Ключевые слова: aging, beautiful, beauty, canities, care, color, coloring, concept, conditioner, curly, disease, dyeing, early, empty, faded, female, genetics, graduation, gray, grayness, greying, grizzle, hair, hairdresser, health, heredity, loss, macro, melanin, natural, nature, nerves, pigment, premature, procedure, process, recovery, research, shampoo, spa, stress, texture, treatment, trendy, trichology, wavy, woman,