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Introduction: Hair cutting is present in most people's routine and over time tools and techniques have been developed to achieve it. The professional's choice of their working tools has always been based on texture and finishing effects to achieve aesthetic results. Thus, to better understand the importance of tool and haircut technique selection, we investigated the differences in segmentation patterns that the ends of the strands exhibit following various cuts – using four techniques with three types of tools. Furthermore, the question of the need to pay attention to hair cutting was raised by assimilating the concept of fiber, whose cutting direction can increase or decrease its resistance. Material and Methods: Therefore, this study identified different cutting patterns with the aid of optical microscopy and scanning electron microscopy and analyzed the variation in hair fiber integrity through analysis of split ends and breakage. Results and Discussions: Each cutting tool produces a unique pattern, potentially causing different damage to the hair fiber.
Sakamoto et al. (Wed,) studied this question.