Daun Cempedak (Artocarpus integer) merupakan salah satu tumbuhan yang diketahui memiliki kandungan senyawa flavonoid dan berpotensi digunakan sebagai tabir surya. Penelitian ini bertujuan untuk menentukan kadar flavonoid total dan aktivitas tabir surya fraksi ekstrak etanol daun A. integer dengan menggunakan instrumen spektrofotometer UV-Vis. Daun A. integer segar dilakukan proses ekstraksi secara maserasi dengan pelarut etanol 96 %. Ekstrak kering difraksinasi dengan n-heksan dan etil asetat serta fraksi diuapkan hingga kental. Penentuan kadar flavonoid dilakukan dengan metode kolorimetri AlCl3, sedangkan uji Sun Protection Factor (SPF) dilakukan pada konsentrasi 200, 400, 600, 800, dan 1000 ppm menggunakan instrumen spektrofotometer UV-Vis. Hasil menunjukkan kadar flavonoid total fraksi ekstrak etanol daun A.integer yaitu fraksi n-heksan 1,565 ± 0,007 % b/b, fraksi etil asetat 2,443 ± 0,035 % b/b, dan fraksi air 0,560 ± 0,002 % b/b ekivalen kuersetin. Aktivitas tabir surya fraksi ekstrak etanol daun A. integer yang paling baik terdapat pada konsentrasi 1000 ppm yaitu fraksi etil asetat termasuk kategori kuat dengan nilai SPF 8,511; fraksi n-heksan termasuk kategori sedang dengan nilai SPF 4,786; dan  fraksi air termasuk kategori sedang dengan nilai SPF 4,322.

South Kalimantan is a wetland area that has a high level of biodiversity, both plants and animals, which can be used as raw materials for herbal products. The herbal medicine company Pucuk Sirih is a Traditional Medicine Small Business which is located in selling various herbal products. PJ Pucuk Sirih wants to develop and innovate products, packaging and marketing systems because since the first production there has been no change in product, packaging and marketing system development. The new product formula, namely Harbumin Capsules (haruan fish capsules) has not yet produced good product quality, this is indicated by the wet capsule products after the production process so it is necessary to evaluate the product formula. The purpose of this community service is to provide training on production and packaging methods in accordance with CPOTB, evaluate the Harbumin capsule formula, produce a digitalized marketing system with website development. The result of the activity is that the production team gains knowledge regarding good production and packaging methods, the results of the evaluation of Harbumin capsule products show that the capsules have met the requirements, the marketing and sales system has been digitized and can be obtained online.