Anatomy
C-Curve
The curve of the nail when viewed from the free edge, shaped like the letter C — key to a strong, natural-looking enhancement.
The C-curve is the deepness of the arch across the nail, measured by looking at the tip head-on. A deeper C-curve (often 30–50%) makes nails stronger and more elegant, while a flat curve looks unnatural and weakens easily.
Technicians control the C-curve using pinching, forms, and the natural shape of the nail bed.