Estel White Balance The secret of the perfect blonde is a service for transforming into blonde. For home use. Blonde is like a precious stone that adorns a girl, emphasizes her uniqueness and individuality, highlights her inimitable style, sets the tone for her mood and makes her image luxurious and delightful. Estel shares the secret of the perfect blonde with you. With Estel White Balance, your dreams of a luxurious and shining blonde can come true. Lightening up to 6 tones and gentle ammonia-free toning with Plex technology will give your hair a chic shine and delightful color.