Category: Hair science

Only 1-2% of the global population has naturally red hair, a characteristic often shrouded in myth. So, which deficiency causes red hair, if any? Contrary to popular belief, the vibrant color is almost always genetic, a result of recessive gene variations, rather than a nutritional or mineral issue.

Over 75% of the world's population has naturally dark hair, meaning a large amount of a pigment called eumelanin is present. This inherent melanin distribution is known in cosmetology as the **natural contributing pigment**, which becomes visible during the hair lightening process.