Why do some everyday product labels communicate so much better than others?

I was grabbing stuff at the grocery store yesterday and noticed how differently two competing olive oil bottles felt just from their labels. One used a clean serif typeface, a restrained color palette, and generous white space. The other crammed in certifications, flavor descriptors, and countryoforigin badges until it looked like a ransom note. Both products are apparently high quality, but one made me trust it instantly and the other made me work too hard. It got me thinking about how much invisible desig