4K Plus Whitening Night Cream is a skincare product that is claimed to help whiten, moisturize, and tighten the skin, among other benefits. Here are some details about the product based on the search results:

Ingredients or materials:

• Alpha Arbutin: a natural ingredient extracted from plants such as bearberries, blueberries, and cranberries. It is responsible for skin lightening and brightening by decreasing melanin production.
• Collagen: a protein that helps to keep the skin firm and elastic.
• Ginseng: an ingredient that nourishes the skin deeply.
• Glutathione: an antioxidant that helps fight free radicals and reduce melanin pigmentation that causes dull skin, freckles, and wrinkles.
• Snow Lotus extract: an ingredient that reduces the problem of inflammation and acne with pus.
• Other ingredients include solvents, fragrances, viscosity control agents, emollients, and moisturizers.

Positive aspects:

• The cream is claimed to help whiten, moisturize, and tighten the skin.
• It contains natural ingredients such as Alpha Arbutin, Collagen, and Ginseng that are beneficial for the skin.
• The product is available for worldwide shipping.

Negative aspects:

• There is no information available on potential negative aspects of the product.

In summary, 4K Plus Whitening Night Cream is a skincare product that contains natural ingredients such as Alpha Arbutin, Collagen, and Ginseng, which are claimed to help whiten, moisturize, and tighten the skin. The cream also contains other ingredients such as solvents, fragrances, viscosity control agents, emollients, and moisturizers. There is no information available on potential negative aspects of the product.