The present invention relates to a method for manufacturing a marine cosmetic composition for skin care, comprising the steps of: preparing marine collagen, purified deep sea water, and a spicule extracted from marine plants; preparing a cosmetic composition by mixing a plant extract fermentation liquid including a human adipose stem cell culture fluid; and preparing a cosmetic composition by mixing an additive mixture. The present invention also relates to a marine cosmetic composition for skin care manufactured thereby.;COPYRIGHT KIPO 2019
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