What it is: A pack of dissolving teeth-whitening strips that help gently whiten teeth up to seven shades in four weeks, all while you sleep.What it does: Like a nighttime mask for your teeth, these whitening strips lift stains and brighten your smile while you sleep. They're clinically proven to whiten teeth up to 7 shades when used nightly for 4 weeks. The form-fitting, no-slip grip design helps to avoid gum irritation, and the application is mess-free with no rinsing or removal required. The gentle formula is safe for sensitive teeth and contains a calming blend of lavender and chamomile to soothe gums before bed.Key ingredients:- Enamel Pro+: a natural blend of antioxidants, essential oils and gentle hydroxyapatite for enamel protection while you whiten teeth- Hydroxyapatite: a mineral known to known to protect, restore and re-mineralize enamel and protect against cavities- Lavender and chamomile: to promote relaxation before bedtimeHow to use: Dry hands prior to use. Place strip on upper teeth just below the gum line. Gently press strip onto naturally moistened teeth until sealed in placed. If strip does not adhere, continue to moisten teeth with tongue before reapplying strip with dry fingers. Fold any excess strip behind the teeth. Repeat for the lower teeth. Allow about 15 minutes for strip to dissolve. No rinsing necessary. For best results, avoid eating or drinking for 30 minutes. 56-count Paraben-free; SLS/SLES-free Cruelty-free Made in the UK