Abstract: A method for making a skin care composition by identifying connections between cosmetic agents and genes associated with one or more skin aging conditions. The method includes accessing a plurality of instances and at least one skin aging gene expression signature, comparing the at least one skin aging gene expression signature to the plurality of the instances, assigning a connectivity score to each instance based on the comparison and incorporating the cosmetic agent into a skin care composition when the connectivity score of the instance associated with the cosmetic agent has a negative correlation.

Abstract: A system for identifying connections between a cosmetic agent and at least one gene associated with a skin aging condition. The system includes a computer readable medium having stored thereon a plurality of instances and a skin aging gene expression signature. Each instance comprises an ordered list of identifiers representing a plurality of differentially expressed genes generated as a result of contact between the cosmetic agent and a human fibroblast cell or a human keratinocyte cell. The computing device includes computer-readable instructions for accessing the plurality of instances and the skin aging gene expression signature stored on the computer readable medium, comparing each of the instances to the skin aging gene expression signature, and assigning a connectivity score to each of the instances based on the comparison.

Abstract: A system for identifying connections between a cosmetic agent and at least one gene associated with a skin aging condition. The system includes a computer readable medium having stored thereon a plurality of instances and a skin aging gene expression signature. Each instance comprises an ordered list of identifiers representing a plurality of differentially expressed genes generated as a result of contact between the cosmetic agent and a human fibroblast cell or a human keratinocyte cell. The computing device includes computer-readable instructions for accessing the plurality of instances and the skin aging gene expression signature stored on the computer readable medium, comparing each of the instances to the skin aging gene expression signature, and assigning a connectivity score to each of the instances based on the comparison.

Abstract: A method for making a skin care composition by identifying connections between cosmetic agents and genes associated with one or more skin aging conditions. The method includes accessing a plurality of instances and at least one skin aging gene expression signature, comparing the at least one skin aging gene expression signature to the plurality of the instances, assigning a connectivity score to each instance based on the comparison and incorporating the cosmetic agent into a skin care composition when the connectivity score of the instance associated with the cosmetic agent has a negative correlation.

Abstract: Provided are methods and systems for determining functional relationships between a cosmetic agent and a skin tissue condition of interest. Also provided are methods and systems for identifying cosmetic agents that affect a skin aging tissue condition, as well as the use of agents identified by such methods and systems for the preparation of cosmetic compositions, personal care products, or both.