GAT Sport's liquid glycerol. A full serving is two tablespoons (1 fl oz) with 20g of glycerol, 2g of beta-alanine, 2.5g of betaine and 90mg of vitamin C. The 16 fl oz bottle holds 16 full servings, or 32 halves.
A full serving (2 tbsp) is 20g of glycerol with 2g of beta-alanine and 2.5g of betaine. Half servings work too: one tablespoon is 10g of glycerol. The bottle is $29.99 for 16 servings, about $1.87 each. The limit is that the beta-alanine can tingle on top of a pre-workout that already has it.
Disclaimer: This is an independent editorial analysis. No brand paid for this score.
$1.87 / serving · 16 servings / bottle
Unflavored
3 stores we checked on Nov 6, 2026, best price per serving first. Prices change often, so the price at checkout is the one that counts.
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Lowest price we have written down
Not enough price data yet
We started tracking this bottle on Nov 6, 2026, too recently to chart. The lowest price then was $29.99, and the chart fills in as we re-check prices.
The company behind Nitraflex Glycerol
How its label, price and reviews stack up against the 16 glycerol supplements we rank.
4.8/5
41 reviews at GAT Sport, iHerb, Walmart
Next to other glycerol supplements. This one is the bright bar.
Cheapest on the left. This one is the bright bar.
Each serving of GAT Sport Nitraflex Glycerol (2 tbsp) has 20g of glycerol, tied for the most of the 16 glycerol supplements we rank. A bottle holds 16 servings.
The doses we track are 2g of beta-alanine and 2.5g of betaine.
The lowest price we found is $29.99 for 16 servings, or $1.87 per serving. That's cheaper than 7% of the 16 glycerol supplements we rank, where the typical one costs $0.83.
We checked 3 stores on Nov 6, 2026: GAT Sport, iHerb, and Walmart. It's unflavored.
Shoppers give GAT Sport Nitraflex Glycerol an average of 4.8 out of 5 across 41 reviews at GAT Sport, iHerb, and Walmart. Our Review Scan score for it is 8.6 out of 10.
GAT Sport makes Nitraflex Glycerol. The brand was founded in 1998 and is based in Monroe, Connecticut. We rank 8 GAT Sport products, averaging 7.7 out of 10.
We score it 8.4 out of 10, #5 of 16 glycerol supplements. Its strongest rating is Ingredients & Blend 8.9 and its weakest is Brand Reputation 7.6.
Other glycerol supplements close to this one on glycerol per serving, form, and score.
$0.58 / serving · 60 servings / bottle
$2.11 / serving · 16 servings / bottle
$0.75 / serving · 60 servings / bottle
$0.63 / serving · 60 servings / bottle
$1.56 / serving · 32 servings / bottle
The rest of the lineup we have ranked from this brand.
$0.21 / serving · 100 servings / container
$1.50 / serving · 30 servings / container
$1.33 / serving · 30 servings / container
$1.00 / serving · 20 servings / container
$1.00 / serving · 30 servings / container
$1.17 / serving · 30 servings / container
$1.33 / serving · 30 servings / container
