Smile Science Harley Street Dual Professional Advanced Teeth Whitening Pen (Pack of 2) Upto 8 Shades Whiter 100% safe for Enamel Vegan For Sensitive Teeth Rapid Results Clinically Proven hidden 5 Inch Medium:14 quick drying 5 Inch Medium:14 With the reflexology tools For Sensitive Teeth: Non sensitive teeth whitening kit is gentle and 100% safe for enamel with zero sensitivity and discomfort Easy and Convenient On the go easy maintenance and whitening pen achieves visibly whiter results at home For Sensitive Teeth Non sensitive teeth whitening Pen is gentle and 100% safe for enamel with zero sensitivity and discomfort Read more Read more Smile Science Harley Street Teeth Whitening Pen Smile Science Harley Street Teeth Whitening Kit Smile Science Harley Street Teeth Whitening Strips Smile Science Harley Street Teeth Whitening Treatment & Aftercare Smile Science Harley Street Vita White Teeth Whitening Toothpaste Stain Removal ✓ ✓ ✓ ✓ ✓ Teeth Whitened Up To 8 Up To 8 Up To 6 Up To 8 Up To 3 Course Length (Days) Ongoing 10 14 10 Ongoing Vegan ✓ ✓ ✓ ✓ ✓ Cruelty Free ✓ ✓ ✓ ✓ ✓