Pravana's ChromaSilk Vivids Pastels Hair Color delivers long-lasting, semi-permanent color while preserving hair's integrity and shine. Silk amino acids help color penetrate deep into the hair's cortex, while keratin amino acids strengthen hair fibers and lock color in place.As a direct dye, this formula doesn't require a developer, making it easy to achieve beautiful pastel hues at home. It's also extremely gentle on hair, so it's suitable for most hair types and applications.