Hello Tanya, it is always disappointing when a product doesn’t meet a customer's expectations.
Unfortunately, in some cases, like your Husbands', some formulas may require longer timeframes to show positive results. Adding Nootropic Greens for cases of fatigue can greatly improve the results.
Sonja - Naturopath
“I'm being taking NMN for a while now, and I can sense an improvement in terms of mental clarity. Can't swear that is based on NMN alone, but the product seems to help.”