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"Sarang burung walet mengandung glikoprotein, asam lemak, dan epidermal growth factor yang diketahui memiliki aktivitas antioksidan dan anti-aging yang potensial. Tujuan dari penelitian ini adalah memperoleh aktivitas antioksidan dan anti-kolagenase dari ekstrak secara in vitro, serta mengetahui reaksi iritasi dan manfaat dari sediaan krim esktrak air sarang burung walet sebagai krim anti-aging pada sukarelawan wanita setelah produk diaplikasikan langsung kepada kulit. Metode ekstraksi menggunakan pelarut aquabidestilata, lalu dikeringkan dengan liofilisasi, selanjutnya diuji kadar protein dalam ekstrak. Aktivitas antioksidan diuji dengan DPPH dan penghambatan kolagenase diuji dengan kit kolagenase inhibitor. Stabilitas fisik krim diuji selama 12 minggu. Uji iritasi kulit dilakukan pada 32 wanita dengan patch oklusif. Uji efikasi sediaan krim anti-aging dilakukan pada 31 wanita dengan durasi pemakaian produk selama 28 hari. Hasil penelitian didapatkan bahwa kadar protein dari ekstrak sarang burung walet adalah 52,08%. Nilai dari IC50 antioksidan adalah 734,52 μg/mL sedangkan nilai IC50 dari aktivitas penghambatan kolagenase adalah 118,86 μg/mL. Krim anti-aging ekstrak air sarang burung walet stabil secara fisik selama 12 minggu. Krim anti-aging ekstrak air sarang burung walet tidak/sedikit menyebabkan iritasi kulit serta memberikan peningkatan yang signifikan secara statistik (p < 0,05) terhadap parameter serat kolagen, elastisitas kulit, kelembaban kulit dan penurunan pigmen kulit setelah 28 hari penggunaan produk. Kesimpulan dari penelitian ini adalah ekstrak air sarang burung walet memiliki aktivitas anti-kolagenase yang cukup kuat, sediaan krim ekstrak air sarang burung walet stabil secara fisik selama 12 minggu dan setelah diuji klinis terbukti efektif untuk mencegah penuaan dini di kulit dengan perubahan nilai parameter aging.

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Edible bird’s nest contains glycoproteins, fatty acids, and epidermal growth factors which are known to have potential antioxidant and anti-aging activities. The purpose of this study was to obtain antioxidant and anti-collagenase activity from extracts, as well as irritation reactions and efficacy of edible bird’s nest water extract cream as an anti-aging cream in women volunteers after product being applied directly to the skin. The extraction method used aquabidestilata solvent, then the liquid extract dried by lyophilization, after that determination the protein content in the extract. Antioxidant activity was tested with DPPH and collagenase inhibition activity was tested with a collagenase colorimetric assay kit. The physical stability of the cream was tested for 12 weeks. The skin irritation test was performed on 32 women with an occlusive patch test. The effectiveness test of anti-aging cream was carried out on 31 women with a duration of 28 days of product application. The results showed that the protein content of edible bird's nest was 52,08%. The IC50 value of the antioxidant was 734,52 μg / mL while the IC50 value of the collagenase inhibition activity was 118,86 μg / mL. Water extract of edible bird’s nest anti-aging cream was physically stable for 12 weeks Water extract of edible bird’s nest anti-aging cream did not or slightly cause skin irritation and provided a statistically significant increase (p < 0.05) in the three parameters of aging, that were collagen fibers, skin elasticity, skin moisture and a significant reduction in skin pigment color (p < 0.05) after 28 days of product application. The conclusion of this study is that the water extract of edible bird's nest has quite strong anti-collagenase activity, water extract of edible bird’s nest anti-aging cream is physically stable for 12 weeks and has been proven effective in preventing premature skin aging by improving the value of the aging parameters."

"Ekstrak biji anggur (EBA) memiliki potensi besar sebagai pencerah kulit karena banyak mengandung senyawa polifenol. Namun, efeknya membutuhkan waktu yang lama. Penelitian ini bertujuan untuk menilai efektivitas serum emulgel EBA sebagai pencerah kulit serta derajat iritasinya pada kulit sukarelawan. Penetapan kadar fenol total dan resveratrol, aktivitas antioksidan dan penghambatan tirosinase dilakukan pada EBA. EBA dibuat dalam serum emulgel dengan konsentrasi 20% dan dievaluasi sifat fisikokimia dan stabilitas fisiknya. Potensi iritasi kulit dari formula dinilai dengan uji tempel 48 jam. Manfaat serum emulgel EBA sebagai pencerah kulit dievaluasi menggunakan Mexameter dengan mengukur indeks melanin kulit pada 30 orang sukarelawan. Kadar fenol total dan resveratrol pada EBA adalah 830 mg GAE/g (setara asam galat) dan 15,45 mg/100 g. EBA menunjukkan aktivitas antioksidan dan penghambatan tirosinase dengan nilai konsentrasi penghambatan setengah maksimal (IC50) adalah 7,84 dan 207,72 μg/mL. Serum emulgel EBA menunjukkan stabilitas fisik dan karakteristik yang baik yaitu homogen dan tidak terjadi sineresis. Penggunaan serum emulgel EBA tidak menyebabkan iritasi kulit dan menunjukkan penurunan indeks melanin yang signifikan (p < 0,05) sebesar 7,42% setelah 14 hari. Kesimpulan penelitian adalah serum emulgel EBA memiliki karakteristik yang baik, aman dan efektif sebagai kosmetik pencerah kulit.

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Grape seed extract (GSE) has great potential in exhibiting skin lightening properties due to its rich polyphenolic compounds. However, its effect takes a long time. The current study aimed to assess the effectiveness of the skin lightening GSE emulgel- based serum and also its degree of irritation in the skin of volunteers. The GSE was determined for the total phenolic and resveratrol contents, antioxidant, and tyrosinase inhibition activities. The GSE was prepared in 20% emulgel-based serum and evaluated for its physicochemical properties and physical stability. The potential for skin irritation of the formulation was assessed using the 48 h patch test. The effectiveness of the skin lightening GSE emulgel-based serum was evaluated using Mexameter by measuring the melanin index in 30 volunteers. The total phenolic and resveratrol contents of GSE were 830 mg GAE/g (gallic acid equivalent) and 15.45 mg/100 g, respectively. GSE demonstrated antioxidant and tyrosinase inhibitory activities with the half-maximal inhibitory concentration (IC50) of 7.84 and 207.72 μg/mL, respectively. The GSE emulgel-based serum showed good physical stability and characteristics which homogeneous and no syneresis. The application of the GSE emulgel-based serum did not cause any skin irritation and showed a significant decrease in the skin melanin index (p < 0.05) by 7.42% after 2 weeks. In conclusion, the GSE emulgel-based serum was safe and effective as a skin lightening product."