Biotin (and) Citric Acid (and) Disodium Phosphate (and) Urea. RonaCare® Biotin Plus by Merck KGaA, Darmstadt Germany is a vitamin-based anti-pollution, moisturizing- and anti-aging agent. It is a special synergistic composition...
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INCI
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BIOTIN
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CITRIC ACID
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DISODIUM PHOSPHATE
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UREA