| Carnosine | SuperSmart | 1500 mg | — | Capsule |
| Carnosine 1500 mg | SuperSmart | 1500 mg | — | Capsule |
| L-Carnosine 1000 mg● OTHER INGREDIENTS (2) | Jarrow Formulas | 1000 mg | — | Capsule |
| L-Carnosine Powder | Nootropics Depot | 1000 mg | — | Powder |
| L-Carnosine● OTHER INGREDIENTS (2) | Jarrow Formulas | 1000 mg | — | Capsule |
| Telomeron● OTHER INGREDIENTS (2) | Source Naturals | 750 mg | — | Tablet or Pill |
| L-Carnosine | Pure Encapsulations | 500 mg | — | Capsule |
| L-Carnosine● OTHER INGREDIENTS (3) | Bronson Laboratories | 500 mg | — | Capsule |
| L-Carnosine Powder | Herbadiet | 500 mg | — | Unknown |
| L-Carnosine 500 mg● OTHER INGREDIENTS (3) | Vitamin World | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (1) | Source Naturals | 500 mg | — | Tablet or Pill |
| L-Carnosine 500 mg CarnoSure● OTHER INGREDIENTS (1) | Health Thru Nutrition | 500 mg | — | Capsule |
| L-Carnosine 500 mg with R-Alpha Lipoic Acid | Dr. Mercola | 500 mg | — | Capsule |
| L-Carnosine 500 mg | NutraBio | 500 mg | — | Capsule |
| L-Carnosine 500 mg Unflavored | Nutricost | 500 mg | — | Powder |
| L-Carnosine 500 mg | Nutricost | 500 mg | — | Powder |
| L-Carnosine | Hard Rhino | 500 mg | — | Powder |
| Spectra Infinite Nutrition⚠ EXCEEDS UL (2) | DaVinci Laboratories | 500 mg | — | Powder |
| Glycation Protection Formula● OTHER INGREDIENTS (1) | Life Extension | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (1) | KAL | 500 mg | — | Tablet or Pill |
| L-Carnosine | BulkSupplements.com | 500 mg | — | Powder |
| Stem Cell Support⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Country Life Ageless Theory | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (2) | BIOVEA | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (2) | The Vitamin Shoppe | 500 mg | — | Capsule |
| Carnosine 500 mg● OTHER INGREDIENTS (1) | Life Extension | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (2) | Klaire Labs | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (1) | Natural Factors | 500 mg | — | Capsule |
| Carnosine-500 | AOR Advanced Orthomolecular Research Premium | 500 mg | — | Capsule |
| Super Carnosine 500 mg● OTHER INGREDIENTS (1) | Life Extension | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (2) | Best Naturals | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (3) | Puritan's Pride | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (1) | Douglas Laboratories | 500 mg | — | Capsule |
| L-Carnosine 500 mg● OTHER INGREDIENTS (1) | NOW | 500 mg | — | Capsule |
| L-Carnosine 500 mg | BulkSupplements.com | 500 mg | — | Capsule |
| Learner's Edge● OTHER INGREDIENTS (1) | Integrative Therapeutics | 400 mg | — | Capsule |
| Longevity Nutrients | SuperSmart | 400 mg | — | Capsule |
| Nootropics Brain | Dioxyme | 333 mg | — | Capsule |
| L-Carnosine | Herbadiet | 300 mg | — | Capsule |
| Joint Tendon Ligament II● OTHER INGREDIENTS (2) | Douglas Laboratories | 250 mg | — | Capsule |
| Telomere Advantage● OTHER INGREDIENTS (1) | Swanson | 250 mg | — | Capsule |
| Liposomal Carnosine | Dr. Mercola | 250 mg | — | Capsule |
| L-Carnosine 200 mg● OTHER INGREDIENTS (1) | Kirkman | 200 mg | — | Capsule |
| Telomeres Maintenance Formula | SuperSmart | 200 mg | — | Capsule |
| Optimal Prenatal Vanilla | Seeking Health | 150 mg | — | Powder |
| Optimal Prenatal Chocolate | Seeking Health | 150 mg | — | Powder |
| ReJen Rx● OTHER INGREDIENTS (2) | Bronson Laboratories | 150 mg | — | Capsule |
| Optimal Prenatal Methyl-Free● OTHER INGREDIENTS (1) | Seeking Health | 150 mg | — | Capsule |
| Neuro-Natural Sleep● OTHER INGREDIENTS (3) | Xtendlife | 148 mg | — | Tablet or Pill |
| Neuro-Natural Serenity● OTHER INGREDIENTS (3) | Xtendlife | 148 mg | — | Tablet or Pill |
| Neuro-Natural General● OTHER INGREDIENTS (3) | Xtendlife | 148 mg | — | Tablet or Pill |
| Visitein Complex● OTHER INGREDIENTS (2) | MBi Nutraceuticals | 140 mg | — | Capsule |
| Behavior Balance-DMG | DaVinci Laboratories | 133 mg | — | Capsule |
| Behavior Balance-DMG | DaVinci Laboratories Of Vermont | 133 mg | — | Capsule |
| Total Balance Men's Premium● OTHER INGREDIENTS (2) | Xtendlife | 100 mg | — | Tablet or Pill |
