Which type of hair grows deeper if it is gray in the late anagen stage?

The correct answer is gray hair, as it tends to have a different structural composition compared to other hair colors. Hair that is gray has often lost its pigment due to a reduction in melanin production, which can also influence the hair's texture and density. In the late anagen stage of growth, gray hair is more likely to have thicker shafts or a different follicular environment that promotes deeper growth compared to other colors.

Typically, the hair growth cycle consists of anagen (growth), catagen (transitional), and telogen (resting) phases. The anagen phase is crucial because it signifies active growth and the length of this phase contributes to how deep the hair can grow. Gray hair in this stage may benefit from certain factors like the depth of the follicle or the overall health of the scalp, which could allow it to grow deeper.

Other hair types, such as brown, black, and blonde, may not experience the same depth of growth at this late stage due to variations in their texture and the density of the surrounding skin. Thus, gray hair is recognized for its potential to grow deeper during this phase due to these distinctive biological characteristics.