Quick answer: collagen supplements are proteins. Your body digests them into amino acids and small peptides before absorption, and studies on skin and joints used 2.5 to 10 grams a day of hydrolysed collagen peptides. That amount cannot practically fit into liposomes in a typical serving, and there is no good evidence that “liposomal collagen” works better than ordinary collagen peptide powder. If you want to support collagen, focus on enough protein and vitamin C.
What collagen is
Collagen is the most abundant protein in the body, forming the structure of skin, tendons, ligaments, cartilage, bone and blood vessels. Your body makes it from amino acids, especially glycine, proline and hydroxyproline, with vitamin C as an essential helper. Collagen production slows with age, and sun exposure and smoking damage existing collagen.
Types of collagen supplements
- Hydrolysed collagen (collagen peptides): collagen broken into small peptides; dissolves in drinks; used in most studies.
- Gelatin: partially broken-down collagen; gels when cooled.
- Undenatured type II collagen: taken in small milligram doses for joints and thought to work through the immune system rather than as building material.
- Liposomal collagen: usually small amounts of collagen peptides in a liposomal liquid; little or no published human data.
Why liposomal delivery doesn’t fit collagen well
Liposomes are useful for protecting fragile molecules and helping small amounts of poorly absorbed compounds cross the gut wall (see Liposomal Absorption Explained). Collagen is different:
- Digestion is the point. Collagen peptides are meant to be broken down; some small collagen-derived peptides such as prolyl-hydroxyproline are absorbed and detected in the blood after ordinary collagen powder.
- The dose is large. Research used grams per day. A liposomal serving typically holds hundreds of milligrams of active ingredient at most.
- Cost. Plain collagen peptide powder is one of the cheapest ways to get the studied dose.
When a product says “liposomal collagen,” check how many milligrams of collagen it actually contains per serving and compare with study doses.
What collagen research shows
- Skin: a number of randomised trials and meta-analyses report modest improvements in skin hydration and elasticity with 2.5 to 10 g a day of collagen peptides over 8 to 12 weeks. Many studies are industry-funded, and results vary.
- Joints: some trials suggest small improvements in joint discomfort in athletes or people with osteoarthritis; evidence is mixed.
- Bone, muscle, hair, nails: early or limited evidence.
What actually supports your collagen
- Enough protein from a variety of foods.
- Vitamin C, which your body needs to build stable collagen. See vitamin C guide.
- Sun protection every day, the most proven way to protect skin collagen.
- Not smoking.
- Resistance exercise for tendons, bones and muscle.
Choosing a collagen supplement in Canada
- Look for hydrolysed collagen peptides and the grams per serving.
- Check the NPN if the product makes health claims (how to check).
- Note the source (bovine, marine, chicken) for allergies and dietary choices; collagen is not vegan.
- Compare price per 10 g serving.
Safety
- Collagen peptides are generally well tolerated; some people report fullness or mild stomach upset.
- Marine collagen may not suit people with fish allergies.
- People on protein-restricted diets (for example with advanced kidney disease) should ask their doctor.
Frequently asked questions
Is marine collagen better than bovine?
Both provide similar amino acids. Choose based on dietary preferences, allergies and price.
Do vegan collagen products exist?
True collagen comes only from animals. “Vegan collagen” products usually contain amino acids and vitamin C intended to support your own collagen production.
Sources
- de Miranda RB, et al. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. International Journal of Dermatology, 2021.
- National Institutes of Health, Office of Dietary Supplements. Vitamin C fact sheet.
- Health Canada. Licensed Natural Health Products Database.
This article is for general information only and is not medical advice. See our medical disclaimer.
