To care for curly hair extensions, you should follow these steps:
Wash them gently: Use a sulfate-free shampoo and conditioner, and avoid rubbing the hair too much when washing.
Condition thoroughly: Condition the hair well to keep it hydrated and to prevent tangles.
Air dry: Do not use a hair dryer, as heat can damage curly hair. Instead, let the hair air dry or use a diffuser.
Avoid brushing: Brushing curly hair can cause frizz and breakage. Instead, use a wide-toothed comb or your fingers to detangle the hair gently.
Use leave-in conditioner: After washing, apply a leave-in conditioner to help maintain the hair's moisture and protect it from damage.