Yes, Nexium (heart-burn medication) is just an example. When I sent the Nexium back to Amazon and wrote an honest review, the drug's manufacturer responded with a phone number that I should call (I did not bother).
What they did not do was unequivocally state that ALL Nexium sold ANYWHERE is of the same quality. Meanwhile, many customers agreed with my Amazon product review:
https://www.amazon.com/product-revi...r&reviewerType=all_reviews#reviews-filter-bar
My point is that Amazon and stores like Home Depot have been known to act as clearing houses for products that may be less than first quality. If a pharmaceutical company is willing to sell crap (fake medicine that actually causes unnecessary human suffering) under its brand, I'm sure others might do the same.
I'm in no way stating that Notch does any of this, and I give them the benefit of the doubt. But I must wonder why anyone would sell their $50 products for $35 elsewhere (while giving Amazon a percentage of their profits to boot)? It would be great to understand why vendor/manufacturers might choose to do that.