Skin and longevity

NAD+

Also sold as Nicotinamide adenine dinucleotide

Not a peptide, but stocked by nearly every vendor on this list. Sold in 500 mg and 1,000 mg vials, so fill accuracy carries more weight than purity in the product score.

Vendors tested: 8; of 17 listed
Samples passed: 60%; of 10 results
Median price: $0.12/mg; 500 mg vials typical

Who leads NAD+

Vendors with independent results for NAD+, ordered by overall score. The pass counts and average purity shown are for this compound only, judged against 99.5% purity, confirmed identity, and fill within 25% of the label.

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1 Atomik Labz 2 of 2 passed, latest Oct 4, 2026 Buy NAD+ at atomiklabz.com 99.71% avg purity $0.12/mg $85 / 700 mg 94.9 Overall
2 Solution Peptides 2 of 2 passed, latest Aug 14, 2026 Buy NAD+ at solutionpeptides.net 99.59% avg purity $0.12/mg $85 / 700 mg 92.4 Overall
3 Crush Research 0 of 1 passed, latest Mar 3, 2026 Buy NAD+ at crushresearch.com 99.20% avg purity $0.10/mg $49 / 500 mg 90.4 Overall
4 Ion Peptides 0 of 1 passed, latest Feb 19, 2026 Buy NAD+ at ionpeptide.com 99.40% avg purity $0.09/mg $44 / 500 mg 89.9 Overall
5 Modern Aminos 1 of 1 passed, latest Nov 28, 2025 Buy NAD+ at modernaminos.com 99.80% avg purity $0.10/mg $49 / 500 mg 86.5 Overall
6 Southern Aminos 1 of 1 passed, latest Jan 5, 2026 Buy NAD+ at southernaminos.com 99.50% avg purity $0.12/mg $60 / 500 mg 79.5 Overall
7 Ascension Peptides 0 of 1 passed, latest May 12, 2026 Buy NAD+ at ascensionpeptides.com 99.10% avg purity $0.10/mg $104 / 1000 mg 77.7 Overall
8 Particle Peptides 0 of 1 passed, latest Dec 29, 2025 99.00% avg purity n/a no listing 76.4 Overall

Who leads NAD+

Listed, not yet tested