x Dr. Stacy Sims

x Dr. Stacy Sims
Revolutionizing exercise nutrition and performance for women.
Use code SIMS and save up to 35% at checkout.

Dr. Stacy Sims
The Women's Three™

The Women’s Three is a daily health system comprised of Iron+, Calcium, and Vitamin D3 2000IU and developed in collaboration with renowned expert Dr. Stacy Sims specifically for female biology—with a targeted AM/PM dosing protocol to maximize absorption in supporting daily energy, maintaining strong, healthy bones, and promoting long-term resilience. LIMITED TIME ONLY: NEVER MISS A DAY Use our travel case—free with your first TW3 order—to support your routine anywhere and everywhere.
The Momentous Standard
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Rooted in science.
Driven by the latest in human performance research.
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Rigorous testing.
Tested at the standards of professional sports and the Olympics.
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We push ourselves so you can push yourself.
We are scientists, we are athletes, we are parents, we are people—just like you—working to bring our best to our every day. Our products are the result of our work with some of the brightest minds in human performance using the latest research. We use the highest-quality ingredients, and every single product is rigorously tested by independent third parties to ensure we deliver on our promise to bring you the best.
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The best in the field
We have built the most dynamic and advanced network of experts in the field of human performance.
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The best ingredients
Our sourcing partners are held to the highest standards ensuring our products use safe, effective, and reliable ingredients.
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The latest science
Our strategic partnerships allow us to stay at the leading edge of human performance.
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Third party certification
We work with NSF and Informed Sport to independently certify the quality and integrity of our products.