Kojic Acid is a natural product against acne black spots on your face, under arms. Dermatologists in the Netherlands advising our kojic acid products to their patients. Justparfum.nl is selling different products for different treatments. We have kojic acid soap, cream, body lotion and day and night cream. Look around at our webshop and if you have any further questions, we're happy to hear it. Just send us an email .