Tip to decrease roughness and darkness of elbows and knees

Take one summer squash, remove the peel and seeds then make it into paste.

Add buttermilk in it.
Then add rock salt.
Mix well with blender.
Then take warm water bath. This will allow opening of sweat pores.
Now apply the pre prepared mixture over elbows and knees and rub gently for 3 to 4 minutes.
Wash after that.
Salt and lactic acid in butter milk will help for removal of dead skin cells and squash helps in nourishing the skin.