Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.
Safety signals
Exceeds upper intake limit — curcumin
1000.0 mg per serving exceeds the tolerable upper intake level of 210.0 mg/day. EFSA Acceptable Daily Intake (ADI) is 3 mg/kg bw/day (≈210 mg/day for a 70 kg adult); FDA GRAS notifications support up to 1,000 mg/day, and short-term trials have used 8-12 g/day safely for up to 3 months.
Read moreLiver safety signal — curcumin
Cases of drug-induced liver injury associated with curcumin/turmeric supplements have been reported. Most involved formulations with enhanced bioavailability (phytosome, nanoparticles) or doses above 1,000 mg/day. EFSA set an ADI of 3 mg/kg bw/day (≈210 mg/day for 70 kg). Doses up to 1,000 mg/day of standard extracts have been generally tolerated in trials.
Read moreDrug interaction risk — curcumin
Inhibits CYP2C9 and CYP3A4 (moderate effects on CYP2B6, CYP1A2, CYP2D6). Interacts with warfarin and other vitamin K antagonists (elevated INR reported), NSAIDs, antiplatelet agents, antihyperlipidemics, and reduces iron absorption via chelation.
Read more
Safety flag
curcumin dose 1000 mg exceeds UL (210 mg); curcumin: CYP3A4 interactions
Dose or interaction risk detected. See ingredient page for details.
No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
No third-party testing
Independent lab verification not disclosed
The brand does not publish evidence of independent batch testing.
Buyer complaints
Trustpilot: occasional order issues; Amazon: bitter taste
Recurring themes from consumer review platforms.