Red Yeast Rice (formerly Choleast-900)
Scored by the Formulate Research Team · Last reviewed May 2026
Overview: Thorne Red Yeast Rice (formerly Choleast-900)
Helps maintain healthy cholesterol levels and supports cardiovascular health* Red Yeast Rice contains naturally occurring compounds, like phytosterols and isoflavones, produced on fermented rice to help maintain healthy lipid particle size and number.*
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Red Yeast Rice | 900 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Leucine
Recommended Use
Take as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. Red Yeast Rice contains an ingredient derived from soy. PREGNANCY WARNING If pregnant, nursing, or trying to conceive, do not use this product. INTERACTIONS There are no known adverse interactions or contraindications at publication date. ADDITIONAL WARNINGS Adverse events
Frequently Asked Questions
What is Thorne Red Yeast Rice (formerly Choleast-900)'s Formulate score?
Thorne Red Yeast Rice (formerly Choleast-900) scores 87 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
Is Thorne Red Yeast Rice (formerly Choleast-900) worth it?
Thorne Red Yeast Rice (formerly Choleast-900) scores 87/100 (grade A). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Thorne Red Yeast Rice (formerly Choleast-900)?
Each serving contains Red Yeast Rice (900 mg). Serving size: 1 Capsule. 120 servings per container.
How do I take red yeast rice (formerly choleast-900)?
Take as recommended by your health-care practitioner.
Who makes Red Yeast Rice (formerly Choleast-900)?
Red Yeast Rice (formerly Choleast-900) is made by Thorne. See Formulate's full grade and product lineup for Thorne on its brand page.
Is Thorne Red Yeast Rice (formerly Choleast-900) third-party tested?
Thorne lists the following certifications and testing for this product: NSF Certified, GMP Certified, Gluten Free, Dairy Free, Thorne Verified, Natural Flavors, Natural Colors.
Related Supplements
Track red yeast rice (formerly choleast-900) in your stack
Build a personalized supplement stack free in your browser — no install. Flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.