Collagen Peptides Blog
Explore practical guides, research updates, product insights, and clear advice about collagen peptides, skin support, side effects, and everyday use.
Collagen for Tendons and Ligaments: What the Studies Show, Including the Vitamin C Protocol
Collagen with training made tendons slightly larger, not stronger; a 2024 tracer study found no extra benefit. The vitamin C protocol, funding and what heals.
Collagen and Bone Density: What the Trials Show, Who Funded Them and What Works
In a 12-month trial, 5 g of collagen a day raised spine density about 3% while placebo lost 1.3%. All key trials were industry funded; none tracked fractures.
Collagen for Hair Growth: What the Evidence Says
No trial shows collagen alone grows hair. What the cited studies tested, why hair is keratin not collagen, when protein or iron matters, and what works better.
Heavy Metals in Collagen Supplements: What Testing Shows, What It Means Per Scoop, and How to Check a Product
Testing finds traces of arsenic, lead and cadmium in many collagen supplements, mostly below limits; 4 of 30 failed strict US thresholds. Per-scoop math.
Can You Take Collagen and Probiotics Together? Timing, Evidence and What the Gut-Health Claims Rest On
Yes: collagen and probiotics have no known interaction. What each does, how to time them, and the thin evidence behind collagen for gut health.
Collagen in Coffee: Does Heat Destroy It? The Temperatures, the Caffeine Question and How to Mix It
Hot coffee does not destroy collagen peptides: they are already hydrolysed and made at near-boiling temperatures. The caffeine study, add-ins and how to mix it.
Collagen Benefits for Men: What the Trials Run in Men Actually Show About Muscle, Tendons, Joints, Skin and Testosterone
Collagen for men: 15 g a day with training added muscle in trials run in men; 5 g helped Achilles tendons. Skin data is from women; no hormone or hair effect.
Bovine Collagen Peptides Explained: What They Are Made From, What the Trials Used, and How They Compare With Marine
Bovine collagen peptides: type I and III from cattle hide, 2 to 5 kDa, the form behind most skin, nail and joint trials. How made, safety, vs marine, labels.
Collagen Before and After: What Really Changes in Skin, Joints, Nails and Hair, and When, According to the Trials
A realistic collagen before and after: skin elasticity up ~7% at 8 weeks, joints by 12 to 24 weeks, nails by 6 months, no proven hair effect. Trial numbers.
Best Collagen for Women Over 60: What the Research Shows, What to Look For, and What It Won't Do
Best collagen for women over 60: hydrolyzed type I, 5 to 10 g a day, tested. What trials in older women show for skin, joints and bone, and what it cannot do.
Collagen and Vitamin C: Do You Need Both, and Do You Need Them Together?
You need vitamin C to make collagen, but not with your collagen scoop. How they work together, what the 2024 trial found, how much is enough, and who is short.
Grass-Fed Collagen: Does Grass-Fed Actually Matter?
Grass-fed collagen has the same amino acids as conventional, and no study shows it works better. What the label means, who checks it, and what to look for instead.
Multi Collagen Peptides: What the 5 Types Really Mean
Multi collagen blends list types I, II, III, V and X. What each type is, its source, what research shows, and whether a blend beats single-source collagen.
Collagen vs Collagen Peptides: What's the Difference?
Collagen peptides are collagen broken into small pieces so it dissolves and digests easily. How they compare with gelatin and type II collagen, and what to buy.
Marine vs. Bovine Collagen Peptides: Which Source Is Right for You?
Compare marine and bovine collagen peptides, including their sources, differences, dietary considerations, and how to choose the right option for your goals.
