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All Journal Amalee: Indonesian Journal of Community Research & Engagement
Yulius Evan Christian
Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University of Indonesia, Jakarta 14440, Indonesia
Humanities Public Health Social Sciences Other

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Improving Cosmetic Safety Awareness Through an Educational Program and Hands-On Workshop on a Pomegranate-Based Peel-Off Mask for Adolescents Putriana Rachmawati; Lusy Noviani; Sharon Susanto; Yulius Evan Christian; Madeleine Rose Karjono; Sherly Nataya; Hellery Yovanti Joseph; Revista Noveria
Amalee: Indonesian Journal of Community Research and Engagement Vol. 7 No. 1 (2026): Amalee: Indonesian Journal of Community Research and Engagement
Publisher : LP2M INSURI Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/amalee.v7i1.9365

Abstract

Adolescents are increasingly exposed to cosmetic products and marketing claims, yet their awareness of cosmetic safety remains limited. Interactive educational approaches that combine theoretical knowledge with practical experience are still rarely implemented. This study aimed to evaluate the effectiveness of an interactive educational intervention in improving adolescents’ knowledge of cosmetic safety and the appropriate use of skincare ingredients. A quasi-experimental study with a one-group pretest–posttest design was conducted on December 3, 2025, involving n = 61 high school students. The intervention integrated BPOM-based education with a hands-on workshop on peel-off mask formulation. Knowledge was assessed using a 10-item questionnaire, which was pilot-tested for clarity and relevance. Data were analyzed using a paired t-test (p < 0.05). The mean knowledge score increased from 72.71±16.72 to 84.67±10.45, with a statistically significant difference (p = 0.002) and a large effect size (Cohen’s d = 1.36). The distribution of scores shifted toward higher categories, indicating improved understanding. Participants also reported high levels of satisfaction with the program. The intervention effectively improved adolescents’ knowledge of cosmetic safety. The novelty lies in integrating regulatory education with hands-on formulation activities as an interactive learning model. However, the absence of a control group and the single-setting design limit generalizability.
Enhancement of Science Literacy and Cosmetic Formulation Skills Among High School Students Through Solid Perfume Balm Workshop Untung Gunawan; Keiko Weimy Ho; Valerina; Allessandra Gabriella Wijaya; Birgitta Evania Hotyus; Yulius Evan Christian
Amalee: Indonesian Journal of Community Research and Engagement Vol. 7 No. 2 (2026): Amalee: Indonesian Journal of Community Research and Engagement
Publisher : LP2M INSURI Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37680/amalee.v7i2.9993

Abstract

High school students' knowledge of cosmetics is generally limited to finished products, without understanding their composition, formulation processes, or safety aspects, which may increase the risk of improper product use. This community service activity aimed to enhance scientific literacy, cosmetic safety awareness, and formulation skills among high school students through an experiential learning-based solid perfume balm workshop, an approach not yet widely implemented in the Indonesian high school context. A pre-post design without a control group was employed with 21 Grade XI Science students (52.38% male; mean age 16.4 years) at SMA Katolik Ricci 1, Jakarta. The evaluation instrument consisted of 10 validated multiple-choice questions. Because the Shapiro-Wilk test confirmed non-normality of difference scores (W = 0.7774; p = 0.0003), the Wilcoxon Signed Ranks Test was used for hypothesis testing. Participant satisfaction was assessed with a seven-item Likert-scale questionnaire. The mean score increased from 77.62 (pretest) to 90.48 (posttest). The proportion of participants with high knowledge rose significantly from 61.90% to 95.24% (Z = −3.823; p < 0.001; effect size r = 0.83). All participants successfully produced their own perfume balm product. The mean satisfaction score was 4.74 out of 5.00. An experiential learning workshop integrating cosmetic safety, formulation skills, and science literacy proved effective for high school students. Recommended follow-up actions include control-group designs, larger samples, and long-term knowledge retention assessments.
Co-Authors Allessandra Gabriella Wijaya Birgitta Evania Hotyus Hellery Yovanti Joseph Keiko Weimy Ho Lusy Noviani Madeleine Rose Karjono Putriana Rachmawati Revista Noveria Sharon Susanto Sherly Nataya Untung Gunawan Valerina