Hairfine

Hairfine refers to a very fine diameter of hair. This characteristic is often genetic and can influence hair texture, thickness, and how hair styles. Hairfine strands are typically less than 0.04 millimeters in diameter. In contrast, coarse hair can be 0.1 millimeters or more in diameter. People with hairfine hair often describe their hair as being thin, easily tangled, and lacking volume.

The fineness of hair is determined by the hair follicle's size and shape, which is genetically influenced. While the diameter is a primary factor, other elements like hair density (the number of hairs on the scalp) also contribute to the overall perception of hair thickness. Hairfine hair can sometimes be more prone to damage from heat styling and chemical treatments due to its delicate structure.

There are various products and styling techniques marketed towards individuals with hairfine hair, aiming to add volume, body, and protection. These can include volumizing shampoos and conditioners, texturizing sprays, and specific cutting techniques. Understanding hairfine as a natural characteristic rather than a condition is important, as it is a common and normal variation in human hair.