4 Ounces. Via Natural semi-permanent hair color is loaded with hair nutrients, and built-in C&H UV proteins for your color and protection against sunlight and environmental pollutants for your hair. Color lasts longer and hair is stronger. Your hair is in better condition after using Via Natural Hair color which is so gentle it can be used immediately after a relaxer. The professional conditioning formula rejuvenates as it colors, leaving the hair silky with shiny, vibrant and long lasting color.