mixed material bibliography Universitas Gadjah Mada 2025 monographic Vol 22 No 1 2025 id Indonesia

Jurnal

The fermented product sector can produce kefir for use in cosmetic preparations. Kefir has weak storage stability and strong antioxidant properties, making it a suitable raw material for cosmetic formulations. The purpose of this study is to determine the best concentration of peanut kefir in Peel-off mask Arachi through antioxidant activity and physical stability during seven cycles of room temperature storage and freeze-thaw (4±2ºC and 40±2ºC). Using the DPPH method based on the IC50 value, the antioxidant activity test was conducted. It was retested after 7 cycles or 28 days. At ambient temperature and freeze-thaw temperature, organoleptic tests, pH, adhesion, and spreadability were conducted in cycles ranging from 0 to 7. The peel-off kefir mask preparations with F1 (0.5%), F2 (1%), and F3 (2%), concentrations created a homogeneous, viscous preparation that was stable at room temperature and freeze-thaw stable for seven cycles, according to the results. In terms of the pH test, the sample showed a drop in pH following storage, stable adhesion for up to seven cycles. However, for F1, the adhesion was not stable in either scenario. With a significant activity category, the formula's antioxidant activity also declines in IC50 values. Therefore, it can be said that even though the peel-off mask preparation changed after storage in a few different ways, it still falls short of the threshold in terms of the physical characteristics of the cosmetic preparation. PERPUSTAKAAN SEKOLAH TINGGI ILMU KESEHATAN SAMARINDA REPOSITORY JN0429 Perpus.Akfarsam (Jurnal Nasional Farmasi) 051 MED j 2258 2026-02-24 08:39:08 2026-02-24 08:41:36 machine generated