Science Backed: Clinically shown to be effective in maintaining a healthy balance of gastrointestinal and vaginal flora*
GI Support: Promotes optimal functioning of the GI tract and is vital to the absorption of nutrients, the elimination of waste, and proper immune function*
Women’s Health: In women's health, the relationship of a healthy balance of gut flora has benefits for healthy vaginal flora*
GI Balance: Undecylenic Acid helps maintain a healthy balance of flora in the GI tract that can be out of balance due to an unhealthy diet, inadequate digestive enzymes, oral contraceptive use, or taking prescription and OTC drugs*
Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)
Egg Free, Fish Free, Gluten Free, Lactose Free, No Artificial Colors, No Artificial Flavors, No Artificial Preservatives, Nut Free, Yeast Free
Allergen Information
Dairy Free, Fish Free, Shellfish Free, Soy Free
Color
Pale Yellow
Container
Bottle
Number Of Items
1
The video showcases the product in use.The video guides you through product setup.The video shows the product being unpacked.
Note: It may take up to 48 hours for our service t
What makes Thorne supplements high quality?
Thorne produces high-quality supplements through rigorous testing, well-researched ingredient sourcing, and strict manufacturing standards. We avoid unnecessary additives, binders, and fillers that may interfere with nutrient absorption.
How does Thorne test its supplements for quality?
To confirm the purity of our ingredients, the potency of our formulas, and the absence of all contaminants, we carry out a minimum of four rounds of testing on every product we manufacture. 100+ Thorne employees are dedicated to ensuring quality.
Are Thorne supplements clinically tested and safe?
Thorne partners with researchers and conducts clinical trials to support the efficacy of our products. Our team of doctors and medical experts substantiate each ingredient in every formula based on extensive clinical research and medical literature.
Why are Thorne products more expensive than other supplements?
When it comes to the health of our customers, we never settle. Thorne products may be priced higher than some others because of our commitment to quality at every step. We don’t simply meet the standard in dietary supplements — we set the standard.
Where are Thorne supplements made and where are the ingredients sourced from?
Located in South Carolina, Thorne manufactures supplements in the USA using globally sourced ingredients. When it comes to ingredient sourcing, we seek out only the highest-quality ingredients, selecting each one for its purity and effectiveness.