Collagen
Also known as: Hydrolyzed Collagen, Collagen Peptides, Type I Collagen, Type II Collagen, Marine Collagen
The structural protein of skin, joints, tendons, and bone — hydrolyzed collagen peptides have clinical evidence for joint pain and skin elasticity.
What it is
Collagen is the most abundant structural protein in the body, comprising approximately 30% of total body protein. It provides tensile strength to skin, tendons, ligaments, cartilage, and bone. Type I collagen is the most prevalent (skin, tendons, bone), while Type II is specific to cartilage. Collagen production declines approximately 1% per year beginning in the mid-twenties. Hydrolyzed collagen (collagen peptides) is predigested into small peptides that are absorbed intact and stimulate fibroblast activity.
How it works
Contrary to general protein supplementation, specific collagen peptides (particularly those from Peptan® or FORTIGEL®) appear to reach connective tissues and trigger fibroblasts and chondrocytes to increase their own collagen and proteoglycan synthesis — a targeted signaling effect not seen with other protein sources. Vitamin C is a required cofactor for collagen synthesis — the enzyme prolyl hydroxylase that creates the collagen triple helix requires ascorbic acid.
Clinical dose range
5–15 g/day
Skin benefits: 2.5–10 g/day hydrolyzed collagen peptides. Joint pain/cartilage: 8–15 g/day (or 40 mg Type II collagen). Take with vitamin C to maximize collagen synthesis. Some evidence that consuming collagen 30–60 minutes before exercise (with vitamin C) increases collagen synthesis in connective tissue.
Forms comparison
What to look for on the label
- Hydrolyzed collagen peptides (not raw collagen)
- Branded peptides (Peptan®, FORTIGEL®, UC-II®) preferred for clinical validity
- Paired with vitamin C in the formula or dosing instructions
- Third-party tested for heavy metals (particularly marine and bovine sources)
Health goals supported
Safety & dosing notes
Very safe — collagen is a food-derived protein. Possible GI discomfort at very high doses. Fish-derived marine collagen may trigger fish allergy. Bovine collagen is safe for most but avoid in religious or dietary restrictions around beef.
SuppsBuddy identifies whether products use clinical-grade branded peptides (Peptan®, FORTIGEL®, UC-II®) and flags generic or non-hydrolyzed collagen as having less defined clinical outcomes. The vitamin C co-factor requirement is highlighted in the analysis.
Frequently asked questions
What is Collagen?
Collagen is the most abundant structural protein in the body, comprising approximately 30% of total body protein. It provides tensile strength to skin, tendons, ligaments, cartilage, and bone. Type I collagen is the most prevalent (skin, tendons, bone), while Type II is specific to cartilage. Collagen production declines approximately 1% per year beginning in the mid-twenties. Hydrolyzed collagen (collagen peptides) is predigested into small peptides that are absorbed intact and stimulate fibroblast activity.
How does Collagen work?
Contrary to general protein supplementation, specific collagen peptides (particularly those from Peptan® or FORTIGEL®) appear to reach connective tissues and trigger fibroblasts and chondrocytes to increase their own collagen and proteoglycan synthesis — a targeted signaling effect not seen with other protein sources. Vitamin C is a required cofactor for collagen synthesis — the enzyme prolyl hydroxylase that creates the collagen triple helix requires ascorbic acid.
What is the typical clinical dose range for Collagen?
5–15 g/day. Skin benefits: 2.5–10 g/day hydrolyzed collagen peptides. Joint pain/cartilage: 8–15 g/day (or 40 mg Type II collagen). Take with vitamin C to maximize collagen synthesis. Some evidence that consuming collagen 30–60 minutes before exercise (with vitamin C) increases collagen synthesis in connective tissue.
What forms of Collagen should I look for?
Hydrolyzed Type I+III Collagen Peptides (Peptan®): Clinically validated form for skin; extensive human trial data | FORTIGEL® (bioactive collagen peptides for joints): Specific peptide sequence studied for cartilage collagen stimulation | Undenatured Type II Collagen (UC-II®): 40 mg dose specifically studied for joint pain; different mechanism from hydrolyzed collagen | Marine collagen: Good bioavailability; sustainable source; primarily Type I but lacks branded research peptides | Non-hydrolyzed (intact) collagen: Not absorbed as intact collagen; no clinical benefit advantage over standard dietary protein
Is Collagen safe?
Very safe — collagen is a food-derived protein. Possible GI discomfort at very high doses. Fish-derived marine collagen may trigger fish allergy. Bovine collagen is safe for most but avoid in religious or dietary restrictions around beef. This information is educational and is not medical advice.
How does SuppsBuddy evaluate Collagen?
SuppsBuddy identifies whether products use clinical-grade branded peptides (Peptan®, FORTIGEL®, UC-II®) and flags generic or non-hydrolyzed collagen as having less defined clinical outcomes. The vitamin C co-factor requirement is highlighted in the analysis.
Related ingredients
This page is for educational purposes only. These statements have not been evaluated by the FDA. This information is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before starting any supplement.