After receiving a teeth whitening quote of £300 from my dentist, I promptly returned home and embarked on a quest for the most highly recommended at-home solutions. MySweetSmile emerged as a recurring favourite during my research, lauded for its dentist-approved formulas and effective results - and now, it's up for grabs at a discounted price, but only until the end of the day. As part of Amazon's Spring Sale, MySweetSmile is extending 30% off its award-winning teeth whitening and oral care