In case you enter a discount code during checkout that doesn't exist or isn't currently active, then you can see the message: “Unable to find a valid discount matching the code entered”.

To use the Kiehl’s coupons on their website, you need to meet the conditions:

•  The items you choose must meet all coupon requirements as explained in the Terms and Conditions.

• The coupon has not expired. 

• The seller uses the Kiehl’s checkout system or a customized checkout system that accepts the coupon.

To avoid this problem, you should check out carefully Kiehl’s promo code before that promo code could be expired, some promo codes are tied to a minimum purchase, a first-time purchase, or tied to geography, and other reasons.

Our advice for you to use Kiehl’s Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at Kiehl’s, so take advantage of coupons released on those days to save.

The sitewide discount from Kiehl’s is applied on certain purchases. For Year-End Deals, the store may have its own requirement to offer you a sitewide discount.