Indian Journal of Dermatology
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E-STUDY
Year : 2013  |  Volume : 58  |  Issue : 2  |  Page : 157

A comparative study of the efficacy of 4% hydroquinone vs 0.75% Kojic acid cream in the treatment of facial melasma


Department of Dermatology, Fr. Muller Medical College, Mangalore, India

Correspondence Address:
Rochelle C Monteiro
Department of Dermatology, Fr. Muller Medical College, Mangalore
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5154.108070

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Background: Melasma is a common acquired cause of facial hyperpigmentation seen predominantly among females with significant psychological and social impact. It is often recalcitrant to treatment. Several topical hypopigmenting agents have been used to combat melasma. Hydroquinone and Kojic Acid are well established monotherapeutic agents for treating melasma. Objectives: This study focuses mainly on the efficacy of once daily application of 4% Hydroquinone and 0.75% Kojic Acid cream (containing 0.75% Kojic acid and 2.5% vitamin C) so as to determine an effective modality of treatment for facial melasma. Materials and Methods: A total number of 60 patients with facial melasma attending the Out-patient department of Dermatology, Venerology and Leprosy, Fr. Muller Medical College Hospital, Mangalore from Oct 2008-April 2010 were studied. Patients were allocated alternately to group A and group B. Group A patients received 4% Hydroquinone cream and group B patient received a Kojic Acid cream (which contained 0.75% Kojic acid and 2.5% vitamin C) and were advised to apply topically once daily at night. Patients were followed up on 4 th , 8 th and 12 th week. At each visit side effects were noted and clinical response to treatment was calculated using the MASI score. Statistical Methods: Chi square test, student 't' test. Results: At the 4 th week post treatment evaluation, facial hyperpigmentation responded early to 4% Hydroquinone cream than to 0.75% Kojic Acid cream. At the end of 12 week treatment period, 4% Hydroquinone cream had an overall superiority to 0.75% Kojic Acid cream as a topical hypopigmenting agent. Conclusion: The results of the study show that 4% Hydroquinone cream is a better topical hypopigmenting agent with rapid rate of clinical improvement when compared to 0.75% Kojic Acid cream.


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