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Quicksilver Scientific, BI-EST+, 1.0 fl oz/30mL

Professional Consultation Required

This is a professional-grade product. Purchase requires prior guidance from a qualified healthcare practitioner or a consultation with one of ours.

If you’ve already been advised to use this product, are currently taking it, or have worked with a practitioner before, simply log in or create an account to continue.

To schedule a consultation with our very own Dr. William Stone or Maria Tabone,
please call 1-800-622-8877 ext. 1 for assistance.


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Dr. William Stone

Dr. William Stone, DC, CHHC

Certified Nutritional Consultant
Iris Analysis Practitioner | Holistic Health Expert

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Maria Tabone

Maria Tabone, M.A., M.S., NBHWC, CFNC, AHG

Integrative Nutritionist | Functional Nutrition Coach
Ayurveda Practitioner | Herbalist

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Bi-Est+ Professional Topical Replenishing Serum is a nanoemulsified topical serum providing 1 mg of bioidentical estriol (E3) and 0.25 mg of bioidentical estradiol (E2) per 2 pump dose. The estriol and estradiol are derived from phytosterols, natural compounds used to synthesize bioidentical estrogens.

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