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Abstract

Anticellulite topical gel preparation with caffeine as active ingredient needs a penetration enhancer to reach subcutaneous layer. Sodium hyaluronate (NaHA), the sodium salt of hyaluronic acid, is a hydrophilic polysaccharide derivative polymer. It has ability to enhance percutaneous penetration by loosening the dense of the compact substance stratum corneum. The aim of this research was to observe the effects of NaHA on caffeine penetration as anticellulite active agent in three types of gel preparation: hydrogel, hydroalcoholic gel, and gel emulsion. Each gel type contained caffeine 1,5% and was varied into three formulas. Formula 1 contained HPMC 2% as gel basis; formula 2 contained HPMC 2% and NaHA 0,5%; formula 3 contained NaHA 2% as gel basis. Caffeine penetration properties were analyzed by Franz diffusion cell in vitro test using rat skin as membrane. Percent caffeine penetration of hydrogel formula 1, 2, 3 were 9,41 ± 0,01%; 11,74 ± 0,13%; 16,32 ± 0,03%, respectively. Percent caffeine penetration of hydroalcoholic gel formula 1, 2, 3 were 19,54 ± 0,02%; 22,99 ± 0,23%; 7,42 ± 0,08%, respectively. Percent caffeine penetration of gel emulsion formula 1, 2, 3 were 10,47 ± 0,19%; 13,41 ± 0,12%; 18,42 ± 0,06%, respectively. The result showed that NaHA enhanced the caffeine percutaneous penetration properties in various gel preparations, except hidroalkoholic gel formula 3.

Bahasa Abstract

Sediaan gel antiselulit topikal dengan zat aktif kofein memerlukan agen untuk meningkatkan penetrasi mencapai lapisan subkutan. Natrium hialuronat (NaHA), bentuk garam asam hialuronat, merupakan polimer hidrofilik derivat polisakarida. NaHA memiliki kemampuan meningkatkan penetrasi perkutan dengan mengubah susunan sel-sel stratum korneum yang tersusun rapat menjadi lebih renggang. Penelitian ini bertujuan untuk mengetahui pengaruh NaHA terhadap penetrasi kofein sebagai zat aktif antiselulit dalam sediaan hidrogel, hidroalkoholik gel, dan emulsi gel. Masing-masing sediaan mengandung kofein 1,5% dan terbagi atas 3 formula. Formula 1 mengandung basis gel HPMC 2%; formula 2 mengandung basis gel HPMC 2% dan NaHA 0,5%; formula 3 mengandung NaHA 2% sebagai basis gel. Uji penetrasi dilakukan secara in vitro menggunakan sel difusi Franz dengan kulit tikus sebagai membran selama 8 jam. Persentase kofein terpenetrasi sediaan hidrogel formula 1, 2, 3 secara berturut-turut adalah 9,41 ± 0,01%; 11,74 ± 0,13%; 16,32 ± 0,03%. Persentase kofein terpenetrasi sediaan hidroalkoholik gel formula 1, 2, 3 secara berturut-turut adalah 19,54 ± 0,02%; 22,99 ± 0,23%; 7,42 ± 0,08%. Persentase kofein terpenetrasi sediaan emulgel formula 1, 2, 3 secara berturut-turut adalah 10,47 ± 0,19%; 13,41 ± 0,12%; 18,42 ± 0,06%. Hasil menunjukkan NaHA meningkatkan penetrasi kofein perkutan berbagai sediaan gel, kecuali hidroalkoholik gel.

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