No known drug interactions for the matched ingredients — not a guarantee none exist. Check your meds →
Dietary supplement

Beta-Alanine Powder Ingredients & Drug Interactions

by NOW Sports

Beta-Alanine Powder label
See full label image
Powder Category: Amino Acid/protein
No known interaction
Clinical methodology reviewed by · Updated Sep 16, 2026 · Label data from the NIH DSLD
What is this page for?

First and foremost: checking Beta-Alanine Powder against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.

Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy

The interaction bottom line No known interaction

Beta-Alanine Powder is a dietary supplement by NOW Sports with 1 active ingredient. Its ingredients are commonly taken for athletic performance and endurance, high-intensity exercise capacity, reducing muscle fatigue.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.

Jump to a section

HelloPharmacist Scorecard of Beta-Alanine Powder by NOW Sports

Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.

From our pharmacy team — supplement deep dive

Generated from HelloPharmacist’s pharmacist-curated databases and editorial rules · Last generated Jul 16, 2026

What’s inside

Full disclosure
Ingredient Transparency · database check
Full

Every active ingredient lists its own amount on the label.

Why this rating?
  • The label discloses an exact amount for 1 of its 1 active ingredient.
  • No proprietary blends here — you can verify the dose of every single component.

This product contains one active ingredient: CarnoSyn, a branded form of beta-alanine. Beta-alanine is an amino acid your body uses to make carnosine, a compound involved in muscle function and endurance.

The powder form lets you mix it into water or a beverage for easy dosing.

Does it work?

Moderate evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Moderate

Some clinical evidence supports this product's ingredients for its stated purpose, but it isn't conclusive.

Why this rating?
  • The label markets this product for: endurance and muscular endurance, delays muscle fatigue.
  • We looked for evidence on: Athletic performance, Physical performance, Exercise-induced muscle breakdown, muscle fatigue, high-intensity exercise capacity.
  • The strongest evidence on file: Beta-alanine is rated "Possibly Effective" for Athletic performance (Natural Medicines).
  • Also on file: Beta-alanine is rated "Possibly Effective" for Physical performance.
  • Also on file: Beta-alanine is rated "Insufficient Reliable Evidence To Rate" for Exercise-induced muscle breakdown.

Beta-alanine is rated possibly effective for athletic performance and physical performance — meaning there's some evidence it may help, but it's not yet conclusive. For age-related cognitive decline, chronic obstructive pulmonary disease (COPD), general cognitive function, and menopausal symptoms, the evidence isn't established in our data.

The evidence, ingredient by ingredient Beta-alanine

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 1 of the 1 matched ingredient.
  • Pregnancy & breastfeeding safety ratings cover 1 of 1.
  • General safety write-ups exist for 1 of 1.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Beta-alanine is generally well tolerated in healthy adults. The most common side effect is a harmless tingling sensation (paresthesia) and skin flushing, usually starting on the scalp within about 20 minutes and spreading across the body for roughly an hour.

How intense this is depends on the dose — it's very mild at lower doses and affects only some people. The product hasn't been studied for long-term use at high doses, so caution is warranted there.

Because there isn't enough safety information, it's best to avoid beta-alanine during pregnancy and while breastfeeding — talk with your doctor or pharmacist if you're in either situation.

Side effects, ingredient by ingredient Beta-alanine

Meds to double-check

No known interactions
Known Interaction Concern · database check
No known interactions

No medication interactions are currently documented for the matched ingredients — that isn't a guarantee none exist.

Why this rating?
  • None of the 1 matched ingredient has a documented medication interaction on file.

No interactions are documented in our data for the ingredients we hold information on. All the same, check your exact medications with the tool on this page or confirm with your pharmacist before starting.

The bottom line

Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. No medication interactions are currently documented, and safety information is well characterized.

NOW Sports Beta-Alanine is worth considering if you're looking for a supplement to support athletic or physical performance, though results aren't guaranteed. If you're pregnant, breastfeeding, or taking any medications, check with your own doctor or pharmacist before starting.

The tingling sensation is normal and harmless, but it's worth knowing it'll probably happen.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Apr 22, 2021.

This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed

At a glance

General information

Key facts about Beta-Alanine Powder, straight from the product label.

