Stella White Teeth Whitening Strips- Brighten smiles with these strips that seek to white teeth six to eight shades in barely one totality for extended lasting pearly white. easy application and removal. Convenient to wear. Enamel-safe, tooth doctor counselled. Aim to colour teeth six to eight shades in barely one totality. Use for simply 30 minutes daily (recommended for fourteen days). Results will last for up to a few years. Pack includes -14 higher strips, 16 lower strips and guide.