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TeaShell Niacinamide Brightening Soap: ACTS - it is used to wash the face, producing foam and lather, and is presented as a product for skin brightening. Removing it would change the video's focus and demonstration. Appears - boxes of the product are shown in the background. Removing them would not change the video's core demonstration. nNiacinamide, Glutathione, 377: ACTS - these are listed as ingredients in the TeaShell soap, indicating their function in skin brightening. Removing them would change the description of the product's benefits.