CER-100 by ELIZAVECCA is a cult Korean haircare line trusted worldwide for professional-grade protein and ceramide repair — the collection includes the Collagen Ceramide Coating Protein Treatment (100ml) for deep cuticle repair, the Hair Muscle Essence Oil (100ml) with Argan and 7 plant oils for frizz control and shine, the Collagen Coating Protein Ion Injection (50ml) as a leave-in ionic serum for targeted structural repair, and the Collagen Coating Hair Muscle Treatment Rinse (500ml) with Ceramide NP, Macadamia Oil, and a superfood seed complex for deep conditioning — all powered by Hydrolyzed Collagen, Silk, and Keratin to rebuild damaged hair from within.