PlainVitamins

Beta-X

by AST Sports Science · powder · 160 grams

  • On the market (NIH)
  • UPC 7 05077 00299 4
  • DSLD label 73392
  • Serving 1 to 2 g (1-2 scoops); amounts per 1 g
  • 160 servings

Beta-X by AST Sports Science lists one ingredient: 1,000 mg of CarnoSyn per serving of 1 g. Its current label entered the NIH Dietary Supplement Label Database on April 25, 2017.

What is in Beta-X?

Each row as the label prints it, per serving of 1 g. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Beta-X: Supplement Facts rows against the market (DSLD label 73392, January 2026 release)
IngredientAmount% DVAmong products listing it
CarnoSynas Beta-AlanineCarnoSyn Beta-Alanine Note: 98%1,000 mgBeta-Alanine in Beta-X against 1,778 products1 g per serving; the middle half of products list 1.6 g to 3.2 g, the median 2 g.1 g

86% of 1,778 products listing beta-alanine give more (median 2 g). Per day at the most servings: 3 g.

Source: NIH ODS Dietary Supplement Label Database, label 73392 (entered April 25, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 86% of the 1,778 products that print an amount of beta-alanine list more than its 1 g of CarnoSyn (filed by NIH under beta-alanine) (median 2 g).

The NIH database records 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommended Use: Muscle Tissue Saturation Phase Week 1 through 4 - take two (2) scoops BETA-X powder 3 times per day (every 4 to 6 hours). Muscle Tissue Support Phase Week 5 and beyond - take one (1) scoop BETA-X powder 3 times per day (every 4 to 6 hours).

Source: label statements in DSLD label 73392.

How many labels does Beta-X have?

3 labels are on file under this name since May 24, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 73392 (current) Entered April 25, 2017 · on the market · 160 grams · UPC 7 05077 00299 4
  2. Label 43905 Entered March 25, 2015 · off the market April 12, 2017 · 160 grams · UPC 7 05077 00299 4
  3. Label 21426 Entered May 24, 2013 · off the market March 19, 2015 · 160 grams · UPC 7 05077 00299 4

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names AST Sports Science (manufacturer), Golden, CO. All AST Sports Science products.

Where next?