"Selling Sunset" Star Chelsea Lazkani on the $770 Splurge She Uses Daily

Lazkani swears by one supplement in particular: the Armra Colostrum ($109). After experiencing bloating for the last eight months, "I started taking Armra [and] I don't suffer from bloating anymore, I sleep like a baby, and my skin is the clearest it's ever been," she says.

A few small studies have shown that colostrum, which is the first form of milk that comes from mammals after birth, may help with digestive health and muscle repair, but more research is needed to definitively show that the supplement is beneficial to our health in general.

Pro tip: She likes to eat a scoop of the powder dry, but you can also mix it with liquid or yogurt. As with any supplement, you'll want to consult with your doctor before trying it to see if colostrum is something you can safely incorporate into your diet.