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All Journal International Journal of Health, Engineering and Technology
Khaisya Sabila
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Dentistry Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Antioxidant Body Lotion Formulation From Yakon Leaf Extract (Smallanthus Sonchifolius) Khaisya Sabila; Bangkit Riska Permata; Siwi Hastuti
International Journal of Health Engineering and Technology Vol. 4 No. 6 (2026): IJHET MARCH 2026
Publisher : CV. AFDIFAL MAJU BERKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55227/ijhet.v4i6.659

Abstract

Free radicals due to UV exposure, pollution, and the environment damage the skin and accelerate premature aging, so natural antioxidants are needed. This study aims to formulate and evaluate antioxidant body lotion from ethanol extract of yacon leaves (Smallanthus sonchifolius). Semi-quantitative laboratory experimental research used old yacon leaves from Wonosobo as a purposive sample (1,897 g of dried simplicia). Instruments include a UV-Vis spectrophotometer for DPPH (515 nm) test, a Brookfield viscometer, and a pH meter. Data analysis used IC₅₀ regression and physical quality standards (SNI). The results showed that the IC₅₀ of the extract was 28.08 ppm (very strong, <50 ppm), positive phytochemical screening (phenolics, flavonoids), and all lotion formulas (F0-F3: 0-10% extract) met physical standards (pH 4.6-6.2, viscosity 2,187-9,230 cps, O/W emulsion). Formula F1 (2.5%) was optimal overall. The conclusion is that yacon leaf extract has strong potential for the development of a stable body lotion.
Co-Authors Bangkit Riska Permata Siwi Hastuti