Sundays are cooking days in Kate Ansari's Fulton home.
Ansari and her sister, Emily Derr, start around the kitchen island, pulling their main ingredients from nearby cabinets: coconut oil, arrowroot powder and bitter almond oil.
Then, wearing aprons and yoga pants, they start mixing. Add some shea butter here. Add some avocado oil there.
"It takes over this whole space, and it's a huge mess," Ansari said.
But given the all-natural ingredients, it's a mess the sisters said they love to make.
Ansari, 30, and Derr, 27, of Chevy Chase, are founders of Dear Baby Products, a line of handmade skin care items for babies and women. Products range from baby...