LifeSource Vitamins Collagen Liquid — Skin, Hair, Nails, Joint & Bone Support*
Hydrolyzed collagen peptides (Type I & III) providing bioavailable amino acids — glycine, proline, hydroxyproline — to maintain and rebuild connective tissues for skin elasticity, strong hair & nails, joint comfort, and bone strength.* Produced in FDA-registered, GMP-certified facilities and 3rd-party lab tested for purity, potency & label accuracy.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (Human Evidence)
✓ Skin hydration, elasticity & wrinkles* — SR/MA of RCTs shows improvements after ~8–12 weeks. NIH/PubMed — Pu S, 2023; NIH/PubMed — de Miranda R, 2021; NIH/PMC — Pu S, 2023
✓ Brittle nails / nail growth* — Daily bioactive collagen peptides improved growth and reduced breakage over 24 weeks. NIH/PubMed — Hexsel D, 2017
✓ Hair/scalp parameters* — Multi-ingredient RCTs including collagen reported improvements in hair measures. NIH/PMC — Ablon G, 2015
✓ Joint comfort in active adults* — RCTs note reductions in joint discomfort and improved function. NIH/PubMed — Clark K, 2008
✓ Knee osteoarthritis symptoms* — Meta-analysis shows significant pain reduction vs placebo. NIH/PMC — Lin C, 2023; NIH/PubMed — Lin C, 2023
✓ Bone mineral density* — Specific collagen peptides increased BMD and shifted bone markers in postmenopausal women (12-mo RCT). NIH/PubMed — König D, 2018; NIH/PMC — König D, 2018
✓ Body composition with training* — Collagen + resistance training improved fat-free mass/strength vs training alone. NIH/PubMed — Kirmse M, 2019; NIH/PubMed — Oertzen-Hagemann V, 2019; NIH/PMC — Oertzen-Hagemann V, 2019
✓ Function & quality of life* — 6–9 months of collagen peptides improved pain and daily activities. NIH/PubMed — Kviatkovsky S, 2023; NIH/PMC — Kviatkovsky S, 2023
✓ Cellulite appearance* — Specific peptides improved dermal structure/cellulite grade (6-mo RCT). NIH/PMC — Schunck M, 2015
✓ Dermal density & elasticity* — RCTs report increased dermal collagen density and elasticity vs placebo. NIH/PubMed — Proksch E, 2015
Additional Studies Showing Promising Benefits
✓ Tendon support with exercise* — Collagen/gelatin around training increased collagen-synthesis markers; pilot trials inform rehab protocols. NIH/PMC — Shaw G, 2017; NIH/PMC — Praet S, 2019
✓ Joint mechanisms* — Reviews describe bioactive peptides reaching joint tissues; potential chondroprotective effects. NIH/PMC — Elango J, 2023
✓ Skin & aging overview* — Syntheses support hydration/elasticity benefits with consistent use. NIH/PubMed — Choi F, 2024
✓ Digestive comfort* — Real-world evidence suggests improved GI tolerance/comfort in users. NIH/PMC — Deutch S, 2022
✓ Activity-related knee pain* — Athlete trials/reviews cite ~12-week protocols. NIH/PMC — Volkert A, 2024
✓ Vitamin C as a cofactor* — Vitamin C is required for collagen synthesis; pairing may enhance outcomes. NIH/PMC — Pullar J, 2017
University / Academic Context
✓ Mechanistic overview (peptides → dermal matrix)* — Summaries on collagen peptide absorption & signaling. (Evidence — Oregon State University – Linus Pauling Institute, 2024)
✓ Skin aging & photoaging context* — Academic perspectives on collagen loss and support strategies. (Evidence — Harvard University, 2024)
Global Evidence & Authoritative Reviews
✓ Dermatology viewpoint* — Clinical overviews on nutricosmetics/collagen supplementation. (Evidence — American Academy of Dermatology, 2024)
✓ Nutrition & bone health guidance* — Agency summaries on bone support and protein. NIH/ODS — 2024
We monitor research from leading institutions — Harvard University, Johns Hopkins University, Mayo Clinic, Cleveland Clinic, Cambridge University, Oxford University, Stanford University, Yale University, Tufts University, University of Florida, Oregon State University – Linus Pauling Institute, Columbia University, Cornell University, and more — to keep our guidance aligned with credible science.*
Brief Benefit Bullets
- Supports skin hydration, elasticity & wrinkle reduction (8–12 weeks)*
- Strengthens brittle nails; promotes nail growth*
- Hair/scalp appearance support*
- Helps maintain joint comfort & mobility*
- Promotes bone strength & density*
- Supports healthy body composition with training*
Suggested Use
See product label for full instructions, or as directed by your healthcare professional. Do not exceed recommended dose. If pregnant, nursing, taking medications, or have a medical condition, consult your physician.*
Product Specifications
Serving Size — 1 Tablespoon (15 mL)
• Servings Per Container — 30
• Protein — 8 g per tablespoon (from Enzyme Hydrolyzed Bovine Collagen)
• L-Citrulline — 500 mg
• Other Ingredients — Purified water, fructose, citric acid, glycerine, natural orange flavor, phosphoric acid, sodium benzoate & potassium sorbate (to preserve freshness), stevia leaf extract
• Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
Collagen Liquid — supports skin, hair, nails, joints & bones; hydrolyzed Type I & III peptides; label-verified specs; 3rd-party tested. Clinically Studied Ingredients — NIH/PubMed!*