Brand NOW Sports
Net contents 500 Gram(s); 17.6 oz.
Market status On market
Date entered into DSLD Apr 22, 2021
DSLD ID 245297
Product type Amino Acid/protein
Supplement form Powder
Dietary claims / uses Nutrient, All Other, Structure/Function
Intended target group(s) Vegan, Vegetarian, Adult (18 - 50 Years), Kosher, Gluten Free, Dairy Free
From the label
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.

Supplement Facts

The label details for Beta-Alanine Powder by NOW Sports, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
2 Gram(s)
Maximum serving Sizes:
2 Gram(s)
Servings per container
250
IngredientAmount% DV
CarnoSyn2 Gram(s)--

Other ingredients: None

Tap any ingredient to jump to its full detail below.

Label statements
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
Formulation

Endurance Pure powder Muscular endurance Delays muscle fatigue

Vegan

Non-GMO

Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients.

Natural color variation may occur in this product.

Seals/Symbols

Triangle K (Kosher)

Formula

Triangle K (Kosher)

CarnoSyn Carnitine Synthesizer

Beta-Alanine is a non-essential amino acid that is used by muscle cells to synthesize carnosine. Carnosine is a dipeptide (Beta-Alanine plus Histidine) that functions as a buffer for the hydrogen ions (acid) produced during strenuous exercise, thus helping to maintain optimum muscular pH. NOW Sports uses CarnoSyn, a patented form of Beta-Alanine that has been clinically tested and shown to increase muscle carnosine content, allowing muscles to work harder and longer during intense exercise. NOW Sports Beta-Alanine is backed by scientific research demonstrating that CarnoSyn supplementation results in delayed muscle fatigue and rapid recovery time, thereby helping you attain your strength and endurance training goals.

FDA Statement of Identity

A Dietary Supplement

Suggested/Recommended/Usage/Directions

Suggested Usage: Take a 1/2 level teaspoon 3 to 4 times daily. Mix into 8 oz. of water or your favorite beverage. For best results, allow at least 2 hours between doses.

Precautions

Caution: For adults only. Beta-Alanine may cause a harmless, temporary tingling sensation on the skin for some individuals. After a few weeks of supplementation with Beta-Alanine, this sensation normally lessens or subsides.

Consult physician if pregnant/nursing, taking medication, or have a medical condition.

Keep out of reach of children.

Not manufactured with yeast, wheat, gluten, soy, corn, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Brand IP Statement(s)

Natural Alternatives International (NAI) is the owner of patents as listed on www.carnosyn.com and registered trademark CarnoSyn.

FDA Disclaimer Statement

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.

General Statements

This product is sold by weight not volume.

Storage

Store in a cool, dry, dark place after opening.

Is this label outdated? Report a formula or label change and our pharmacy team will review it.

See for yourself

Beta-Alanine Powder by NOW Sports label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

Beta-Alanine Powder label

Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.

View the full label (PDF)
What’s inside

The Ingredients in Beta-Alanine Powder by NOW Sports

This is the 1 active ingredient this product is made of. Select it to open its full monograph.

Serving size2 Gram(s) Dosage formPowder Servings per container250 Amounts shown are per serving.

CarnoSyn

No known
interactions
2 Gram(s) per serving Form: Beta-Alanine

Beta-alanine is an amino acid taken mostly by athletes to raise muscle carnosine, which may help buffer acid and reduce fatigue during short, high-int...

CarnoSyn monograph & interactions

Other (inactive) ingredients: None. These complete the product’s ingredient list but are not active constituents.

Interaction report

Beta-Alanine Powder by NOW Sports Drug Interactions

We don’t currently list any known drug interactions for the mapped ingredients in Beta-Alanine Powder. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.

The maker

Brand information

Manufacturer and brand details for Beta-Alanine Powder, from the product label.

NOW Sports

See all NOW Sports products
Name
NOW FOODS
Street Address
395 S. Glen Ellyn Rd.
City
Bloomingdale
State
IL
ZipCode
60108
Web Address
nowsportsproducts.com
Pharmacist Counseling Corner

