What does a colored Striped Concoction do? I am just curious.

Nothing, they're just wearables ^_^

you can see what it looks like if you search it out on subetahq.com

Here's one for an example. If you hover over it, you should be able to see a preview of what it would look like on your avatar. :)

Thanks! I didn't realize it was a wearable, for some reason I thought it would do something to my pet if I used it.