Disclosed is a benefit agent delivery particle comprising a benefit agent and a chitosan salt on the outer surface of the particle, wherein the chitosan salt comprises a chitosan component and an amino acid anion, the amino acid comprises phenylalanine, the amino acid comprises no tyrosine, and The amino acid does not contain histidine or the amino acid contains histidine of 20 mol% or less of the total amino acid, and the beneficial agents are fragrance, pro-fragrance, hair conditioning agent, anti-dandruff agent, moisturizer, emollient, dye, pigment, color Contains care additives or mixtures thereof.有益剤と、粒子の外表面にキトサン塩とを含む有益剤送達粒子が開示され、ここでキトサン塩はキトサン成分とアミノ酸アニオンとを含み、アミノ酸はフェニルアラニンを含み、アミノ酸はチロシンを含まず、さらにアミノ酸がヒスチジンを含まないか、アミノ酸が全アミノ酸の２０モル％以下のヒスチジンを含み、有益剤はフレグランス、プロフレグランス、ヘアコンディショニング剤、ふけ防止剤、保湿剤、皮膚軟化剤、染料、顔料、カラーケア添加剤またはそれらの混合物を含む。
