The invention discloses a sheep
embryo or sheep
placenta extract, a preparation method and application in
cosmetics. The preparation method comprises the steps that sheep embryos or sheep placentas are washed, chopped, extracted with an extraction
solvent and then stirred and homogenized at the temperature of 0-40 DEG C for 3-6 hours, the pH value is adjusted to be 4.9-5.0, and finally
centrifugation is conducted; supernatant liquid is obtained, the pH value of the supernatant liquid is adjusted to be 6.3-6.4, and heating treatment is conducted at the temperature of 55-65 DEG C for 8-12 minutes; homogenization,
centrifugation and heating treatment are conducted repeatedly 1-2 times, the treated matter is centrifuged, supernatant liquid is obtained and inactivated, the pH value is adjustedto be 7.0-7.4,
package processing is conducted by using an
ultrafiltration membrane, and after sterilization, the sheep
embryo or sheep
placenta extract is obtained. The sheep
embryo or sheep placentaextract extracted by using the method contains various
protein growth factors,
subcutaneous tissue growth and
metabolism can be promoted, therefore, the local microenvironment of the
skin is activated, the self growth and repair ability of the
skin is improved, and after the sheep embryo or sheep
placenta extract is added into the
cosmetics, the
cosmetics has obvious effects of whitening, brightening and moistening the
skin and resisting aging.