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 Bi-EST 5.0 is a professional-strength topical cream delivering 5 mg of bioidentical estrogen per pump—composed of 4 mg estriol (E3) and 1 mg estradiol (E2). It’s formulated for maximum transdermal absorption.

Estriol is considered a “weaker” estrogen but has been studied for beneficial effects on skin, urogenital tissue, and bone. Estradiol is the primary estrogen produced by the ovaries and plays a major role in regulating menstrual cycles, bone density, mood, and cardiovascular health.

Many women are drawn to bioidentical-inspired beauty products as a modern innovation in cosmetic science and skincare. This lotion is designed to help support outer beauty and enhance the look of youthful, radiant skin.

Because the formula includes bioidentical-inspired ingredients, please use with care and avoid this product if you have concerns about or have been advised against using products that may introduce systemic hormones into your body.

The Bi-EST blend is often used because:

• Estriol (E3) binds weakly to estrogen receptors and may act as a “gentle” estrogen with tissue-specific effects.
  
• Estradiol (E2) is the most potent estrogen and is crucial for bone, cardiovascular, and neurological health. The combination may provide symptom relief while potentially reducing risks associated with higher estradiol doses.

The main difference is strength per pump.

• Bi-EST 2.5 provides 2.5 mg total estrogen (2.0 mg estriol + 0.5 mg estradiol).
  
• Bi-EST 5.0 provides 5.0 mg total estrogen (4.0 mg estriol + 1.0 mg estradiol). That means Bi-EST 5.0 delivers double the estrogen dose compared to Bi-EST 2.5.

Estriol cream: Primarily tissue-specific; great for localized support like vaginal dryness or skin thinning, with minimal systemic estrogen exposure.

Bi-Est cream: Broader support; can help support hot flashes, mood, energy, skin, bone, and cardiovascular health, while still containing estriol for gentler tissue-specific benefits.

No—the strength of the cream is the same in both bottles. The 3.6 oz bottle uses a more precise pump mechanism, which allows for smaller, adjustable doses. This design is especially convenient for people who need to take half doses or slightly less, giving you more control over your daily regimen.

For optimal absorption, we recommend applying the cream after a shower, when your skin is clean and your pores are open. This helps maximize hormone delivery and effectiveness.