Body for protecting the surface composition having excellent functional decline effect of preventing and promoting the recovery of the barrier function of the skin and hair containing at least one of the multi-chain multi-hydrophilic group-containing compound having at a time two or more in the molecule and the hydrophobic and hydrophilic groups thing疎水基と親水基とを分子内に2個以上づつ有する多鎖多親水基型化合物の少なくとも1種を含有する皮膚および毛髪のバリア機能の回復促進および機能低下防止効果に優れる身体表面保護用組成物