120 Minutes of teeth whitening (Reg. $297) with Coupon $39 ($258) savings - This is the ultimate teeth-whitening package. 120-Minutes you can redeem in 10 or 20-minute increments and can share minutes with friends. During appointments, technicians use a cheek retractor, whitening gel (no sensitivity) and blue LED to lighten teeth from 4 to 8 shades.