No porosity type is always dry, as the dryness of the hair can be affected by a variety of factors, including genetics, hair care practices, and environmental factors. However, low porosity hair may be more prone to dryness, as the tightly packed cuticles can make it more difficult for moisture to penetrate the hair shaft.
Low porosity hair can be resistant to moisture, and products can sometimes sit on top of the hair rather than being absorbed, leading to dryness and product buildup. This can make it challenging to hydrate and moisturize low porosity hair, and it may require different hair care techniques and products than other porosity types.
However, it is important to note that dryness can also be caused by a variety of other factors, including overuse of heat styling tools, harsh hair care products, exposure to sun and wind, and underlying health conditions. By identifying the cause of the dryness and taking steps to address it, it is possible to improve the health and appearance of the hair.