Meh. I’m not really sure what is so different between these and other finishes, especially in woodworking land. I mean, whatever product you have always had to take the mfg claims with a grain of salt, read the label to figure out what’s probably in there and then most importantly try it and learn how it works. In that light Teak Oil doesn’t seem much different. I tend to like Tung oil over linseed, so I look for that in the contents.
The bigger problem, is the constant reformulations of products. What used to work, often doesn’t now. Take Behlins short oil varnishes, which are now poly based and absolute murder to get to lay down. You try to learn a mfg and a product, not because you think they walk on water, but because the same label on a different mfg is not the same thing at all.
I’ve used a lot of Daly’s teak oil. It was OEM and color matches perfectly on my boat. I’ve used it as a finish and as a sealer under varnish. Don’t care much what the label says anymore, Because through experience I just know what the product does and how it reacts with other things.
Recently I’ve started learning Waterlox for inside counter surfaces. Lays down very easily, very little sanding and has gone a year in my galley with ease. Just added it to my main head counter. I guess I’m just saying no matter what, you have to learn each product, one by one. What I know about Behlins varnish helps little with Waterlox, or Epifanes, or Daly’s.
Learn a product, use it. That’s all there is.
Look at exterior deck oils and stains, hard to find a product that works and even harder one that has not changed formulations every year. Situation normal!
Varnish, Cetol, epoxy, finishing wood isn’t for the meek.