"One and done" brands?

Is there a brand where you fell in love with a product but each subsequent try from their line fell flat for you? Two come to mind for me:

Le Prunier - the plum oil is truly fantastic, but everything I've tried after - with the exception of the body cream, which I like but wouldn't repurchase at full price; it's often on GMA Deals so I can get it there if I want in the future - has been kind of a dud. The Plumtox mask irritated my face and didn't do anything of value, the Plumscreen spf pilled horribly (but the texture and scent were divine), and the new Plumcleanse has one of the worst smells I've ever encountered, like they put their plum oil in a blender with a ton of alfalfa. It's also weirdly harsh despite being formulated to be the opposite?

Holifrog - I was really into the Tashmoo Milky Cleanser for a while but the other cleansers and the glycolic were big no's for me. Turned me off from trying anything else from the line and eventually I stopped replacing the cleanser.