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Collagen 101:All Basics about Collagen
Collagen seems to be talk of town everywhere these days. Many Beauty magazines tell us that it’s the new secret to glowing skin, lustrous hair and unbreakable nails. Sports enthusiasts tell us that it can enhance our workout while reducing joint pain. Diet enthusiasts tell us it might even help with weight loss.
A simple trip to the drug store yields Collagen products across every aisle, from face creams to powders and protein bars.
But what is collagen? And, why are some talking about it as the modern-day fountain of youth?
This article provides the basics about this important protein and reviews some of the initial, promising research on collagen supplements, as well as some of the claims that aren’t supported by current evidence.
What is Collagen Made up of?
Collagen is a type of protein that is found throughout the human body. It’s actually the most abundant protein in humans, making up 75 percent of the skin’s dry weight and 30 percent of our body’s total protein mass. Collagen itself is made up of amino acids, most notably glycine, proline and hydroxyproline. It is a key component of the connective tissues that make up our skin, bones, cartilage, tendons, and other tissues. Collagen is the most abundant protein in the body, making up about one-third of our total protein mass.
The primary function of collagen is to provide structure and support to tissues, allowing them to maintain their shape and integrity. It is also important for maintaining the elasticity and strength of the skin, and for promoting healthy bones and joints. Collagen is a crucial component of the extracellular matrix, which is the network of proteins and other molecules that surrounds cells and provides a framework for their activities.
Collagen is made up of long chains of amino acids that are arranged in a unique triple helix structure. There are many different types of collagen, each with its own unique properties and functions. For example, type I collagen is found in skin, tendons, bone, and other connective tissues, while type II collagen is found in cartilage. Other types of collagen are found in blood vessels, organs, and other tissues throughout the body.
As we get older, our bodies naturally produce less collagen and sun damage can further decrease our collagen production. This decrease in collagen may account for some of the classic signs of aging in many people — like loss of muscle tone, sagging skin or wrinkles, joint pain, and osteoporosis. To combat this decline, many people take collagen supplements or use skincare products that contain collagen to help promote healthy skin and joints.
Why Are People Supplementing with Collagen for Beauty Purposes?
Even in the crowded field of vitamins and supplements, it seems like collagen is getting all the attention with headlines touting its benefits and celebrities hyping their favorites on social media. And, products made from or with collagen aren’t limited to pills, powders or skin creams — there are pillow cases, clothing and even a Japanese beer.
If the celebrity hype isn’t convincing enough, just look at the Google data. The number of people searching Google to learn more about collagen has more than tripled in the last three years, and it doesn’t appear to be slowing down any time soon.
All of this attention may not just be attributable to social media influencing, however.
As it happens, there is some evidence suggesting that taking collagen supplements may help promote glowing skin, lustrous hair and strong nails, as well as support the health of joints and muscles.
However, there’s also a lot we don’t know — or at least haven’t studied — about collagen yet, and we think it’s important to go over stuff, too.
Collagen Supplements Can Promote Your Skin’s Natural Glow
Good skin is one of those things that’s hard to explain, but we know it when we see it. A lot of us are seeking ways to improve the glow of our skin.
When researchers try to quantify the things that make skin look good, some of the things they look for include elasticity (its ability to go back to normal after its been stretched), hydration or moisture, roughness and wrinkles (some studies actually measure the depth of wrinkles).
One study evaluated the effects of taking a collagen supplement on various age-related skin factors. Sixty-nine women ages 35 to 55 took either a 2.5g or 5g collagen supplement or a placebo once a day for eight weeks. At the end of the study, the skin of the group taking the supplement had improved skin elasticity compared to the placebo group.
Another study gave participants — 64 women aged 40 to 60 — a 1g collagen supplement or placebo once daily for 12 weeks and found that participants who took the supplement had significantly higher skin-hydration values after six weeks, and improved overall elasticity and skin wrinkling after 12 weeks vs. the placebo group. At the end of the study, the supplement group also scored higher on a visual assessment of skin wrinkling.
The results of two clinical trials published together also measured skin hydration and added a measure of collagen density in the skin after eight weeks of supplement use. It found improvements in both for participants who were given a supplement compared to those who took a placebo.
Collagen Supplements May Promote Shiny Hair and Strong Nails
There’s some emerging research out there that indicates Collagen supplements may help keep your hair looking lustrous and shiny, and your nails strong. While more research is needed before any conclusions can be drawn about how collagen supplements may improve hair and nail health, the evidence is promising.
One study enrolled 15 women with self-perceived hair thinning. They were randomly assigned to take a collagen supplement or a placebo twice a day for six months.
At the end of the study, participants in the collagen supplement group reported having shinier hair and bonus improvements to their skin as well.
In another study that focused on nails, twenty-five participants took a 2.5g collagen supplement daily for six months. At the end of the study, doctors examined the participants and found an overall improvement in participants’ nails. The researchers concluded that the supplement increased nail growth by 12 percent and decreased the frequency of breakage by 42 percent. It is important to note, however, that there was no placebo group in this study for comparison.
Collagen Supplements May Support Joint and Muscle Health
Collagen supplements may complement our exercise routine in addition to our beauty rituals. Research suggests that they may support joint and muscle health.
In a 2006 study from Penn State University’s Department of Nutrition and Sports Nutrition for Athletics, researchers looked at 147 student athletes who were considered “high-risk” for joint deterioration.
The 24-week study showed that athletes who took a 10g dietary collagen supplement daily showed a statistically significantly lower risk of joint pain at rest, when walking, when standing, when carrying objects and when lifting as compared to a placebo group.
Another study tested dietary collagen’s potential effects on muscle recovery. In a group of 20 men who took 20g of collagen peptides daily, researchers observed moderate muscle recovery and improved soreness within 48 hours following exercise. Not bad, collagen. Not bad.
So, there you have it.
Collagen. It’s a naturally occurring protein that the body makes to help keep our body’s connective tissues in good working order.However, as we age, our body’s natural collagen production decreases, making our bodies more prone to injuries and other unfortunate signs of aging.
In recent years, we’ve seen a rise in the popularity of collagen supplements and cosmetics. These products come in all types of powders, pills, creams and balms Collagen supplementation has been shown to provide some legitimate benefits that include promoting skin, hair and nail health, and supporting muscle and joint health.
However, as with most other health supplements, not all the claims made about collagen are supported by research, and you should be aware of them before you decide to buy into it.