Beta-Alanine Powder by NOW Sports: Common Questions

Does Beta-Alanine Powder by NOW Sports interact with any medications?
We do not currently list a known interaction for the mapped ingredients in Beta-Alanine Powder. This does not guarantee none exist, so confirm with your pharmacist.
How can one product interact with so many drugs?
Beta-Alanine Powder contains a single active ingredient, and that one ingredient can interact with many different medications on its own. We check it against each medication and show the mechanism responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
What's CarnoSyn?
CarnoSyn is a branded form of beta-alanine, an amino acid. Your body uses it to make carnosine, which plays a role in muscle function and endurance.
Will I get that tingling feeling?
You might — it's the most common side effect. It's harmless, usually starts on your scalp within 20 minutes, spreads to your body, and lasts about an hour. How strong it is depends on your dose. At lower doses, it's very mild and doesn't happen to everyone.
Is it safe if I'm pregnant or breastfeeding?
There isn't enough safety information, so it's best to avoid it during pregnancy and breastfeeding. Talk with your doctor or pharmacist for personalized advice if that applies to you.
Does beta-alanine actually work for sports performance?
It's rated possibly effective for athletic and physical performance — meaning there's some evidence it may help, but results aren't certain. It won't work for everyone or in every situation.
Can I take this long-term?
It hasn't been studied for long-term use at high doses, so caution is advised if you're thinking about taking it that way. Ask your pharmacist or doctor about what's reasonable for your situation.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Not sure if Beta-Alanine Powder is safe with your meds?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.

Beta-Alanine Powder label
Go deeper

The Full Monographs Behind Beta-Alanine Powder’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Herb & supplement monograph

Beta-alanine

Beta-alanine is an amino acid taken mostly by athletes to raise muscle carnosine, which may help buffer acid and reduce fatigue during short, high-intensity exercise. The evidence is moderat...

Read the full Beta-alanine monograph →
Sources

Sources & How We Checked

Beta-Alanine Powder's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

The 13 references behind this product’s interaction data

Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.

Beta-alanine 13 references
  1. Harris RC, Tallon MJ, Dunnett M, et al. The absorption of orally supplied beta-alanine and its effect on muscle carnosine synthesis in human vastus lateralis. Amino Acids 2006;30:279-89.
  2. Hill CA, Harris RC, Kim HJ, et al. Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Amino Acids 2007;32:225-33.
  3. Bellinger PM, Minahan CL. The effect of ß-alanine supplementation on cycling time trials of different length. Eur J Sport Sci 2016;16(7):829-36.
  4. Chung W, Shaw G, Anderson ME, et al. Effect of 10 week beta-alanine supplementation on competition and training performance in elite swimmers. Nutrients 2012;4(10):1441-53. PubMed
  5. Glenn JM, Gray M, Stewart R, et al. Incremental effects of 28 days of beta-alanine supplementation on high-intensity cycling performance and blood lactate in masters female cyclists. Amino Acids 2015;47(12):2593-600. PubMed
  6. Gross M, Bieri K, Hoppeler H, Norman B, Vogt M. Beta-alanine supplementation improves jumping power and affects severe-intensity performance in professional alpine skiers. Int J Sport Nutr Exerc Metab 2014;24(6):665-73. PubMed
  7. Howe ST, Bellinger PM, Driller MW, Shing CM, Fell JW. The effect of beta-alanine supplementation on isokinetic force and cycling performance in highly trained cyclists. Int J Sport Nutr Exerc Metab 2013;23(6):562-70. PubMed
  8. Sweeney KM, Wright GA, Glenn Brice A, Doberstein ST. The effect of beta-alanine supplementation on power performance during repeated sprint activity. J Strength Cond Res 2010;24(1):79-87.
  9. Décombaz J, Beaumont M, Vuichoud J, Bouisset F, Stellingwerff T. Effect of slow-release ß-alanine tablets on absorption kinetics and paresthesia. Amino Acids 2012;43(1):67-76. Erratum in: Amino Acids 2013;45(4):1015.
  10. Stellingwerff T, Anwander H, Egger A, et al. Effect of two ß-alanine dosing protocols on muscle carnosine synthesis and washout. Amino Acids 2012;42(6):2461-72. PubMed
  11. da Silva RP, de Oliveira LF, Saunders B, et al. Effects of ß-alanine and sodium bicarbonate supplementation on the estimated energy system contribution during high-intensity intermittent exercise. Amino Acids. 2019;51(1):83-96. PubMed
  12. Varanoske AN, Hoffman JR, Church DD, et al. Comparison of sustained-release and rapid-release ß-alanine formulations on changes in skeletal muscle carnosine and histidine content and isometric performance following a muscle-damaging protocol. Amino Acids. PubMed
  13. Perim P, Gobbi N, Duarte B, et al. Beta-alanine did not improve high-intensity performance throughout simulated road cycling. Eur J Sport Sci 2021. PubMed

See these in context on the Beta-alanine monograph →

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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