...the products have been there for years, and so far everything is fine, but...

With shampoo you can put the bottle on the bottom as well as on the top, why isn't that the case with the Coditioner, well it doesn't necessarily need this, the good thing about it is that no deposits can collect there. Unfortunately, this is also the case with shampoo, I don't think a bottle needs to have a base, it just needs to stand on its head. Because water also likes to collect there.
But the most important thing, if it hasn't already been mentioned here, is that when these bottles are upside down, water always, and I mean always, collects in them. We keep these products in the shower, where water also gets in. When I clean the bathroom and forget to let the water run out, I get a wet surprise. Which is always annoying.
Do you feel the same way? Are there any other products that have the same problem? With all the designs, someone should really work on it and make better closures so that no water gets in. Because after that, it gets pretty scary. The rinse is top top lid, rather not, shampoo should be reconsidered both the lid and the bottom.
Thanks for the feedback.