PURPOSE: A peptide composite for skin whitening having stem cell proliferation promotion function is provided to display skin melanin excessive generation suppressive effects caused by external factors like ultraviolet ray. CONSTITUTION: A peptide composite comprises an active ingredient which is composed of a recombinant human epidermal growth factor, copper-Gly-His-Lys, palmitoyl -Lys-Thr-Thr-Lys-Ser, and Arg-Arg-Gln-Met-Glu-Gluacetyl. A cosmetic composition for skin whitening improvement comprises an active ingredient consisting of the recombinant human epidermal growth factor, copper tripeptide, palmitoyl pentapeptide, and acetyl hexapeptide. The recombinant human epidermal growth factor, copper tripeptide, palmitoyl pentapeptide, acetyl hexapeptide are included as a mass rate of 2:100:1:500. 0.001-1% of the active ingredient which is composed of the recombinant human epidermal growth factor, copper tripeptide, palmitoyl pentapeptide, and acetyl hexapeptide is included based on the total weight of an external use medicine. [Reference numerals] (AA) Melanin synthesis suppression effects (BB,DD) Negative control group (CC,EE) Albutin본 발명은 피부 미백용 조성물에 관한 것으로서, 본 발명에 따른 피부 미백용조성물은 인간 표피 성장 인자(Human Epidermal Growth Factor), 코퍼 트리펩타이드(Copper-Gly-His-Lys), 팔미토일 펜타펩타이드(팔미토일-Lys-Thr-Thr-Lys-Ser), 아세틸 헥사펩타이드(Arg-Arg-Gln-Met-Glu-Glu-acetyl)를 유효 성분으로 포함하는 것을 특징으로 한다.
