1. Toothpaste tubes are almost impossible to recycle and are most likely to end up in landfills and/or the ocean.
2. The ingredients that traditional toothpaste is made of are, at the very least, controversial. A quick google search will show you different studies on some of them, like triclosan, for example, a chemical made to reduce bacteria. This particular ingredient was banned from some products in Europe back in 2011 but not from toothpaste. So, until proven that they cause no harm to our bodies, we’d rather stay away from it.
3. Making your own toothpaste IS CHEAPER than buying pre made tubes.