PST-Cell, a substance contained in Oshiaree Plant Stem Cell line, is mainly from stem cell extract by squeezing plant stem cells at low temperature and contains large amount of various growth factors in the stem cells.Peptides are a major component of that involves anti-ageing treatment, consisting of two or more amino acids and having the same chemical structure as proteins. Peptides have similar skin care effects to hyaluronic acid or collagen, both of which are powerful moisturizers.