Optimum Nutrition Beta-Alanine


Size: 75 Servings

Optimum Nutrition Beta-Alanine Powder has been formulated to boost your intramuscular buffering system so you can push past fatigue in the gym. Optimum Nutrition Beta-Alanine is also loaded with Histidine and Phosphates.

Size: 75 Servings

To meet the energy demands of hard, intense workouts, the body breaks down glucose and glycogen. During this process, hydrogen ions (H+) are manufactured in the muscles. The accumulation of H+ results in more acidity in the muscles and increases fatigue. Our Threshold formula is loaded with Beta-Alanine, Histidine, and Phosphates and is designed to enhance your intramuscular buffering system which means you can work out harder and for longer periods of time.

Beta-Alanine has been around for over 100 years even though it’s a recent addition to the supplement world. It’s also called 3-amino propanoic acid, it’s a non-essential amino acid and is the only naturally occurring beta-amino acid. It should not be mistaken for the amino acid alanine and is not used in the manufacture of proteins - therefore beta-alanine is classified as a non-proteinogenic amino acid.

The best sources of the natural dietary supplement beta-alanine can be acquired by consuming beta-alanine containing dipeptides: carnosine, anserine and balenine, as opposed to direct beta-alanine consumption. These dipeptides are found in high protein foods like beef, chicken, pork, and fish.

Optimum Nutrition Beta-Alanine Highlights

  • Contains 3.2 grams of Beta-Alanine per serving
  • Contains 1.1 grams of L-Histidine per serving
  • 4 Mineral Electrolytes – phosphorous, magnesium, sodium and potassium
  • Promotes Carnosine Synthesis


Keep out of reach of children. Check with a qualified health care professional before taking this product if you are pregnant or nursing a baby, under 18 years of age, have any known or suspected medical conditions, and/or if you are taking any prescription or OTC medications.

Supplement Facts

37 servings per container
Serving size
5.4g (About 2 Scoops)
Total Carbohydrate
Phosphorus(as Dimagnesium Phosphate, Monosodium Phosphate, Dipotassium Phosphate)
Magnesium(as Dimagnesium Phosphate)
Sodium(as Monosodium Phosphate)
Potassium(as Di-Potassium Phosphate)
CarnoSyn® Beta-Alanine

Daily Values are based on a 2,000 calorie diet.
Daily Value (DV) not established

Other Ingredients

Malic Acid, Natural & Artificial Flavor, Silicon Dioxide, Citric Acid, Beet Powder, Tartaric Acid, Sucralose, Yellow 5 & 6.

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Add 1 scoop of Threshold to a glass or shaker cup filled with 6-8 oz. of cold water or your favorite beverage. Mix or shake thoroughly for 15-20 seconds or until powder is completely dissolved.

Consume one serving first thing in the morning and a second serving approximately 30 minutes before your workout (or mid-afternoon on non-training days). Tips: The first few times that you use it, the threshold may cause a tingling sensation on your skin. With continued use, the intensity of the sensation will decrease or disappear. For best results, use Threshold continuously for at least 8 weeks.

Additional information

Weight 9.4 oz
Dimensions 4 × 3.5 × 3.5 in

75 Servings