What percentage of the curcumin is bioavailable?

Meriva products are standardized to 20% of active curcuminoids. Thorne Research standardizes these products to ensure consistent amounts of therapeutic levels of the active constituents. Companies that do not use standardization in manufacturing cannot guarantee the amount of active ingredients within their product. Eventual absorption varies from individual to individual. Studies done on Meriva suggest that it is one of the most, if not the most, bioavailable/absorbable forms of curcumin on the market.

Is this brand third party tested?

Yes, in early 2015 Thorne Research received two prestigious certifications from NSF International: the Good Manufacturing Practices (GMP) certification and the NSF Certified for Sport® certification. You can learn more about their quality processes here: https://www.thorne.com/quality

Doesn't curcumin need black pepper (bioprenene) for bioavailability? How does the sunflower make it bioavailable?

Fwiw: bioprenene broadly increases bioavailability, and is advised against by some doctors It appears to increase intestinal absorption of endotoxins, which work against the purported clinical effect of curcumin. "Even small amounts of pepper will markedly alter a D-xylose absorption test, indicating intestinal leakage.“Bioperine” is added to many poorly absorbable phytonutrients such as curcumin to increase absorption." https://www.ncbi.nlm.nih.gov/pubmed/29908580 Full paper is here: https://www.docdroid.net/6XqVL6t/ely2018-linkss1.pd

what is the difference between the Meriva-500 and Meriva?

The sustained release Meriva contains a lower dosage of the active ingredient (Curcumin Phytosome) than the Meriva-500. Sustained release has 500 mg per serving in a sustained release formula, and the Meriva-500 has 1 gram per serving.

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THORNE Curcumin Phytosome 500 mg (Meriva) - Sustained Release, Clinically Studied - Supports Healthy Inflammatory Response in Joints, Muscles, GI Tract, Liver, Brain & Nerves* - 60 Servings

Product ID: 276333011

Details

Brand
THORNE
Item form
Capsule
Item package quantity
1
Manufacturer
Thorne
Package information
Bottle

⚡29x better absorption

💊500 mg potent dose

🧪Clinically studied Meriva

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$108.34

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Description

🔥 Elevate your wellness game with clinically proven Curcumin power!

CLEAN CERTIFIED - Third-party tested for purity and potency—no hidden contaminants, just pure wellness.
TRUSTED BY CHAMPIONS - Preferred by 100+ pro sports teams and top healthcare practitioners nationwide.
UNLOCK PEAK MOBILITY - Eases joint stiffness and shields muscles from exercise stress for all-day flexibility.
ABSORPTION GAME CHANGER - Powered by Meriva curcumin with 29x greater bioavailability than standard formulas.
WHOLE BODY INFLAMMATION DEFENSE - Supports healthy inflammatory response across joints, muscles, brain, liver, and nerves.

THORNE Curcumin Phytosome 500 mg delivers a sustained-release, clinically studied formula using Meriva for 29-times better absorption. Designed to support healthy inflammatory responses in joints, muscles, brain, liver, and nerves, it’s trusted by professional athletes and healthcare experts alike. Each bottle offers 60 servings of a clean, third-party certified supplement that promotes muscle mobility and whole-body wellness.

Specifications

ASIN	B01D8V0962
ASIN	B01D8V0962
Age Range Description	Adult
Allergen Information	Peanut Free
Best Sellers Rank	#544 in Health ( See Top 100 in Health ) #2 in Curcumin Herbal Supplements #7 in Antioxidant Supplements
Brand Name	THORNE
Container Type	Bottle
Country of Publication	USA
Country of origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (2,036)
Customer reviews	4.6 4.6 out of 5 stars (2,036)
Diet Type	Gluten Free
Dosage Form	Capsule
Flavor	orange
Is Discontinued By Manufacturer	No
Is Product Expirable	Yes
Item Form	Capsule
Item Weight	500 Milligrams
Item model number	SF815
Manufacturer	Thorne Research
Manufacturer	Thorne Research
Number of Items	1
Package Quantity	1
Product Dimensions	6.05 x 6.05 x 10.74 cm; 0.5 g
Recommended Uses For Product	Liver,Muscle Soreness
Special Ingredients	Antioxidant
UPC	693749004844
Unit Count	120.0 Count

Reviews

L**R

Works for me.

11.11.2025

P**C

Me gusta la efectividad del producto. Y es. fácil de tomar.

26.06.2021

F**M

This is a high-quality curcumin supplement that’s easy to take and gentle on the stomach. The phytosome form helps with absorption, which makes a noticeable difference compared to standard turmeric supplements. I’ve found it helpful for overall joint comfort and inflammation support without any harsh side effects. It is a bit pricier than some others, but the quality makes it worth it. Overall, a reliable and effective supplement.

12.04.2026

J**A

A must supplement if you have an autoimmune disease.

2.12.2025

F**K

Hat bei mir leider nicht gewirkt

12.07.2025

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