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Apply GHK-Cu serum or cream to the face, neck, and areas with fine lines or pigmentation

GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring copper-binding tripeptide first identified in human plasma

Featured Ingredients: Glutathione Helps support a brighter and fresher-looking complexion

The distance between the contour lines represents the steepness of the slope, the lesser the distance, the more is the steepness (changing pattern of interaction), while the larger space between contour lines represents a soft slope (lesser changing pattern) while no lines show flat region (constant type of interaction)

Define the compound, summarize literature carefully, explain documentation standards, and keep every claim tied to research context