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Kiho Watanabe is a renowned Japanese nail artist with five salons in Tokyo since 2009. She created uka Nail Oil and a line of hair and body care to help women in today's busy world pamper themselves just as they would feel in one of her spas. uka is dedicated to using natural and organic ingredients, and each product is ECOCERT and COSMEBIO certified. Watanabe's nail oils are one of the most prestigious in Japan and can be found in the purses and vanities of A-listers and have reached a kind-of cult status. They were only available in Paris and in Asia until now.