collagenThe journal
Read before
you buy.
Plain-language guides on collagen types, doses and labels — what the research supports, and where the marketing runs ahead of it.
Hydrolyzed Collagen vs. Gelatin: What’s the Difference?
Same protein, different processing. Here is when gelatin is the cheaper, smarter choice — and when collagen peptides are worth paying for.
Marine vs. Bovine Collagen: What’s Actually Different?
Fish or cattle? The real differences come down to collagen types, diet, allergies and price — not miracle absorption.
Best Time to Take Collagen (and Does It Even Matter?)
Morning, night, empty stomach, before the gym? What research says about timing — and the one habit that matters far more.
Collagen Side Effects: What to Expect and Who Should Be Careful
Collagen is well tolerated by most people, but bloating, allergies, extra ingredients and certain health conditions are worth…
Collagen Types I, II and III Explained (Without the Jargon)
Labels love to list collagen “types”. Here is what Types I, II and III really mean and which ones matter for skin, joints and…
Collagen and Vitamin C: Do You Need to Take Them Together?
Vitamin C is essential for making collagen. But do you need a combo product, or is your breakfast enough? A plain-language answer.
Collagen for Hair Growth: What the Evidence Really Shows
Collagen is sold for thicker, faster-growing hair. Here is what is known, what is marketing, and the causes of hair loss worth…
How Much Collagen Should You Take Per Day?
Studies used anywhere from 40 mg to 15 g a day depending on the goal. Here is how to match the dose on the label to what research…
Collagen for Nails: Can It Help Brittle Nails?
Nails are one area where a small collagen study showed promising results. Here is what it found, its limits, and other fixes for…
Collagen Peptides vs. Whey Protein: Which One Do You Need?
Both are protein powders, but they do different jobs. Whey builds muscle; collagen targets connective tissue. Here is how to…
How to Read a Collagen Supplement Label
Five lines on the Supplement Facts panel tell you more than any marketing claim. Here is what to look for — and what to ignore.
Bone Broth vs. Collagen Powder: Which Gives You More?
Bone broth is the traditional way to get collagen. But how much does a cup actually contain compared with a scoop? The answer may…