The Truth About Drinking Collagen for Better Skin

Do a quick search for "drinkable collagen" on Amazon and more than 300 results materialize. Many products feature not only confident seller claims that they can improve skin elasticity and firmness but also enticing reviews from people confirming, as far as they can tell, that their collagen supplements did exactly that. The powders and liquids seem like a tempting, easy, and sometimes even tasty way to enhance your skin-care routine's results. But is better skin really possible via sprinkling some seemingly magical collagen fairy dust into your coffee?

In theory, the thought of tossing back a collagen drink for healthier, firmer, more resilient skin sounds worthy of writing home about — not to mention worthy of your hard-earned money. And there's no doubt, collagen does have its benefits. But it begs the all-too-obvious question: Does drinking collagen or taking it as an oral supplement (like a collagen pill) actually work to improve your skin? And if so, what does collagen actually do for your face? Allure consulted experts to get to the bottom of ingesting collagen before you say "bottoms up" to a glass of the stuff.

Meet the Experts

• Joshua Zeichner, M.D., a board-certified dermatologist and director of cosmetic & clinical research in dermatology at Mount Sinai Hospital in New York City. 
• Yoon-Soo Cindy Bae, M.D. a board-certified dermatologist at Laser & Skin Surgery Center of New York and clinical assistant professor of dermatology at New York University in New York City.   
• Keri Gans, a registered dietician and nutritionist in New York City.

What is collagen and what does it have to do with skin?

"Collagen is the main structural protein in our skin," says New York City-based board-certified dermatologist Joshua Zeichner, M.D. He likens collagen to a mattress frame because, without it, the skin starts to break down — like a mattress without a frame would — resulting in fine lines and sagging.

This process is inevitable as we age because the collagen in our bodies decreases the older we get, thanks in part to environmental factors, such as sun exposure and pollution. In addition to our skin, New York-based board-certified dermatologist Yoon-Soo Cindy Bae, M.D., says that collagen is found all throughout the body, although she explains that there are several different types such as I, III, IV, and VII, that are located in the skin itself.

"[These types] are integral for the structure and function of the skin," she says. Types I, II, and III, for instance, account for 80 to 90 percent of collagen in the body, so it makes sense that they would be integral to the skin's health considering it's our largest organ. Type I is the most abundant of them all and one of the main components of our connective tissue, while II is mostly found in cartilage and the eyes, and III in the skin, muscles, and blood vessels.

How can you ingest collagen?

Ingestible collagen supplements, such as the kind you can pour into coffee or any beverage of your choice, began surfacing just a few years ago, with wellness brands and influencers chalking the powders up as a new miracle treatment for skin, hair, and joint health. As of right now, there are two main types on the market: marine collagen, generally from fish, and animal collagen, which can come from cows and pigs, for example. The collagen is found in the bone and tissues of these animals.

Most of the supplemental collagen is formulated in powder form, while some others come liquified to drink. Pills and gummies are popular, too. If this all sounds familiar, chances are it's because you've seen ads about collagen floating around on the Internet and social media, as the beauty supplement market, which includes ingestible collagen, has utilized countless influencers who post about their alleged benefits on Instagram.

All this to say: It's important to take these reviews with a grain of salt, keeping in mind that while these people might very well be sharing their honest experiences, it's not the same as legitimate experts speaking to collagen's efficacy.

Does drinking collagen work to improve skin?

Experts say it's unlikely — especially without evidence. "Despite popular belief that collagen supplements can help strengthen our skin, we have little data to truly support this," says Dr. Zeichner. "Collagen is a large molecule that is digested by our intestines into smaller pieces when taken by mouth, so when we ingest powders or supplements, our skin is not seeing the full collagen molecule, but rather protein fragments or individual amino acids." In other words, you're not reaping the full benefits of the collagen molecule because it's broken down in the body so much first.

In addition, New York City-based registered dietician and nutritionist Keri Gans brings up the flawed notion that by drinking collagen, it instantly goes to your face, thus improving the skin there. "[Collagen] doesn't know where to go in your body," she says, "It's not like that."

Gans adds that the anecdotal evidence seen in the review sections on sites like Amazon tell us very little, as she explains that people are constantly changing up their lifestyle habits (i.e. exercising more, eating better, and etc.), which she says makes it impossible to tell whether collagen is the actually skin-improving culprit.

Based on the experts we chatted with, it's clear that there needs to be more scientific evidence on collagen (and how it benefits the skin). That said, take these "benefits" with some reservations because at the end of the day, they are simply marketing claims.

"[One thing] we know is that hydrolyzed collagen has antioxidant properties, so that can be beneficial, though the effects specifically on the skin remain unknown," she says. "This is why prospective clinical trials need to be conducted to evaluate their role."

Are collagen supplements safe?

Collagen supplements are most likely safe, yes, but if it's results you're after, Dr. Zeichner recommends topical treatments — as opposed to ingesting collagen — to really see a difference. But that doesn't mean literally applying collagen topically, even though there are plenty of topical products that feature it as an ingredient. Instead, look to products with ingredients known to improve your own collagen. "Until we have more data, I still recommend traditional collagen-strengthening treatments like topical retinol," he says.

Bottom line: While consuming collagen is typically safe, there's currently no way to tell whether it can strengthen and benefit the skin until more solid clinical evidence is conducted. In the meantime, talk to your dermatologist to find out if you should start incorporating retinol products into your skin-care routine. After all, retinols are proven to help smooth fine lines and clear up breakouts.

Now read about more beauty myths:

• 11 Retinol Myths That Derms Want You to Stop Believing
• Is the Concept of "Beauty Sleep" Really a Myth?
• 5 Vitamin D Myths to Stop Believing Now

Done reading? Now check out Karrueche Tran's 10-minute beauty routine :

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