The Crest 3D Whitestrips Professional Effects work by applying a whitening gel to the teeth, which is designed to conform to the shape of the teeth and stay in place during the treatment. Here are the key steps and mechanisms involved:

1. Application: The whitening strips are applied to the teeth, with the gel side facing the teeth. The strips are designed to fit comfortably and securely against the teeth, ensuring the gel stays in place.
2. Whitening Gel: The whitening gel contains hydrogen peroxide, which is the active ingredient responsible for removing stains from the teeth. Hydrogen peroxide breaks down into oxygen and water, which help to lighten the color of the teeth.
3. Removal of Stains: The gel works by penetrating the tooth enamel to remove both surface stains and deeper-set stains. This process helps to restore the natural color of the teeth.
4. Convenience: The strips are designed to be worn for a specific period, typically around 30 minutes. This allows users to apply the strips at home, at their convenience, without the need for professional dental visits.
5. Effectiveness: The Crest 3D Whitestrips Professional Effects are claimed to whiten teeth by up to 12 levels after completing the full treatment regimen of 20 applications. The whitening gel is formulated to be safe for tooth enamel and does not cause permanent damage to the teeth.
   

   Dosage

   • Treatment Duration: Each strip is worn for 30 minutes per session.
   • Treatment Regimen: The kit includes 20 treatments, which should be completed to achieve the maximum whitening effect.

   Storage

   • Cool Place: The strips should be stored in a cool place to maintain their effectiveness.
   • Dry Environment: They should be kept in a dry environment to prevent damage.
   • Room Temperature: The strips can be stored at room temperature.

   Reviews

   • Availability: The kit is available for purchase in Pakistan through online retailers like Daraz.pk and Ubuy.com.pk.
   • Price: The current price in Pakistan is approximately PKR 14,500.
   • Effectiveness: The kit claims to whiten teeth by up to 12 levels after completing all 20 treatments.
   • Side Effects: Some users may experience temporary tooth sensitivity or gum irritation.
   • Consultation: It is advisable to consult with a dentist before starting any whitening treatment to ensure it is suitable for your dental health.

   Additional Information

   • Key Ingredients: The main active ingredient is hydrogen peroxide, which helps remove stains from the teeth.
   • Advanced Seal Technology: The strips use this technology to stay in place during use, allowing users to talk and drink water while whitening.