The world of beauty is not shy of using out-of-the-box ingredients to bring back one’s youthful glow. In fact, sometimes they take pushing the envelope too far, what with snail slime, pig collagen, and bull semen being used as beauty solutions across the globe. The latest to join the wagon are products made from donkey milk and horse oil (oil from animal fat).

According to Alicia Yoon, a Harvard Business School graduate and co-founder of the Korean beauty website Peach and Lily, animal-based products are the newest skincare trends in South Korea, particularly donkey milk and horse oil.

Apparently, donkey milk contains almost five times more vitamin C than regular milk, and is said to improve skin elasticity; the horse oil on the other hand is known for its healing properties and moisturizing capabilities.

She further explained that donkey milk is known to be gentle and soothing for those with sensitive skin and eczema. As for horse oil, it is known to be a sterilizing agent and has amazing absorption capabilities.

“I find that the major beauty brands are careful about launching anything too zany because, perhaps historically, American women would rather stick to more known ingredients like retinol and vitamin C,” said Yoon; nevertheless, she suspects in time, this beauty trend will travel to the States too.

Charlene Flanagan is a lifestyle journalist whose love for language drove her to earn her Bachelor’s degree in English literature, as well as pursue her Masters in Arts. Over the last five years, she’s contributed to a number of leading publications, and has particularly enjoyed reviewing books and restaurants, as well as interviewing celebrities. Her recent switch to a holistic lifestyle has her looking at her food choices very differently—although she won’t admit it. When she’s not busy writing up about workouts, home remedies, and skincare essentials, she spends her time being the quintessential city girl who’s excited to see what life has in store for her.