Sensodyne Platinum Protect EX Sample 18g x 10 tubes Set Double Block Formula The only Sensodyne that blocks the hypersensitivity route The first Sensodyne ever to contain two types of active ingredients for hypersensitivity care. Aluminum lactate blocks the sensory route on the outside of the tooth, and potassium nitrate soothes sensitive nerves inside the tooth, preventing the discomfort and pain of tooth sensitivity. Will be shipped via Yu-Yu Mercari Bin or Kurakara Mercari Bin, with simple packaging and no bubble wrap.