugar levels
• Sedatives: May enhance drowsiness effects
• Thyroid medications: May require monitoring and dose adjustments

Supplement interactions:

• Other hormonal supplements: Risk of additive effects
• St. John’s wort: May affect hormone metabolism
• Evening primrose oil: May have synergistic hormonal effects

Who should be cautious

Certain individuals should exercise particular caution or avoid progesterone cream entirely:

• Women with a history of breast, ovarian, or endometrial cancer
• Individuals with active liver disease
• Those with a history of blood clots or stroke
• Pregnant or breastfeeding women
• People with undiagnosed vaginal bleeding
• Individuals with severe kidney disease
• Those taking multiple medications affecting hormone levels

Frequently asked questions

How long does it take for progesterone cream to work?

Individual responses vary, but some women may notice effects within a few days to weeks of consistent use. Hormonal changes typically require 2-3 months of regular use to establish stable patterns and assess full effectiveness.

Can progesterone cream cause weight gain?

Weight gain is not a commonly reported side effect of progesterone cream specifically. However, hormonal changes can affect metabolism and water retention. Any significant weight changes should be discussed with a healthcare provider.

Is bioidentical progesterone safer than synthetic progestins?

While bioidentical progesterone has the same molecular structure as natural progesterone, “natural” doesn’t automatically mean safer. Both forms can have side effects and require medical supervision for appropriate use.

Can men use progesterone cream?

Men naturally produce small amounts of progesterone, but supplementation is rarely recommended and should only be considered under strict medical supervision, as it may interfere with testosterone and other male hormones.

Should progesterone cream be used with estrogen?

Women with an intact uterus who use estrogen typically need progesterone to protect against endometrial hyperplasia. However, the specific combination and dosing should always be determined by a healthcare provider based on individual needs and risk factors.