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

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: 27572745

Details

Brand
THORNE
Item Form
Capsule
Item Package Quantity
1
Manufacturer
Thorne
Package Information
Bottle

⚡29x better absorption

💊500 mg potent dose

🛡️Clinically studied & certified

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VT19547

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Details

Brand
THORNE
Item Form
Capsule
Item Package Quantity
1

Description

🔥 Unlock elite inflammation defense with Thorne’s Meriva-powered Curcumin!

TRUSTED BY CHAMPIONS - Endorsed by 100+ pro sports teams and top healthcare practitioners for proven reliability.
29 X SUPERIOR ABSORPTION - Experience faster, deeper benefits thanks to Meriva’s patented phytosome technology.
POWER PACKED 500 MG DOSE - Maximize your daily anti-inflammatory support with a clinically effective curcumin strength.
CLEAN CERTIFIED FORMULA - Third-party tested, GMO-free, allergen-free, and easy on your stomach for peace of mind.
WHOLE BODY INFLAMMATION DEFENSE - Supports joints, muscles, brain, liver, GI tract, and nerves for all-around vitality.

Thorne Curcumin Phytosome 500 mg delivers a clinically studied, sustained-release formula featuring Meriva for 29-times greater absorption than standard curcumin. Designed to support a healthy inflammatory response across joints, muscles, brain, liver, GI tract, and nerves, this supplement is third-party certified, allergen-free, and trusted by professional athletes and healthcare experts alike. With 60 servings per bottle, it’s your go-to for whole-body wellness and muscle mobility.

Specifications

ASIN	B01D8V0962
Age Range Description	Adult
Allergen Information	Dairy Free, Egg Free, Fish Free, Gluten Free, Peanut Free, Soy Free, Tree Nut Free
Best Sellers Rank	#7,933 in Health & Household ( See Top 100 in Health & Household ) #6 in Curcumin Herbal Supplements
Brand	THORNE
Brand Name	THORNE
Container Type	Bottle
Customer Reviews	4.7 out of 5 stars 2,146 Reviews
Dosage Form	Capsule
Is Product Expirable	Yes
Item Form	Capsule
Item Package Quantity	1
Item Weight	500 Milligrams
Legal Disclaimer	*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. <br><br>Please contact your healthcare professional immediately if you experience any unwanted side effects. The information contained herein is for informational purposes only and does not establish a doctor-patient relationship. Please be…
Manufacturer	Thorne Research
Manufacturer Part Number	SF815
Material Features	Genetically Modified Organism (GMO) Free, Gluten Free
Model Number	SF815
Number of Items	1
Package Information	Bottle
Package Quantity	1
Recommended Uses For Product	Anti-Inflammatory
Special Ingredients	Curcumin
UPC	693749004844
Unit Count	120 Count

Reviews

F**M

12.04.2026

J**E

13.04.2026

A**R

18.02.2026

S**P

21.01.2026

R**Y

27.10.2025

J**0

28.12.2025

A**N

7.03.2026

K**Y

5.03.2026

L**R

11.11.2025

P**C

26.06.2021

J**A

2.12.2025

F**K

12.07.2025

G**E

8.05.2022

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