Does Teeth Whitening Toothpaste Work?
Key Takeaways Whitening toothpaste lifts surface stains through gentle polishing. Some formulas contain small amounts of peroxide, and changes show up slowly over several weeks. Coffee, tea, and red wine create surface stains that respond better to polishing than deeper discolouration. Yellowing tied to age, certain medications, or past tooth injury may come from changes…
