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All Journal Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Journal of Pharmascience
Yulius Evan Christian
Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia
Computer Science & IT Medicine & Pharmacology Social Sciences Other

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Enhancing Adolescent Awareness on Safe Cosmetic Use: A Community Education at Santa Patricia High School, Tangerang Putriana Rachmawati; Nicky Nathanael; Jessica Christy Hamzah; Nathaniel Leslie; Sabrina Jovita Bunawan; Sharon Susanto; Yulius Evan Christian
Warta Pengabdian Andalas Vol 32 No 2 (2025)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.32.2.177-184.2025

Abstract

Cosmetics are products designed for use on the external parts of the human body to clean, alter appearance, provide fragrance, improve body odor, or maintain health. The cosmetic industry in Indonesia has experienced significant growth. Technology and beauty stereotypes disseminated through social media have influenced the increasing demand for cosmetics among teenagers. Research shows that 45.4% of teenagers in Indonesia use skincare products before the age of 19, and 46% experience skin health issues due to unsafe products. The Community Service Program aims to enhance teenagers' knowledge about safe cosmetics. This program was conducted through interactive lectures and a peel-off mask-making workshop at Santa Patricia High School in Tangerang, involving 72 students from 10th and 11th grades. Evaluation was performed through pretests and posttests, showing a 16% increase in participants' knowledge. A total of 82% of participants achieved good scores in the posttest. Additionally, 97% of participants understood the material presented, and 99% were satisfied with the overall event. This educational initiative successfully increased students' awareness and knowledge about the safety of cosmetic use, providing new insights into safe ingredients and steps for choosing appropriate cosmetics. Similar activities are encouraged to broaden teenagers' understanding of cosmetic safety.
Formulation and Characterization of Gelatin Nanoparticles from Manis Rejo Leaf Extract (Vaccinium variangiaefolium (Bl.) Miq.) with Glutaraldehyde Concentrations Variations as Crosslinker Yulius Evan Christian
Journal of Pharmascience Vol. 13 No. 1 (2026): Jurnal Pharmascience
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jps.v13i1.23706

Abstract

Manis Rejo (Vaccinium variangiaefolium (Bl.) Miq.) is a plant that dominates at the Tangkuban Parahu area and grows in mountainous regions. Its leaves contain flavonoids with various benefits. The ethyl acetate extract of these leaves has demonstrated cytotoxic activity, making it a potential active compound in nanoparticle-based drug delivery systems. This study aimed to investigate the effect of variations in the glutaraldehyde concentration on the characteristics of the gelatination nanoparticles encapsulating the Manis Rejo leaf extract. The organoleptic properties, moisture content, and solubility of the extract were evaluated and then developed into nanoparticles (NPs) using the desolvation method with glutaraldehyde concentrations of 100 µl, 200 µl, and 300 µl. The characterization included the nanoparticle stability, particle size, polydispersity index (PDI), zeta potential, and morphology. The results showed that the extract was green, had a distinctive odor, a dry texture, a moisture content of 4.31%, and was soluble in ethyl acetate (1:10). The nanoparticles remained physically stable for 20 days at room temperature (25 oC), with particle sizes of 343.4±4.4 nm, 226.3±23.1 nm, and 199.7±1.6 nm, and PDIs of 0.381±0.0234, 0.446±0.0895, and 0.177±0.0195, respectively. The zeta potential values ranged from 15.8±1.1 to 17.8±1.1 mV. Transmission Electron Microscopy (TEM) analysis of formula III revealed a spherical morphology supporting the nanoparticle stability. Glutaraldehyde variation significantly influenced the particle size and PDI.
Co-Authors Jessica Christy Hamzah Nathaniel Leslie Nicky Nathanael Putriana Rachmawati Sabrina Jovita Bunawan Sharon Susanto