Collagen built its reputation on beauty—but its role in the body goes far deeper than skin. From skin and joints to bones, muscles and connective tissue, collagen plays a remarkable role throughout the body. So what happens when we supplement it? We dug into the science, the benefits, and what separates one collagen supplement from another.
COLLAGEN’S ROLE IN THE BODY AND WHY LOW LEVELS CAN BE DANGEROUS
Often described as the “glue” that holds the body together, collagen provides essential strength, elasticity and structural support throughout the body—including vital organs, arteries, veins, capillaries, bones, muscles, tendons, ligaments and, yes, skin.
Natural collagen levels can be compromised by a variety of factors, including UV exposure, smoking, inadequate nutrition and age. Low collagen levels have been linked to:
- Weakened cardiovascular system: Loss of blood-vessel strength and elasticity can contribute to fragile capillaries, frequent bruising and blood pressure issues.
- Joint and bone degradation: Deteriorating cartilage and weakened bone structure can lead to joint stiffness, chronic pain and increased fracture risk.
- Digestive tract issues: Changes to the collagen-rich intestinal lining have been associated with increased permeability, inflammation and painful bloating.
- Visible aging and slow healing: Declining structural support can mean sagging skin, deeper wrinkles, brittle hair and nails, and slower wound healing.
Supporting healthy collagen levels is only half the equation. At least 28 types of collagen have been identified, with Types I, II, III, V and X among those commonly found in supplements—and different types, sources and formulations serve different purposes.
Our Pick: Terranics Multi Collagen Peptides →
Why it made the cut—and the major brands that didn’t—below.
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AFTER FIVE YEARS OF TRYING COLLAGEN SUPPLEMENTS, HERE’S WHY WE’VE PURCHASED TERRANICS 20+ TIMES
We’ve spent five years trying collagen supplements—including most of the biggest brands in the category. Across every comparison and new product we’ve tested, we’ve purchased Terranics Multi Collagen Peptides more than 20 times. Here’s what keeps it at the top of our list:
- 5 collagen types: I, II, III, V + X
- 4 different sources: Bovine, chicken, fish + eggshell membrane
- Hydrolyzed collagen peptides
- Third-party tested for purity + potency
- Non-GMO + gluten-free
- No soy, dairy, artificial additives or preservatives
- Made in the USA
For comparison, Vital Proteins Collagen Peptides—the brand practically synonymous with collagen—ONLY provides Types I and III from a single bovine source. Terranics provides five types from four different sources.
VEGETARIAN OR VEGAN? THERE’S A COLLAGEN ALTERNATIVE
True collagen is animal-derived, but plant-based formulas can provide the nutrients your body uses to produce its own. Our vegan pick: Sunwarrior Collagen Building Protein Peptides.
Shop Sunwarrior Collagen Building Protein Peptides →
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HOW TO ADD COLLAGEN TO YOUR ROUTINE
One of collagen’s biggest advantages is how easily it disappears into foods and drinks you already consume. No complicated routine required.
- Morning coffee: Stir it directly into your cup.
- Evening hot tea: An easy way to work collagen into a nighttime routine.
- Smoothies: Blend it in with everything else.
- Oatmeal: Mix it in after cooking.
- Yogurt: Stir it straight into the bowl.
- Water or other drinks: Mix thoroughly and give it a moment to dissolve.
Our best mixing trick: For cold foods and drinks, dissolve the powder in a small amount of warm liquid first, then add it to the rest. It helps prevent stubborn clumps.
Consistency matters more than timing. Morning, afternoon or evening—use it whenever you’re most likely to remember it.
The collagen we’ve purchased 20+ times:
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