| L-Proline 3000 mg | SuperSmart | 3000 mg | — | Capsule |
| Liquid Aminos Wild Cherry Flavor● OTHER INGREDIENTS (1) | Precision Engineered | 2130 mg | — | Liquid |
| L-Proline | BulkSupplements.com | 2000 mg | — | Powder |
| L-Proline 2000 mg Capsules | BulkSupplements.com | 2000 mg | — | Capsule |
| Ortho C+ Lemon Flavor● OTHER INGREDIENTS (3) | AOR Advanced Orthomolecular Research Premium | 2000 mg | — | Powder |
| L-Proline 2,000 mg | Nutricost | 2000 mg | — | Powder |
| 100% Pure L-Proline 2000 Milligrams | NutraBio | 2000 mg | — | Capsule |
| L-Proline | AN Amazing Nutrition Amazing Formulas | 2000 mg | — | Powder |
| Whey Protein Gold Isolate Plus Natural Vanilla Flavor | California Academy of Health | 1671 mg | — | Powder |
| Advanced Recovery Formula Vanilla● OTHER INGREDIENTS (1) | Biosteel | 1651 mg | — | Powder |
| Advanced Recovery Formula Chocolate● OTHER INGREDIENTS (1) | BioSteel | 1651 mg | — | Powder |
| 100% Whey Protein Fuel Chocolate Surge● OTHER INGREDIENTS (1) | Twinlab | 1600 mg | — | Powder |
| 100% Whey Protein Fuel Vanilla Slam● OTHER INGREDIENTS (1) | Twinlab | 1600 mg | — | Powder |
| 100% Whey Protein Fuel Strawberry Smash● OTHER INGREDIENTS (1) | Twinlab | 1600 mg | — | Powder |
| Cardio Pro● OTHER INGREDIENTS (1) | Progressive Professional from Progressive Laboratories | 1500 mg | — | Powder |
| Whey Protein Isolate Chocolate● OTHER INGREDIENTS (1) | BioSteel | 1452 mg | — | Powder |
| Whey Protein Isolate Vanilla● OTHER INGREDIENTS (1) | BioSteel | 1452 mg | — | Powder |
| Whey Protein Gold Isolate Plus Natural Chocolate Flavor● OTHER INGREDIENTS (1) | California Academy of Health | 1353 mg | — | Powder |
| Nitro Benefits● OTHER INGREDIENTS (1) | DaVinci Benefits Line | 1000 mg | — | Powder |
| L-Proline 500 mg● OTHER INGREDIENTS (2) | Best Naturals | 1000 mg | — | Capsule |
| L-Proline | Herbadiet | 1000 mg | — | Capsule |
| L-Proline Powder | Herbadiet | 1000 mg | — | Powder |
| L-Proline 550 mg | BulkSupplements.com | 550 mg | — | Capsule |
| 24/7 Beauty Collagen Protein Raspberry Flavored● OTHER INGREDIENTS (1) | IVL | 550 mg | — | Powder |
| InflammaCORE Chocolate Mint● OTHER INGREDIENTS (1) | Ortho Molecular Products | 500 mg | — | Powder |
| Gut Feeling Max● OTHER INGREDIENTS (1) | HoltraCeuticals | 500 mg | — | Powder |
| Pure L-Proline USP Pharma Grade Powder | Hard Rhino | 500 mg | — | Powder |
| InflammaCORE Orange Splash● OTHER INGREDIENTS (1) | Ortho Molecular Products | 500 mg | — | Powder |
| InflammaCORE Banana Creme● OTHER INGREDIENTS (1) | Ortho Molecular Products | 500 mg | — | Powder |
| L-Proline 500 mg● OTHER INGREDIENTS (1) | AN Amazing Nutrition Amazing Formulas | 500 mg | — | Capsule |
| Pro-Rite | Carlson | 500 mg | — | Capsule |
| InflammaCORE Strawberry● OTHER INGREDIENTS (1) | Ortho Molecular Products | 500 mg | — | Powder |
| L-Proline 500 mg● OTHER INGREDIENTS (1) | Douglas Laboratories | 500 mg | — | Capsule |
