Halle Berry says she swears by collagen to keep her skin and hair youthful and healthy

• Halle Berry told Insider her favorite supplement is collagen.
• Collagen is a protein that occurs naturally in the body and has purported skin, hair, and nail benefits.
• The 54-year-old takes her collagen in the form of bone broth, either homemade or from a powder.

Halle Berry told Insider she swears by collagen for staying youthful and healthy.

When asked what her favorite supplement is, the 54-year-old actor said: "Collagen, collagen, and more collagen!"

Collagen is a protein that occurs naturally in the body, and it's growing increasingly popular as a supplement - the global collagen market is expected to reach $7.5 billion by 2027, an increase from $4.7 billion in 2020, a Grand View Research Report said.

Collagen brands typically list benefits including better skin, hair, nails, and joints, though there is little robust evidence to support those claims.

Berry, however, has raved about it for years.

Halle Berry drinks collagen-rich bone broth

A long-time follower of the high-fat low-carb keto diet, Berry has previously said she takes her collagen in the form of bone broth.

"You can make it, you can go to the butcher and get all the bones they're going to throw away and he'll give them to you for free," Berry told Extra in 2018. "Take the bones, boil them up for 24 hours … and you drink the broth. It's so full of collagen that it's crazy."

Berry doesn't always make her own bone broth from scratch, sometimes opting for store-bought mixes.

"But I also have a pot of bone broth going because I think it's an easy thing to do, put it in the pan and not think about it, and then have this miracle juice," she said in a 2020 IGTV video. "Either way is good."

Berry told Insider she also keeps her skin healthy with a good skincare regime, always using a vitamin C toner face peel, sleeping mask, and the Flawless Cleanse brush.