K18 Discount Codes & Coupons in November 2026
The best selection of K18 coupon codes, picked by our editors


K18 Hair sells repair-focused hair care products online.
For order help, contact K18 Hair at [email protected] or fill out the form on their Contact Us page. You can also call them at 844-564-0384. Their team is available Monday to Friday, 9 a.m. to 5 p.m. PT.
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Worked 8 days ago
15% off storewide with the promo code at checkout. Excludes gift cards and subscription auto-ship orders. Cannot be combined with other promo codes.
Get 10% off any order, including hair care products, shampoos, conditioners, and treatments. Use the coupon code during checkout to redeem this offer. Cannot be combined with other coupon codes or discounts. Availability and exclusions may vary.
Valid on eligible K18 subscription (Subscribe & Save) orders only; you must select the subscription option at checkout. Discounts apply to the subscription item subtotal only; taxes and shipping are excluded. Tier benefits apply in order to recurring subscription shipments tied to the same account. K18 may change or end the subscription terms/offer at any time.
Share your K18 referral link and friends get $10 off a first purchase of $50 or more, calculated on the merchandise subtotal before taxes and shipping. Once they buy, you receive $10 off your next order; new customers only.
Head on over to the website, add in your items, and enjoy free shipping with your purchases. A minimum $50 spend is required before taxes. Eligible for sitewide products.
Once your cart reaches $50, free standard shipping applies automatically, excluding taxes and fees. Open to new and existing customers and may be combined with eligible codes. The retailer may modify or cancel this offer anytime.
Explore 10% off sitewide as part of this promotional offer from K18 Hair, featuring hair care products, treatments, masks and professional beauty solutions. Enter the coupon code provided during checkout on the website to apply the discount.
Keep your hair care routine on autopilot for less: enjoy 15% off subscription orders at K18. This offer applies to qualifying hair care subscription items designed to maintain and repair hair health over time. Subscribers must use the provided code at checkout to receive the discount on qualifying orders. The offer may not be combined with other promotions or applied to taxes, shipping charges, or excluded items, and availability is subject to product selection, inventory, and promotional terms. K18 may modify or end this promotion at its discretion.
Follow these steps:
Add any products to your bag.
Click the shopping bag icon to start checking out.
On the order summary page, look for the field with the "Discount code or gift card" text.
Paste or type your discount code in the field and click "Apply."
The savings should now appear on your order total.
Note that if it says to "Enter a valid discount code or gift card," this could mean that your code has already expired. Check the terms and conditions of the code to confirm that it's still valid.