PURPOSE: A natural pack composition is provided to contract skin pores and to enhance moisturizing and anti-inflammatory effects and immunity. CONSTITUTION: A pack composition for contracting pores contains Grateloupia asiatica extract and Grateloupia lanceolata extract. A pack composition for skin moisturization contains 10-15% of Grateloupia asiatica extract, 0.1-5% of Grateloupia lanceolata extract, 0.1-5% of Sargassum miyabei extract, or 0.1-5% of Sargassum fulvellum extract. The pack composition also contains 0.1-5% of Hizikia fusiforme, 30-50% of Ecklonia cava extract, and 5-15% of Ulva pertusa extract.본 발명은 팩조성물에 관한 것으로, 보다 상세하게는 제주도의 천연자원 중 해조류를 이용하여 모공을 수축할 뿐만 아니라, 피부보습 이 뛰어나고, 항염 및 면역력을 높일 수 있는 천연 팩 조성물을 제공함에 있다.