| InflammaCORE Vanilla Chai● OTHER INGREDIENTS (2) | Ortho Molecular Products | 500 mg | — | Powder |
| Gut 4-tify● OTHER INGREDIENTS (2) | Just Thrive | 500 mg | — | Capsule |
| InflammaCORE Natural Cherry● OTHER INGREDIENTS (1) | Ortho Molecular Products | 500 mg | — | Powder |
| L-Proline | Earthborn Elements | 410 mg | — | Capsule |
| Heart Science⚠ EXCEEDS UL (2)● OTHER INGREDIENTS (2) | Source Naturals | 400 mg | — | Tablet or Pill |
| Skin Eternal Plus⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | Source Naturals SE Skin Eternal | 400 mg | — | Tablet or Pill |
| FLEX | AdvoCare | 400 mg | — | Capsule |
| Amino Fuel 1000● OTHER INGREDIENTS (4) | Twinlab | 289 mg | — | Tablet or Pill |
| LigaZyme● OTHER INGREDIENTS (2) | Allergy Research Group | 250 mg | — | Tablet or Pill |
| Ligament Restore | Pure Encapsulations | 250 mg | — | Capsule |
| H-S-N Complex⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Designs for Health | 250 mg | — | Capsule |
| Glycine + Taurine & L-Proline Unflavored | Pure Power | 250 mg | — | Powder |
| Liga-Tend● OTHER INGREDIENTS (2) | Country Life | 250 mg | — | Tablet or Pill |
| Joint, Tendon, Ligament I● OTHER INGREDIENTS (2) | Douglas Laboratories | 250 mg | — | Capsule |
| Amino 1000● OTHER INGREDIENTS (2) | Precision Engineered | 249 mg | — | Other (e.g. tea bag) |
| Amino Acids● OTHER INGREDIENTS (2) | Enriching Gifts | 213 mg | — | Capsule |
| Free-Form Aminos● OTHER INGREDIENTS (2) | DC | 205.5 mg | — | Tablet or Pill |
| Collagen Factors● OTHER INGREDIENTS (2) | Ortho Molecular Products | 200 mg | — | Capsule |
| Matrixx● OTHER INGREDIENTS (2) | Allergy Research Group | 200 mg | — | Capsule |
| Collagen Forte● OTHER INGREDIENTS (1) | Douglas Laboratories | 200 mg | — | Capsule |
| Lustre● OTHER INGREDIENTS (2) | Source Naturals | 200 mg | — | Tablet or Pill |
| Heartbeat Elite⚠ EXCEEDS UL● OTHER INGREDIENTS (3) | Carlson | 150 mg | — | Tablet or Pill |
| Cardio Complete⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Carlson | 150 mg | — | Tablet or Pill |
| Collagenics● OTHER INGREDIENTS (2) | Metagenics | 150 mg | — | Tablet or Pill |
| Amino-NR | Pure Encapsulations | 135 mg | — | Capsule |
| Amino Gram Forte● OTHER INGREDIENTS (3) | Douglas Laboratories | 110 mg | — | Tablet or Pill |
| Hyaluronic Acid 100 mg With Co-Factors● OTHER INGREDIENTS (2) | Protocol For Life Balance | 100 mg | — | Capsule |
| Complete Plant Collagen Builder Natural - No Stevia● OTHER INGREDIENTS (1) | PlantFusion | 100 mg | — | Powder |
| Vegan Collagen Builder + | Amen | 100 mg | — | Capsule |
| Hyaluronic Acid 100 mg● OTHER INGREDIENTS (2) | LuckyVitamin | 100 mg | — | Capsule |
| Complete Plant Collagen Builder Creamy Vanilla Bean● OTHER INGREDIENTS (1) | PlantFusion | 100 mg | — | Powder |
| Wrinkle Remove with Resveratrol⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Totally Products | 100 mg | — | Capsule |
| Beauty Blossom Complex● OTHER INGREDIENTS (1) | Solumeve | 100 mg | — | Capsule |
