The present invention relates to a composition for skin injection containing two or more cross-linked hyaluronic acid particles and non-cross-linked hyaluronic acid having different particle diameters. Satisfies the conditions of viscoelasticity and the deviation of the pushing force is small, so that the user does not feel fatigue when injecting the composition into the skin. In addition, it has excellent viscoelasticity and tissue repair ability, has a long duration, has a low initial swelling rate, has a fast recovery rate, and has excellent effects on internal safety and stability.本発明は、粒径が互いに異なる２以上の架橋ヒアルロン酸粒子及び非架橋ヒアルロン酸を含む皮膚注入用組成物に関し、本発明による皮膚注入用組成物は、皮膚注入のための粘度、押出力、及び粘弾性の条件を満たし、押出力の偏差が少なくて組成物の皮膚注入時にユーザーが疲労度を感じない。また、粘弾性及び組織修復能に優れており、持続期間が長く維持され、初期の腫れの程度が低くて回復速度が速く、体内安全性及び安定性に優れた効果がある。
