Fermentation extracts, cosmetic composition and manufacturing method of fermentation extracts

A manufacturing method of a fermentation extract using dual low-temperature extraction and liposomization, the method comprising:

• a step of producing a liquid collagen extract at a first low temperature by mixing collagen powder, butylene glycol, and purified water at a preset ratio;
• a step of producing a liposomized glutathione liquid dispersion by mixing and stirring purified water and glutathione powder at a preset ratio;
• a step of producing a Lactobacillus fermentation filtrate obtained by mixing purified water, a Lactobacillus fermentation solution, and glycerin at a preset ratio and fermenting;
• and
• a step of producing a fermentation extract by stirring and extracting a glutathione liquid dispersion liposomized using a liquid collagen extract as a solvent and a Lactobacillus fermentation filtrate at a second low temperature which is different from the first low temperature.