Friction, heat and rough drying do most of the visible damage to curls. Swap a rough towel for a soft t-shirt, turn the heat down, and detangle gently with your fingers or a wide-tooth comb. Get regular trims so ends do not look thin, and keep a lightweight oil in your routine so your curls stay looking conditioned between washes. Healthy-looking curls are mostly a maintenance habit, not a single product.
How to Keep Your Curls Looking Healthy