Peptide with anti-aging effect and use thereof

A peptide consisting of a partial sequence of an amino acid sequence ELKLIFLHRLKRLRKRLKRK (SEQ ID NO:

• 1) and having one or more effects selected from the group consisting of promoting fibroblast growth, promoting hyaluronic acid production and contracting a collagen gel, or a derivative or salt of the peptide,
• the partial sequence consisting of 4 to 10 contiguous amino acids of the amino acid sequence,
• the derivative having a modification selected from C-terminal amidation or esterification, protection of an N-terminal amino group with a protecting group, protection of a substituent on an amino acid side chain in the molecule with a protecting group, a combination of C-terminal amidation or esterification and protection of an N-terminal amino group with a protecting group, a combination of C-terminal amidation or esterification and protection of a substituent on an amino acid side chain in the molecule with a protecting group, a combination of protection of an N-terminal amino group with a protecting group and protection of a substituent on an amino acid side chain in the molecule with a protecting group, and a combination of C-terminal amidation or esterification, protection of an N-terminal amino group with a protecting group and protection of a substituent on an amino acid side chain in the molecule with a protecting group.