Crest Whitening Strips, particularly the Gentle Routine version that can be purchased from The White Smiles, are an accessible at-home whitening alternative. Sensitive teeth were considered while designing these strips, and the enamel-safe formula penetrates to gently removes years of stains from coffee, wine, smoking, and aging. The active ingredient, hydrogen peroxide, whitens from beneath the enamel and is gentle. Follow this link https://intgez.com/post/190129