ArticleMost retail advice assumes the shopper can eventually evaluate what they bought. They wear the jacket, they taste the coffee, they run the appliance, and the product either delivers or it does not. That feedback loop is what makes reviews meaningful and what keeps quality claims honest over time.
A surprising number of categories do not work that way, and retailers in them are running a different business from the one the textbooks describe.
I founded Miracle Botanicals with my family in 2011 on the Big Island of Hawai'i, selling pure and certified organic essential oils, carrier oils and hydrosols. Essential oils are unusually easy to adulterate and unusually hard for a buyer to assess. Someone opening a bottle of frankincense cannot tell whether it has been cut with a cheaper oil, extended with a carrier, or synthesised in part. It smells like frankincense. It may perform acceptably. The customer will very likely never find out, and will leave a positive review either way.
That asymmetry has a consequence retailers in these categories need to reason about directly. Where the customer cannot verify quality, the market does not reliably reward it. Quality becomes a cost you carry voluntarily, not an advantage the market hands you, and any competitor willing to quietly reduce it takes margin you cannot match while looking identical on the shelf.