AICAR vs NAD+
Which should you choose? Here's what you need to know.
The short answer
AICAR and NAD+ are both metabolic / longevity peptides, but they work differently. Nicotinamide Adenine Dinucleotide, a coenzyme essential for cellular energy production and DNA repair. Levels decline with age, driving longevity research interest. Compare vendor pricing and availability below.
On 19 Sep 2026 Peptide Compare tracked 8 vendors selling AICAR, cheapest in stock $0.760 per mg at Ruo Bio, and 58 selling NAD+, cheapest $0.054 per mg at Step One.
AICAR
Metabolic / LongevityNAD+
Metabolic / LongevityNicotinamide Adenine Dinucleotide, a coenzyme essential for cellular energy production and DNA repair. Levels decline with age, driving longevity research interest.
Price & availability
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 19, 2026.
AICAR
NAD+
$38.00
Starting from
$25.00
$1.18
Avg. price per mg
$0.30
8
Vendors selling it
58
4 options
In stock now
73 options
7.6/10
Top trust score
9.0/10
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Where does this data come from?
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.