Thorne, Curcumin Phytosome, Slow Release, 120 Capsules (250 mg per Capsule)

Please Read This First If You or a Family Member Is Undergoing Chemotherapy

This is genuinely one of the more serious interaction notes across everything we carry, and it deserves to be stated plainly before anything else: curcumin has been shown in research to potentially reduce the effectiveness of certain chemotherapy drugs, specifically cyclophosphamide (Cytoxan) and irinotecan, a chemotherapy drug used to treat colon cancer. Thorne's own product documentation states that concurrent use of curcumin with these specific agents should be avoided. If you or someone you're purchasing this for is currently undergoing chemotherapy or cancer treatment of any kind, please do not use this product without your oncologist's explicit knowledge and approval — this isn't a routine caution, it's a documented, drug-specific concern with real implications for treatment effectiveness.

With that clearly stated upfront, here's what this product is for everyone else.

The Most Clinically Studied Curcumin Absorption Technology on the Market

We now carry curcumin in several different forms, each addressing curcumin's well-known poor absorption in a different way. This Thorne product uses Meriva, a patented phytosome technology developed by Indena S.p.A., where curcumin extract is bound to phosphatidylcholine — a phospholipid derived from sunflower oil, making this formula soy-free. Phospholipids are naturally very well absorbed by the body, and by attaching curcumin to one, Meriva allows significantly more curcumin to reach the bloodstream and body tissues than standard curcumin extract alone. Thorne cites a human study showing 29 times greater absorption compared to ordinary curcumin, and Meriva has been the subject of more than 30 clinical trials — genuinely more research backing than most other curcumin delivery technologies on the market, including the other forms we carry.

This particular version adds a second layer of technology on top of Meriva: a Time-Sorb sustained-release matrix, designed to release the curcumin phytosome complex more gradually over time, rather than delivering it all at once. The intent is to maintain more consistent levels in the body across the day, rather than an initial spike followed by a decline.

How This Differs From Our Other Curcumin Options

• Our NOW Foods listings use plain, unenhanced curcumin extract
• Our Doctor's Best listing uses BioPerine (piperine), which works by inhibiting certain digestive enzymes
• Our Solgar Full Spectrum Curcumin uses NovaSOL, a micelle-based water-solubility technology
• This Thorne product uses Meriva, a phospholipid-based phytosome complex, plus sustained-release technology

Each represents a genuinely different scientific approach to the same underlying absorption problem, and Meriva specifically has the deepest body of independent clinical research behind it among these options.

Suitable for Vegetarians

The capsule is Hypromellose, a cellulose-derived vegetarian shell — not gelatin — so there's no Halal sourcing ambiguity here.

The Standard Turmeric Cautions Still Apply

Beyond the chemotherapy-specific note above, this product carries the same general cautions as any curcumin product: consult your health professional before use if pregnant, and be aware this product is contraindicated for anyone with a known hypersensitivity to any of its ingredients. As with any curcumin product, turmeric's effect on bile production is relevant for anyone with gallbladder concerns, and curcumin's studied associations with blood clotting and blood sugar are relevant for anyone on blood-thinning or diabetes medication — worth discussing with your doctor given how efficiently this particular formula delivers curcumin into your system.

Ingredient Breakdown

Vegetarian. Soy-free (curcumin phytosome uses sunflower-derived phospholipids, not soy lecithin, unlike some competing phytosome products). Third-party tested to verify label accuracy and screen for contaminants including heavy metals, pesticides, and microorganisms.