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+

Ranked by pass score: the recency weighted share of each vendor’s NAD+ samples that met 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 86.1
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 84.7
3 Southern Aminos 1 of 1 passed, latest Jan 5, 2026 99.50% avg purity $0.11/mg $57 / 500 mg 75.2
4 Modern Aminos 1 of 1 passed, latest Nov 28, 2025 99.80% avg purity $0.13/mg $63 / 500 mg 74.4
5 Particle Peptides 0 of 1 passed, latest Dec 29, 2025 99.00% avg purity $0.12/mg $60 / 500 mg 45.5
6 Ion Peptides 0 of 1 passed, latest Feb 19, 2026 99.40% avg purity $0.11/mg $55 / 500 mg 43.5
7 Crush Research 0 of 1 passed, latest Mar 3, 2026 99.20% avg purity $0.13/mg $66 / 500 mg 43.0
8 Ascension Peptides 0 of 1 passed, latest May 12, 2026 99.10% avg purity $0.16/mg $81 / 500 mg 40.0

Who leads NAD+

Listed, not yet tested