CurlKit Valentine’s Day Sale: 25% Off Coupon! Last updated by Brandy on February 11, 2017. Subscription Box Coupons & Deals / CurlKit Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification CurlKit is having a Valentine’s Day sale! Save 25% on boxes including on longer-term subscriptions (find them under the membership tab)! Use promo code CUPIDCURLS. Visit CurlKit to get this offer.