NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor, Amino Acid, 120 Tablets vs Puritan's Pride L-arginine 1000 Mg Capsules, 100 Count, White, (4332490165)

We couldn't find enough data on either option to be able to come to any reliable conclusions. We strongly suggest that you look at some alternatives that also cost around $8.

The NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor, Amino Acid, 120 Tablets hasn't managed to get enough recognition from sources that do high-quality hands-on testing and therefore didn't make it into any relevant roundups. That, by itself, makes it difficult to recommend.

Taking a look at the Puritan's Pride L-arginine 1000 Mg Capsules, 100 Count, White, (4332490165), we found that it hasn't managed to perform well enough to earn a spot in any L-arginine Supplement roundups done by sources that conduct their own, high-quality, hands-on testing. That alone makes it difficult to recommend.

As a last step, we wanted to do a head-to-head NOW Supplements, L-Arginine 1,000 mg, Nitric Oxide Precursor, Amino Acid, 120 Tablets vs. Puritan's Pride L-arginine 1000 Mg Capsules, 100 Count, White, (4332490165) comparison of their review performance but, unfortunately, weren't able to find any review ratings on either product.