| abstract |
In this specification, an anti-aging composition comprising an extracellular vesicle, which is a complex physiologically active substance derived from lactic acid bacteria, as an active ingredient is disclosed. The extracellular vesicle may be an exosomal-like bezex having a diameter of 20 to 200 nm. The composition may inhibit the expression of MMP-1 protein, thereby improving skin wrinkles, enhancing skin elasticity, inhibiting collagen reduction, Lt; / RTI > |