What’s inside this formula?
Thorne’s Red Yeast Rice 900 mg (Choleast-900) is listed here in the red yeast rice collection. This article looks at the selected 120 capsules pack, then puts its ingredients into context.
Each capsule contains 900 mg red yeast rice. Monacolin K is not quantified on the reviewed label; the rice amount cannot establish a cholesterol-lowering dose.
Check the original label ↗Some red yeast rice contains monacolin K, the same substance as lovastatin. Labelled rice milligrams do not disclose its amount.
The pack details above come from the manufacturer. Ingredient research below does not establish the effects of this exact product or independently verify its contents.
Old artwork, same declared ingredient
The credited physical bottle uses the Choleast-900 name. Its 900 mg red-yeast-rice declaration and excipients match the current official Red Yeast Rice page at the same product URL.
Rice weight is not monacolin content
Monacolin K can vary widely among red-yeast-rice products. This label does not quantify it, so 900 mg of rice cannot be equated with a known statin dose or a predictable lipid effect.
Use the safety evidence
NCCIH describes statin-like adverse effects and possible citrinin contamination for this ingredient class. These concerns do not prove contamination in this bottle, but they rule out calling it an automatically safer substitute for prescribed medicine.
Where might it be useful?
Interpret cholesterol claims cautiously
Products with little or no monacolin K have uncertain effectiveness. Concentrations can differ markedly between products.
What the research can — and cannot — tell us
A declared red yeast rice amount is not a reliable measure of a cholesterol-lowering dose or proof of batch purity.
What deserves your attention?
Contains a soy-derived ingredient. Avoid during pregnancy/nursing or while trying to conceive. Red yeast rice can have statin-like interactions and muscle, liver or kidney risks; do not combine with statins without prescriber review.
Suitability comes before strength
Potential effects include statin-like drug interactions and muscle, liver or kidney injury. Citrinin contamination is another concern. Avoid during pregnancy or breastfeeding and seek prescriber review before use with cholesterol medicines.
Dietary details for this product
Dietary status not confirmed The full label lists red yeast rice, cellulose capsule and leucine, but leucine sourcing and whole-formula vegan status are not explicitly confirmed.
A dietary label and an allergy assessment answer different questions. Check every ingredient, the capsule or softgel materials and the allergen statement on the pack you receive. If you take medicines, have a health condition, are pregnant or are choosing for a child, discuss the full formula with a qualified clinician.
Make the comparison meaningful.
- Match the exact version.Look for Thorne · Red Yeast Rice 900 mg (Choleast-900) and the 120 capsules pack. A similar name or bottle can contain a different strength, blend or serving.
- Compare like with like.Read the serving size alongside the active ingredient amount. Capsule count, compound weight and total blend weight can describe different things. Use the label notes above to see what matters for this formula.
- Check the seller and final cost.Review seller identity, expiry, batch details and any Indian import information. Compare the final delivered price only after matching the formula. Prices and stock are checked on the retailer’s site.
Keep the label beside the decision.
Open the complete product profile for its source, dietary notes and available shopping destination.
Is this an endorsement or a medical recommendation?
No. This is an editorial guide to a selected product and its ingredient context. We have not independently tested this bottle or established a clinical benefit for this exact formula. A product’s inclusion is not a recommendation that everyone should take it.
Does Proof & Price earn from shopping links?
Some product-profile links are paid links and are labelled. As an Amazon Associate we earn from qualifying purchases. Manufacturer source links are provided for checking the label. Read our affiliate disclosure.
Read, check, decide.
Product label reviewed 2026-10-29. Ingredient context reviewed 2026-10-29. This article has not received independent clinical review. Packaging and formulas can change; the current pack takes precedence.
↗