You'll see this comparison in a lot of turmeric-containing joint supplement marketing, JointReliveX included. Here's a more careful look.
The idea is that curcumin, turmeric's active compound, reduces joint discomfort, swelling, and stiffness "as effectively as common NSAIDs" without the gastrointestinal side effects.
Curcumin has real, published research behind its anti-inflammatory mechanism (inhibiting NF-kB signaling). Some individual studies have found comparable results to certain NSAID doses in specific populations — but this is not a broad, settled scientific consensus, and results vary considerably by study design, dose, and formulation.
"As effective as NSAIDs" is a strong claim to make from a supplement marketing page. Treating it as an established fact rather than a debated, study-dependent finding oversells what the evidence actually supports.
Turmeric's anti-inflammatory properties are real and worth including in a joint formula — just don't let a marketing comparison substitute for talking to your doctor about pain management, especially for anything beyond mild, everyday stiffness.