Douglas Laboratories
PQQ Plus

30 vegetarian capsules

Price: $85.20
Cost per day: $2.84

Pure Encapsulations
SR-CoQ10 with PQQ

60 capsules

Price: $90.20
Cost per day: $3.01

Pure Encapsulations
Ultra B-Complex with PQQ

60 capsules

Price: $90.40
Cost per day: $1.51