therapeutic action: depigmentation

Synergistic impact of arbutin and kaempferol-7-O-α-l-rhamnopyranoside from Nephelium lappaceum L. on whitening efficacy and stability of cosmetic formulations

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This research demonstrates that a natural compound from rambutan seeds works synergistically with arbutin to create more effective skin whitening products. The combination is 35 times more potent than arbutin alone at preventing melanin production in skin cells. The resulting cosmetic formulation maintains its effectiveness and stability for approximately 5.2 months, offering a safer natural alternative to conventional skin lightening agents that can cause irritation.

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Development of dihydrooxyresveratrol-loaded nanostructured lipid carriers for safe and effective treatment of hyperpigmentation

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This research developed a new skin-brightening treatment using nanoparticles to deliver oxyresveratrol and its modified form (DHO) more effectively to the skin. The scientists improved the stability of these compounds by creating tiny lipid-based carriers that protect them from light damage and help them penetrate the skin barrier. Testing showed these formulations safely reduced melanin production without harming healthy skin cells, offering promise for cosmetic products to treat dark spots and hyperpigmentation.

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Identification of two novel thiazolidin-2-imines as tyrosinase inhibitors: synthesis, crystal structure, molecular docking and DFT studies

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Scientists created two new chemical compounds that are much better at slowing down the enzyme tyrosinase, which is responsible for skin darkening and browning of foods. These compounds were tested both in the lab and using computer models, and they worked about 14 times better than kojic acid, a commonly used anti-darkening ingredient. The research suggests these new compounds could be useful in cosmetics, food preservation, and treating skin conditions like unwanted pigmentation.

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Kojic Acid Showed Consistent Inhibitory Activity on Tyrosinase from Mushroom and in Cultured B16F10 Cells Compared with Arbutins

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This study compared four skin-whitening compounds to find the best one for use as a testing standard in laboratories. Kojic acid was found to be the most reliable choice because it effectively blocks the enzyme tyrosinase, which produces skin pigment, without damaging cells. The researchers tested these compounds both in test tubes and in actual melanoma cells to understand how they work differently.

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Tyrosinase Inhibitors Derived from Chemical Constituents of Dianella ensifolia

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Researchers isolated four new plant compounds and 67 known compounds from Dianella ensifolia, a traditional Asian medicinal plant. Two of these compounds (11 and 14) were found to inhibit tyrosinase, the enzyme responsible for melanin production, making them approximately 13 times more effective than arbutin, a common cosmetic whitening ingredient. These findings suggest that D. ensifolia could be developed as a natural source of skin-whitening agents for treating age spots, freckles, and other pigmentation disorders.

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Biological and Cheminformatics Studies of Newly Designed Triazole Based Derivatives as Potent Inhibitors against Mushroom Tyrosinase

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Researchers developed new chemical compounds based on triazole structures to inhibit tyrosinase, an enzyme that produces melanin in skin. One compound (9h) proved particularly effective at blocking this enzyme, working 170 times better than the standard drug kojic acid. Computer modeling showed how this compound fits into the enzyme’s active site. These findings could lead to safer and more effective treatments for skin discoloration disorders like melasma and age spots.

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