L-Citrulline capsules by BulkSupplements.com is one of the selections of amino acids supplement. Citrulline is an amino acid that is found in watermelon and considered nonessential, meaning the body can produce it on its own.* Each capsule of this product contains 375mg of L-Citrulline and take about 8 capsules (3000mg of L-Citrulline) per serving. And, we sell L-Arginine gelatin capsules in 240 Count stored in bottles, where it contains 30 days or 1 month supply. Our L-Citrulline capsules, a citrulline supplement, contains rice flour and it's not filler free. And, our citrulline supplement is dairy free, soy free, yeast free, no added sugar. All products by BulkSupplements.com are manufactured according to cGMP Standards to ensure the highest quality for manufacturing, packaging, labeling, and holding operations. We work with a third-party laboratory that test our products at multiple stages during production, from raw material to finished products, and ensures compliance, standards, and consistency.