cover
Contact Name
Angga Saputra Yasir
Contact Email
angga.yasir@km.itera.ac.id
Phone
+6281278873862
Journal Mail Official
kos@itera.ac.id
Editorial Address
Institut Teknologi Sumatera Gedung D Lt 2, Ruang 202. Jl. Terusan Ryacudu, Way Huwi, Kec. Jati Agung, Kabupaten Lampung Selatan, Lampung 35365
Location
Kab. lampung selatan,
Lampung
INDONESIA
Indonesian Journal of Cosmetics
ISSN : -     EISSN : 30263352     DOI : -
The journal includes various fields of cosmetic such as: -Cosmetic Formulation -Marketing in Cosmetic -Analytical Cosmetic -Material in Cosmetic -Natural Cosmetic -Sensory Evaluation of Cosmetic -Perfumery Formulation
Articles 33 Documents
Comparison of Extraction Methods for Green Betel Leaf (Piper betle L.) Based on Stock Solution Concentration Herayati Herayati; Amalia Lathifah Widyadari; Deviana Safitri; Firlina Liovita
Indonesian Journal of Cosmetics Vol. 4 No. 1 (2026): Indonesian Journal of Cosmetics
Publisher : Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/ijcos.v4i1.2976

Abstract

Green betel leaf (Piper betle L.) is a medicinal plant widely recognized for its bioactive compounds, including flavonoids, alkaloids, tannins, saponins, and essential oils, which exhibit antimicrobial, antioxidant, and anti-inflammatory activities. The extraction method plays a crucial role in determining the efficiency of bioactive compound recovery from plant materials. This study aimed to compare several extraction methods for green betel leaf based on the concentration of the resulting stock solution as an indicator of extraction efficiency. Fresh green betel leaves were processed into dried simplicia and extracted using five different methods: maceration, partition and fractionation, digestion, ultrasonic-assisted extraction (UAE), and Soxhlet extraction. Methanol, n-hexane, and distilled water were used as extraction solvents according to the characteristics of each method. The concentration of each stock solution was calculated from the dry extract residue obtained after solvent evaporation. The results showed that UAE produced the highest stock solution concentration (2.4% w/v), followed by Soxhlet extraction (0.8% w/v), digestion (0.04% w/v), maceration (0.01% w/v), and partition and fractionation (0.0003% w/v). The superior performance of UAE was attributed to acoustic cavitation, which enhanced mass transfer while minimizing thermal degradation of heat-sensitive bioactive compounds. These findings demonstrate that UAE is the most effective extraction technique among the evaluated methods for obtaining bioactive compounds from green betel leaves and has considerable potential for developing natural cosmetic ingredients.
Formulation, Physicochemical Characterization, and Stability Assessment of a Moringa oleifera Leaf Extract Serum Gel Agitha Casanova Capah
Indonesian Journal of Cosmetics Vol. 4 No. 1 (2026): Indonesian Journal of Cosmetics
Publisher : Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/ijcos.v4i1.3031

Abstract

Moringa oleifera leaves have attracted considerable interest as a natural source of bioactive compounds for cosmetic applications because of their antioxidant and antimicrobial properties. This study aimed to develop and evaluate a gel serum containing M. oleifera leaf extract as a natural skincare formulation with desirable physicochemical properties and storage stability. The leaves were extracted by maceration using 96% ethanol, and the resulting extract was subjected to qualitative phytochemical screening before incorporation into a gel serum formulation containing glycerin, butylene glycol, hyaluronic acid, and niacinamide. The formulated gel serum was evaluated for its organoleptic characteristics, homogeneity, pH, viscosity, and physical stability under storage at 25°C and 40°C for one month. Phytochemical screening confirmed the presence of flavonoids, steroids, tannins, and saponins, whereas alkaloids were not detected. The developed gel serum exhibited a homogeneous appearance, a skin-compatible pH of 5.35, and viscosities of 420 and 303 mPa·s at 30 and 60 rpm, respectively, while maintaining good physical stability under both storage conditions. These findings suggest that M. oleifera leaf extract is a promising natural bioactive ingredient for stable and multifunctional serum formulations and warrants further investigation regarding long-term stability, skin compatibility, and clinical efficacy.
Formulation and Evaluation of a Guava Leaf (Psidium guajava L.) Extract-Based Soap Bar as a Cleanser Herayati Herayati; Adelia Oktaviana
Indonesian Journal of Cosmetics Vol. 4 No. 1 (2026): Indonesian Journal of Cosmetics
Publisher : Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/ijcos.v4i1.3063

Abstract

The cosmetic industry is rapidly developing, with a focus on safer and environmentally friendly formulations. Soap bars, which are widely used as skin-cleansing products, are increasingly being innovatively formulated using natural ingredients that provide additional benefits for the skin. Guava leaves (Psidium guajava L.), which contain flavonoids, tannins, and phenolic compounds, exhibit antioxidant, anti-inflammatory, and antibacterial properties, making them promising ingredients for cosmetic formulations. This study aimed to formulate and evaluate a guava leaf extract-based soap bar as a skin cleanser with antioxidant properties. An experimental method was employed to develop soap bars containing guava leaf extract through the saponification of virgin coconut oil (VCO), stearic acid, glycerin, and sodium hydroxide (NaOH), combined with guava leaf extract. The evaluations included physical appearance, pH, foam stability, and antioxidant activity using the DPPH assay. The resulting soap bars exhibited stable physical characteristics, an appropriate pH range (6–7), good foam stability, and significant antioxidant activity, with a DPPH inhibition percentage exceeding 70%. These findings suggest that guava leaf extract-based soap bars not only function effectively as cleansers but also provide additional protection against oxidative stress, supporting their potential as natural and functional skincare products.

Page 4 of 4 | Total Record : 33