The present invention is related to a peptide for promoting hair growth, composition containing the same and application of the peptide. The peptide of the present invention has smaller molecular size, therefore not only can improve the uptaking efficiency for follicles, but also can easily be prepared by bio-chemical synthesis. The composition of the present invention consequently has the advantage of fewer side effects and avoids the risk of instability between batches.本發明關於一種促進生髮的胜肽、含其之組合物及使用該胜肽以促進生髮的方法。本發明之胜肽由於分子較小,不僅可提高毛囊的吸收效率,更可簡易地以生化合成的方式製備。因此本發明之組合物具有低副作用的優點,更避免了批次間不穩定的風險。