This 3-Pack of Whitening Lightning Super Booster Teeth Whitening Pens, which retails for $237 is $23.99 at Tanga. Plus use exclusive code BRADSDEALS to shave off another $4. This is the lowest price we could find on these pens by $25 - we found them elsewhere for $15 each. The pens can whiten teeth 7-10 shades in up to 14 days when they are used daily, plus they can be used while you sleep. Shipping adds 2.99 and sales tax is not charged in most states.