“Crest white strips work well... the only thing that will whiten your teeth with any significance is a peroxide.” Reddit · r/beauty · 1 year ago
Contains hydrogen peroxide (10% or 15% strengths) plus potassium nitrate and fluoride to reduce sensitivity. best teeth whitener
Perfect for on-the-go touch-ups, this pen uses a 9% hydrogen peroxide formula that dissolves on its own after application. Consumer & Professional Insights “Crest white strips work well