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What's Inside BloodPril

The three amino acids on the label, what each one is and where it comes from.

By BloodPril Editorial TeamUpdated November 1, 2026
Quick answer

BloodPril lists a 500 mg blend of three amino acids: L-Citrulline DL-Malate, L-Arginine (Alpha-Ketoglutarate) and L-Arginine HCL, plus a plant-based capsule shell and two fillers. The Supplement Facts panel on the bottle carries the serving details.

01

L-Citrulline DL-Malate

An amino acid first isolated from watermelon, paired here with malic acid, a fruit acid found in apples.

02

L-Arginine (Alpha-Ketoglutarate)

L-arginine is an amino acid found in protein foods such as poultry, dairy, nuts and seeds, listed here as its alpha-ketoglutarate form.

03

L-Arginine HCL

The hydrochloride form of L-arginine, a common way for amino acids to be presented on a supplement label.

04

Other Ingredients

Hydroxypropyl methylcellulose (the plant-based capsule shell), microcrystalline cellulose and magnesium stearate.

How to read the list

The names above come straight from the label. Ingredient lists reward a slow read: what each item is, where it comes from and how it is presented. Our guide to the three-ingredient lineup walks through that step by step, and what a 500 mg blend tells you adds background.

Where the ingredients come from

From watermelon rinds to protein foods, each ingredient has its own story. The amino acid basics guide traces where each one comes from, and the NIH Office of Dietary Supplements publishes fact sheets at ods.od.nih.gov.

Food connections

Amino acids are everyday nutrients. Read about amino acids in everyday foods and the other ingredients list for plain-English context.

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FAQ

Quick answers

The brand lists a 500 mg blend of L-Citrulline DL-Malate, L-Arginine (Alpha-Ketoglutarate) and L-Arginine HCL. Per-ingredient amounts are not itemized. Other ingredients are hydroxypropyl methylcellulose, microcrystalline cellulose and magnesium stearate.

The brand states BloodPril is made in the USA in an FDA-registered, GMP facility. See our badge guide.

Our label guide covers the basics, and the FDA publishes background on dietary supplement labeling.
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