Zenni Optical occasionally offers promotional discounts or codes to customers for use when making online purchases. When these codes are available, the easiest way to access them is through the company's newsletter service, which notifies the subscriber of upcoming discount opportunities for savings.
While Zenni Optical offers promo codes to its customers, the company tends not to release them frequently as its standard pricing is already so competitive, according to the company website. When Zenni Optical releases sales or occasional promo codes, coupon websites, such as RetailMeNot.com and Coupons.com, make them available. Past discount offers included a flat shipping rate and a discount on sale items.