What are the main signs of over-processing in eyelash extensions?

Instances of breakage and rapid shedding are key indicators of over-processing in eyelash extensions. When lashes are over-processed, typically due to too much adhesive being applied, inappropriate products, or excessive exposure to heat or chemicals, the natural lashes can weaken. This leads to damage such as breakage and premature shedding, which can significantly affect the overall health and appearance of the lashes. Over-processing compromises the strength of the eyelash, making them more vulnerable to environmental factors and mechanical stress, resulting in a less durable extension.

In contrast, the other options do not signify over-processing in the same way. While increased length and curl might indicate a product or technique that is aggressive, they don’t directly correlate with the health of the natural lashes. Similarly, flexible and thick lashes can be a desired outcome of a well-done application rather than a sign of over-processing. A uniform appearance of all lashes is generally considered a sign of a well-executed lash extension rather than an indication of the natural lashes’ health. Hence, the presence of breakage and rapid shedding stands out as the most critical sign of over-processing.