PRISTINE'S L-Arginine 1000mg Capsules

Our verdict

PRISTINE'S L-Arginine 1000mg Capsules works out to $0.11 per serving of l-arginine, at 1000mg per serving in capsule form. That puts it below the median of the 24 l-arginine products we can price per dose, where the typical serving costs $0.11, a Value Index of 1.0 where the median product is 1.0. One container lasts 180 days at the label dose of 1 serving a day, about $3.33 a month. We could not verify a third-party certification for PRISTINE'S in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.