From an end-user perspective it's often very hard or impossible to detect spoofed SMS. This all depends on the configuration done by the various operators. As John mentioned, you might be able to tell it from the message-centre (SMSC addr), but again this is eg.
To choose the whitening toothpaste thatâs best for you, you should first know what whitening toothpaste actually is. This post about teeth whitening reviews the basics of âhow to get your teeth whiteâ and tips keep them white.
And yes, fluoride is the main reason we do not use human toothpaste. Fluoride is good for teeth, but bad if you ingest in large amount. That is also why you and me do not eat the toothpaste and we rinse our mouth after we brush our teeth.