Which cutting tool should generally be avoided when working with curly hair for better results?

The preferred choice here is the razor as it is generally advised to be avoided when working with curly hair for achieving better results. Razors can create a lot of texture and remove bulk but may also contribute to more uneven ends and frizz, which can be problematic for maintaining the shape and integrity of curls. Curly hair tends to be dry and fragile, and using a razor can further compromise the hair's health by making it more prone to splitting and breakage.

In contrast, shears, clippers, and thinning shears are designed to cut hair in ways that can respect the natural curl pattern. Shears provide a clean cut that maintains a cohesive shape, clippers are useful for achieving uniform lengths, and thinning shears can help control bulk without the harshness that a razor might introduce. Each of these tools allows for greater precision and control, essential when working with the unique characteristics of curly hair.