Did you get these from Lush? I’ve tried them and like them very much - but I like the Lush toothpaste jelly even more. You only need a dab on your toothbrush, and the amount that fits in one of Lush’s small sample size containers lasts for months, even brushing two or three times a day. Weighs (moderately) less than even a dentist-size sample tube of toothpaste, too.
As for the Matador refillable toothpaste tubes - to each their own, I suppose. I like a few of their products but this wouldn’t be useful to me. Their Flat Pack Soap Bar case, however, is an essential bit of kit. I was skeptical about the price, but it’s paid for itself several times over by preserving and prolonging the life of the bar soap I like traveling with without any soggy mess. (Yes, I’m aware you can use a Ziploc bag to hold a bar of soap as well. But a Ziploc bag won’t allow a bar of soap to dry in your kit right out of the shower.)
The FlatPak™ Soap Bar Case is the lightweight and leakproof way to travel with bar soap. Soap bars dry through the material, so they never get mushy.