noun
General term for the tactile quality or surface feel of something, not limited to skin.
この布の肌質はとても柔らかい。
The texture of this cloth is very soft.
noun
skin texture; skin quality; skin type
Specifically refers to the condition, feel, or type of skin, often used in beauty and skincare contexts.
肌質に合った化粧品を選ぶことが大切です。
It is important to choose cosmetics that suit your skin type.