this post was submitted on 29 Jun 2024
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For me it is when companies/services market themselves as donating to XYZ cause if I buy their product. If they want to donate, they should have already done that with the money they have. Asking me to give them profit so that they can donate is so obviously pretentious.

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[โ€“] [email protected] 7 points 5 months ago

PSA whitening toothpastes are just normal toothpastes with added abrasives. So they temporary whiten your teeth because you've removed the outer most enamel which gives your teeth its hardness. At the mere cost of tooth sensitivity and future staining, the deeper dentine layer is much softer and porous which is easily damaged by acidic foods but also more easily stained due to the porosity. So congratulations your teeth are now more stained.