• Fine natural keratin fibers that adhere to the hair, providing greater density naturally throughout the day. • Suitable for men and women, it is the fastest way to achieve greater hair volume. • Usage recommendation: first apply the darkest color as a base and then touch up with the lighter color. • Densifying hair fibers offer an instant and subtle way to add volume. • Made in the United Kingdom with 100% natural keratin, paraben-free, ideal for people with sensitive scalps. • COLOR LOCK technology prevents stains on skin and clothing. • Product dimensions: 4.6 cm wide, 12.3 cm high, and 7 cm long. • Product weight: 30 grams.