The cutting ratio, in the context of thinning scissors, refers to the proportion of hair strands that are cut versus those that remain uncut during a single snip. Thinning scissors, often used to reduce hair volume and add texture, have a unique design featuring teeth on one blade and a smooth blade on the other. These teeth create gaps, allowing only a portion of the hair to be cut.

The cutting ratio is determined by the number and spacing of the teeth. For example, a pair of thinning scissors with a 50% cutting ratio means that half of the hair strands are cut while the other half remain intact. This ratio can vary significantly, with some scissors designed to remove as little as 10-20% of hair, providing a more subtle thinning effect, while others might remove up to 70-80%, offering a more dramatic reduction in volume.

The cutting ratio is crucial for stylists to understand as it directly impacts the final look and texture of the haircut. A lower cutting ratio is suitable for fine or thin hair, where too much thinning could lead to an undesirable wispy appearance. Conversely, a higher cutting ratio is beneficial for thick or coarse hair, helping to manage bulk and create a more lightweight, manageable style.

To effectively use thinning scissors, stylists need to consider the hair type, desired outcome, and the specific cutting ratio of their scissors. Using the right cutting ratio ensures that the thinning process enhances the hairstyle without compromising the hair's integrity or the client's desired look.