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| Advisor(s) | apt. Nina Irmayanti Harahap, S.Si., M.Si. | |
| Author(s) | HUTAHURUK, NISA FEBRIYANTI | |
| Issued Date | 2026 | |
| Abstract | Red kelakai leaves (Stenochlaena palustris (Burm. f.) Bedd.) contain secondary metabolites with antioxidant potential, making them an active ingredient in clay mask preparations. This study is aimed to formulate an ethanol extract of red kelakai leaves into a clay mask preparation, determine the effect of varying bentonite and kaolin concentrations on the physical stability of the preparation, evaluate antioxidant activity in vitro and determine the best formula. The study was conducted experimentally in the laboratory through extract preparation using a maceration method using 96% ethanol, clay mask formulation, physical quality evaluation, irritation testing, effectiveness testing using a skin analyzer, and antioxidant activity testing by using the DPPH method using a UV-Vis spectrophotometer. The results showed that all formulas met physical quality requirements and were stable after cycling tests. Variations in bentonite and kaolin concentrations affected the physical characteristics of the preparation. The IC₅₀ value of the ethanol extract of red kelakai leaves was 69,8415 ppm, while Formula 1, Formula 2, Formula 3 and the positive control Wardah Blue Clay Mask were 97,1406 ppm, 93,9020 ppm, 82,4395 ppm, and 99,6742 ppm, respectively. All are classified as strong antioxidants. Formula 3 is the best formula because it has good physical stability, does not cause irritation, provides increased moisture, skin brightness, the highest reduction in the number of facial wrinkles and shows the best antioxidant activity. | 1 |
| Item Type | Skripsi | |
| Keywords | Stenochlaena palustris (Stenochlaena palustris), Clay Mask (Clay Mask), Formulasi (Formulation), Stabilitas (Stability), Antioksidan (Antioxidant) | 1 |
| Collection | Fakultas Farmasi, S1-Farmasi | |
| Publisher | INSTITUT KESEHATAN DELI HUSADA | |
| Submitted Date | 18-08-2026 | |
| Updated Date | 18-08-2026 | |
| URI | No URI | |
| File |
2218127_NISAFEBRIYANTIHUTAHURUK_SKRIPSI_S1.pdf
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