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3 Red Flags In A Collagen Supplement You Shouldn't Ignore, From Experts

Jamie Schneider
Author: Expert reviewer:
December 13, 2021
Jamie Schneider
Former Senior Beauty & Lifestyle Editor
By Jamie Schneider
Former Senior Beauty & Lifestyle Editor
Jamie Schneider is the former Senior Beauty Editor at mindbodygreen. She has a B.A. in Organizational Studies and English from the University of Michigan, and her work has appeared in Coveteur, The Chill Times, and Wyld Skincare.
Ashley Jordan Ferira, Ph.D., RDN
Expert review by
Ashley Jordan Ferira, Ph.D., RDN
Former mbg Vice President of Scientific Affairs
Ashley Jordan Ferira, Ph.D., RDN is Vice President of Scientific Affairs at mindbodygreen. She received her bachelor's degree in Biological Basis of Behavior from the University of Pennsylvania and Ph.D. in Foods and Nutrition from the University of Georgia.
Image by Darren Muir / Stocksy
December 13, 2021

When choosing a collagen supplement, there's quite a checklist to inspect before nailing down your perfect formula. There's the source, excipients (or "other" ingredients), as well as some personal factors to keep in mind while you browse: age, sex, weight, activity level, and lifestyle habits can all play a role. 

Needless to say, everyone has a unique set of collagen criteria. However, there are some universal red flags to look out for on your search; these signs below can help you weed out some less than stellar formulas: 

1.

Vegan labels.

"Anything that is marketing itself as a 'vegan collagen' does not have collagen inside of it," says mbg's director of scientific affairs and in-house nutritionist Ashley Jordan Ferira, Ph.D., RDN, on the mindbodygreen podcast. "That would be like saying, 'Go drink some vegan bone broth'—it is not ever going to be vegan. Collagen comes from cows, chickens, and fish." 

You can, however, opt for vegan ingredients that can support your natural collagen health—like vitamins C and E for collagen synthesis or botanical antioxidants to protect the collagen you have from oxidative stress.* But the actual collagen itself, sorry to say, cannot be sourced from plants. 

You can also seek out brands that source collagen in a responsible and high-quality way (for example, we source ours from grass-fed, pasture-raised Brazilian cows), but if you see "vegan" plastered on a label, it's not a good sign. "Let's go ahead and bust the mythical unicorn that is 'vegan collagen.' It doesn't exist," adds Ferira. 

2.

A dose less than 10 grams. 

We don't exactly have a Recommended Dietary Allowance (RDA) or any status biomarkers when it comes to collagen, as you might for other nutrients or supplements. The science on oral collagen peptide supplementation is relatively young (we're talking two decades), and we can't recommend a specific dosage just yet: "We are learning in real time, which is honestly exciting and cutting-edge," says Ferira. 

As a result, you can find quite a range of doses; options may have anywhere from 40 milligrams to 20 grams of collagen per serving. But from the available research we do have, we support a range of 10 to 20 grams a day. Why? Well, take a look at some of the clinical research data: 

So if you do the math, a range of 10 to 20 grams would consistently hit all of these full-body benefits,* which is why we landed on 17.7 grams for our formula. "We don't mess around with potency here," Ferira says on the podcast. "There are products out there with 10 grams or less, sometimes 5 grams or less. That's not what we're doing here." 

3.

No vitamin C. 

A thoughtfully made collagen supplement should contain vitamin C. It's not a nice-to-have, like some other ingredients brands might fold in for extra beauty benefits (hyaluronic acid, biotin, and the like).* Rather, the antioxidant is actually a vital part of the collagen production process: "Vitamin C is a key cofactor in the synthesis of collagen and elastin, [which helps] give your skin that plump and youthful appearance,"* says Keira Barr, M.D., dual board-certified dermatologist. It's able to promote fibroblast production8, tend to collagen DNA, and regulate collagen synthesis9, or the pathway in which collagen is made.* 

Essentially, your body cannot effectively produce collagen without the antioxidant10,* and because many Americans aren't getting the recommended amount of this essential water-soluble micronutrient11, many experts encourage you to find a collagen powder that contains vitamin C already in the blend. Plus, vitamin C stabilizes the collagen you already have, thanks to its antioxidant properties that can help combat free radicals.* 

The takeaway. 

As collagen supplements continue to flood the beauty market, you might want to be cognizant of these few red flags. While everyone has different preferences (ingredients, form, etc.), it's important to wade through the marketing language so you know, exactly, what you're getting out of your collagen. 

If you are pregnant, breastfeeding, or taking medications, consult with your doctor before starting a supplement routine. It is always optimal to consult with a health care provider when considering what supplements are right for you.

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