B3 (Niacin) by KAL
Sold as “KAL 5 Mg Nadh Tablets, 30 Count”
NOW
NADH 10 mg, Bioenergy Ribose 200 mg
KAL
NADH (reduced B-nicotinamide adenine dinucleotide as the disodium salt) 5 mg
Source Naturals
NADH 5 mg
Swanson
NADH 20 mg
NOW Foods