| Total Balance Women's Premium● OTHER INGREDIENTS (2) | Xtendlife | 100 mg | — | Tablet or Pill |
| Total Balance Unisex Premium● OTHER INGREDIENTS (2) | Xtendlife | 100 mg | — | Tablet or Pill |
| Keto Daily Multi-Vitamins● OTHER INGREDIENTS (1) | Sierra Fit | 100 mg | — | Capsule |
| G.I. Benefits | DaVinci Benefits Line | 76 mg | — | Powder |
| Optimal GI Plus with L-Glutamine Natural Peach Flavor | Seeking Health | 76 mg | — | Powder |
| Optimal GI Powder | Seeking Health | 75 mg | — | Powder |
| Disc-Flex | Pure Encapsulations | 75 mg | — | Capsule |
| PepZin GI● OTHER INGREDIENTS (2) | Doctor's Best | 59 mg | — | Capsule |
| GI Guard PM● OTHER INGREDIENTS (2) | Protocol For Life Balance | 57 mg | — | Capsule |
| Zinc Carnosine● OTHER INGREDIENTS (1) | Seeking Health | 56 mg | — | Capsule |
| Wellness Essentials Healthy Balance⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Metagenics | 50 mg | — | Other (e.g. tea bag) |
| Carnosine● OTHER INGREDIENTS (2) | Cardiovascular Research | 50 mg | — | Capsule |
| Stem Cells Activator | SuperSmart | 50 mg | — | Capsule |
| Stem Boost-R● OTHER INGREDIENTS (1) | LifeSeasons Therapeutics | 50 mg | — | Capsule |
| MetaGlycemX⚠ EXCEEDS UL● OTHER INGREDIENTS (2) | Metagenics | 50 mg | — | Tablet or Pill |
| Up-Lift Tart Cherry● OTHER INGREDIENTS (3) | Beverly International | 50 mg | — | Powder |
| Wrinkle Rescue● OTHER INGREDIENTS (1) | NOW Solutions | 50 mg | — | Capsule |
| Liquid Complete B Advanced Formula⚠ EXCEEDS UL | California Academy of Health | 50 mg | — | Liquid |
| Metabolic Multi⚠ EXCEEDS UL | DaVinci Laboratories | 50 mg | — | Capsule |
| Zinc-L-Carnosine Complex● OTHER INGREDIENTS (2) | California Gold Nutrition | 43 mg | — | Capsule |
| Optimal GI● OTHER INGREDIENTS (1) | Seeking Health | 41 mg | — | Capsule |
| Nu Born Skin● OTHER INGREDIENTS (2) | Body Dynamics MaXzorbceuticals Nutrition | 36 mg | — | Capsule |
| Zinc Carnosine● OTHER INGREDIENTS (1) | Swanson | 29.5 mg | — | Capsule |
| Zinc Carnosine 37 mg Smooth Lemon● OTHER INGREDIENTS (2) | EZ Melts | 29 mg | — | Tablet or Pill |
| Athletic Pure Pack⚠ EXCEEDS UL | Pure Encapsulations | 25 mg | — | Capsule |
| Endura Orange Flavor● OTHER INGREDIENTS (1) | Metagenics | 20 mg | — | Powder |
| Endura Lemon-Lime Flavor● OTHER INGREDIENTS (1) | Metagenics | 20 mg | — | Powder |
| Total Balance Children's● OTHER INGREDIENTS (2) | Xtendlife | 10 mg | — | Tablet or Pill |
| Anti Sensitive Skin Capsules● OTHER INGREDIENTS (2) | Esmond Natural | 10 mg | — | Capsule |
| Longevity Activator● OTHER INGREDIENTS (1) | Zenith Labs | 10 mg | — | Capsule |
| Anti-Mutagens With Ellagic Acid● OTHER INGREDIENTS (2) | Ecological Formulas | 5 mg | — | Capsule |
| IGA+Intercellular Glutathione Inducers● OTHER INGREDIENTS (2) | Ecological Formulas | 2.5 mg | — | Capsule |
| Fibromyalgin● OTHER INGREDIENTS (2) | Cardiovascular Research | 2 mg | — | Capsule |
| Free Radical Quenchers● OTHER INGREDIENTS (2) | Ecological Formulas | 1.5 mg | — | Capsule |
| Glycation Manager● OTHER INGREDIENTS (2) | Integrative Therapeutics | 0 NP | — | Capsule |
| Carnosine 500 mgDiscontinued | SuperSmart | 1500 mg | — | Capsule |
| L-Carnosine 500 mgDiscontinued● OTHER INGREDIENTS (2) | Jarrow Formulas | 500 mg | — | Capsule |
| L-Carnosine 500 mgDiscontinued● OTHER INGREDIENTS (1) | Health Thru Nutrition Naturally | 500 mg | — | Capsule |
| 100% Pure L-Carnosine 500 MilligramsDiscontinued | NutraBio | 500 mg | — | Capsule |
| 100% Pure L-Carnosine 500 mgDiscontinued | NutraBio | 500 mg | — | Capsule |
| Telomere AdvantageDiscontinued● OTHER INGREDIENTS (2) | Swanson Ultra | 250 mg | — | Capsule |
| Behavior Balance-DMGDiscontinued | DaVinci Laboratories of Vermont | 133 mg | — | Capsule |
| PepZinGIDiscontinued● OTHER INGREDIENTS (2) | Doctor's Best | 59 mg | — | Capsule |
| Zinc Carnosine Complex With Pepzine GIDiscontinued● OTHER INGREDIENTS (2) | Doctor's Best | 59 mg | — | Capsule |
| Wrinkle RescueDiscontinued● OTHER INGREDIENTS (2) | NOW | 50 mg | — | Capsule |
| Stem Boost-RDiscontinued● OTHER INGREDIENTS (1) | LifeSeasons | 50 mg | — | Capsule |