The invention provides an external composition for reducing and repairing
striae gravidarum and
scars as well as gel and application of the external composition, and relates to the field of scar repair. The external composition is prepared from the following raw materials in parts by weight: 23 to 28 parts of herba lysimachiae, 15 to 25 parts of pine nodular
branch, 10 to 20 parts of
radix rehmanniae preparata, 7 to 12 parts of caulis sargentodoxae, 5 to 10 parts of rhizoma polygonati and 3 to 8 parts of folium artemisiae argyi. The preparation method comprises the following steps: S1, selecting traditional Chinese medicinal materials of
radix rehmanniae preparata, rhizoma polygonati and folium artemisiae argyi, adding 8-12 times by weight of water, decocting, filtering to obtain a decoction, and concentrating to obtain a composition I; s2, selecting traditional Chinese medicinal materials such as
Sargentodoxa cuneata, sargentgloryvine stem and pine nodular
branch, extracting by using 70-75% v / v
ethanol solution at the extraction temperature of 50-60 DEG C to obtain extract liquid, and concentrating to obtain a composition II; s3, mixing the composition I in the step S1 and the composition II in the step S2 to obtain the target composition. The
traditional Chinese medicine composition has a synergistic effect, has a remarkable
curative effect on reducing and repairing
striae gravidarum and
scars, is good in safety and can be applied to preparation of products for reducing and repairing
striae gravidarum and
scars.