| Arthrit-Eze● OTHER INGREDIENTS (3) | Xtendlife | 100 mg | — | Tablet or Pill |
| Ultimate Hair & Nail Formula● OTHER INGREDIENTS (2) | Bluebonnet | 100 mg | — | Capsule |
| Advanced Glucosamine Complex● OTHER INGREDIENTS (3) | Solgar | 100 mg | — | Tablet or Pill |
| Hair, Skin & Nails● OTHER INGREDIENTS (1) | LuckyVitamin | 100 mg | — | Capsule |
| Double Strength Hyaluronic Acid 100 mg● OTHER INGREDIENTS (2) | NOW | 100 mg | — | Capsule |
| Clinically Advanced Hair, Skin & Nails● OTHER INGREDIENTS (2) | NOW Solutions | 100 mg | — | Capsule |
| Liquid Hyaluronic Acid 100 mg Berry Flavor | NOW | 100 mg | — | Liquid |
| Hyaluronic Acid Complex● OTHER INGREDIENTS (1) | California Gold Nutrition | 100 mg | — | Capsule |
| Collagen Builder Rich Chocolate● OTHER INGREDIENTS (1) | PlantFusion | 100 mg | — | Powder |
| Skin Support Pack● OTHER INGREDIENTS (2) | Douglas Laboratories | 80 mg | — | Other (e.g. tea bag) |
| Max-Amino Caps with Vitamin B6● OTHER INGREDIENTS (2) | Country Life | 80 mg | — | Capsule |
| Amino Blend | Progressive Professional from Progressive Laboratories | 77 mg | — | Capsule |
| Amino Support Powder● OTHER INGREDIENTS (1) | Kirkman | 70 mg | — | Powder |
| Total Balance Men's Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Total Balance Women's Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Cardio-Klenz● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Joints Ultra⚠ EXCEEDS UL | Viva Vitamins | 50 mg | — | Tablet or Pill |
| Cardio-Support● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Joint Support● OTHER INGREDIENTS (2) | Meijer Naturals | 50 mg | — | Tablet or Pill |
| Total Balance Unisex Premium● OTHER INGREDIENTS (2) | Xtendlife | 50 mg | — | Tablet or Pill |
| Joint Support● OTHER INGREDIENTS (1) | 1 Body | 50 mg | — | Tablet or Pill |
| Skin, Nails & Hair● OTHER INGREDIENTS (1) | Solgar | 50 mg | — | Tablet or Pill |
| Glucosamine Complex● OTHER INGREDIENTS (1) | Genestra Brands | 50 mg | — | Capsule |
| RevitaGlow | HoltraCeuticals | 50 mg | — | Capsule |
| Nails● OTHER INGREDIENTS (2) | Viva Vitamins | 50 mg | — | Tablet or Pill |
| Free Amino Acids● OTHER INGREDIENTS (2) | Nature's Sunshine | 45 mg | — | Tablet or Pill |
| Steady On⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | Allergy Research Group | 45 mg | — | Powder |
| Take Heart II Without Hormones⚠ EXCEEDS UL● OTHER INGREDIENTS (1) | Allergy Research Group | 38 mg | — | Powder |
| Amino Complex● OTHER INGREDIENTS (1) | Dr. Rico Perez | 27 mg | — | Capsule |
| CDC Forte⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Genestra Brands | 25 mg | — | Tablet or Pill |
| PodiVite● OTHER INGREDIENTS (1) | Zen Nutrients | 25 mg | — | Capsule |
| Optimal Amino Blend | Seeking Health | 21 mg | — | Capsule |
| Advanced Collagen Formula● OTHER INGREDIENTS (1) | GNC Women's | 16 mg | — | Capsule |
| Total Balance Children's● OTHER INGREDIENTS (2) | Xtendlife | 15 mg | — | Tablet or Pill |