I haven’t seen p/p to list a concentration before. 0.15% w/v means that there is 0.15 grams/100ml of toothpaste.

Airlines know that business travelers stay shorter and spend more. At the same time, they want to compete with leisure…

It indicates you are a business traveller instead of a vacationer. If you are spending 20 hours in the air…

Fluoride is the active ingredient, but fluoride is normally with something else bound onto it as a chemical compound. Toothpaste…

If you search for sodium monofluorophosphate, you’ll find it’s not fluoride. It’s a different chemical. It does things for dental…

Sodium fluoride delivers fluoride ions more directly, and since the second toothpaste has a higher fluoride concentration, it may offer…

Bugs lack lungs and hemoglobin. Hemoglobin is what transports/carries oxygen to cells and it’s also why our blood is red…

The airlines do a ton of research into how to make the most money in airfares and fees for each…

Others have noted the oxygen and weight issues. There are also places where things with common ancestors to bugs can…

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