French Regenerate, Crest transparent toothpaste. The transparent toothpaste is transparent, high-grade, very gentle and non-irritating when entering the mouth. It is produced by the French brand Regenerate. The French REGENERATE toothpaste claims to be the only toothpaste in the world that can repair tooth enamel. It has been developed after 9 years of research and development. , and also obtained 5 international patents including NR-5. Crest clear toothpaste is Crest. The paste of Crest toothpaste is transparent and has a slight fragrance in your mouth after brushing.