I was a listener of Dr Marshal for more than 20 years & coincidentally ended up moving to RR, TX. I was happy to know that QNL was a local business & I actually met Dr Marshall in the parking lot of the local supermarket, by chance—amazing man in all aspects. On the other hand, the QNL pricing has become excessive & coupons are rare. Nowadays, other online retailers have the same to very similar formulas for much less. Not every supplement assimilates with every individual, but the Zinc Liquid needs to be reformulated—it’s extremely metallic in taste and reaction, I can’t tolerate it whatsoever; waste of money for me. Max Energy Bs are good, but expensive—Bs need to be taken daily, so I can’t keep up with QNL Max Energy due to pricing. Also, some of the customer service, namely via online support are not friendly. Simple inquiries are answered in unfriendly, written tones & when you ask for details, the answers are blunt and unhelpful.