The bond that lasts. HEC Hair K-Tip Extensions use a pre-bonded keratin tip fused strand by strand with a gentle heat tool, creating an individual attachment so small and flush that it blends completely into the hair. Once on, they stay — through washing, heat styling, and every move you make. 100% Russian Remy hair from root to tip: the gold standard for extensions that wear as long-term as the method itself. The keratin bond is rounded for easy concealment under the surrounding hair, and the application is done by Serena for placement that is as precise as it is discreet. Available in 7 lengths from 14" to 26" across 7 shades from Jet Black to Platinum Blonde. Professional in-salon removal and reinstallation when you are ready for your next set. Not sure which shade is right for you? Visit our Contact page — we'll help you find your match. Color Match — Not sure? Let us help: hechair.com/contact