HerbIQ Reference Library / Compound Monographs
Active Compound Monographs
Dedicated technical dossiers detailing the molecular profile and evidence weight of individual plant bioactives
Where the Active Compound Index provides a high-level master matrix of the plant kingdom, these Compound Monographs serve as our definitive, independent deep dives. Each entry functions as a standalone scientific reference record—drilling past the surface to map out exact chemical identities, verified CAS numbers, and botanical source biologies with strict clinical objectivity.
Built specifically for product formulators, R&D teams, and researchers, this compendium translates raw plant chemistry into actionable data. Explore the individual monographs below to examine the detailed molecular structures and honest empirical data powering high-performance botanical nutrition.
HerbIQ - Composés
Browse monographs by letter
L-Pyroglutamic Acid
Amino acid derivative · Cyclic lactam of glutamic acid from Thermal cyclisation of glutamate. A skin natural-moisturising-factor humectant, usually as sodium PCA. Claim strength: High.
L-Pyroglutamic Acid
Amino acid derivative · Cyclic lactam of glutamic acid from Thermal cyclisation of glutamate. A skin natural-moisturising-factor humectant, usually as sodium PCA. Claim strength: High.
L-Norvaline
Amino acid · Non-proteinogenic · Straight-chain isomer of valine from Synthesis or fermentation. In vitro arginase inhibition; no human efficacy evidence, unresolved cytotoxicity signal. Claim strength: Emerging.
L-Norvaline
Amino acid · Non-proteinogenic · Straight-chain isomer of valine from Synthesis or fermentation. In vitro arginase inhibition; no human efficacy evidence, unresolved cytotoxicity signal. Claim strength: Emerging.
L-Lysine Acetate
Amino acid salt · Acetate · 70.9% free base from Neutralised fermentation-derived lysine. Base-generating where the hydrochloride is acid-generating. Claim strength: High.
L-Lysine Acetate
Amino acid salt · Acetate · 70.9% free base from Neutralised fermentation-derived lysine. Base-generating where the hydrochloride is acid-generating. Claim strength: High.
L-Hydroxyproline
Amino acid · Non-proteinogenic · Post-translational product of proline from Collagen or gelatin hydrolysate, or fermentation. Cannot be incorporated into collagen. Claim strength: High.
L-Hydroxyproline
Amino acid · Non-proteinogenic · Post-translational product of proline from Collagen or gelatin hydrolysate, or fermentation. Cannot be incorporated into collagen. Claim strength: High.
L-Asparagine Monohydrate
Amino acid · Non-essential · Amide, hydrated from Fermentation or enzymatic amidation. The limiting precursor of acrylamide in heated foods. Claim strength: High.
L-Asparagine Monohydrate
Amino acid · Non-essential · Amide, hydrated from Fermentation or enzymatic amidation. The limiting precursor of acrylamide in heated foods. Claim strength: High.
L-Tryptophan
Amino acid · Essential · Aromatic indole from Fermentation or enzymatic conversion. 1989 EMS history makes impurity profile, not assay, the quality question. Claim strength: High.
L-Tryptophan
Amino acid · Essential · Aromatic indole from Fermentation or enzymatic conversion. 1989 EMS history makes impurity profile, not assay, the quality question. Claim strength: High.
L-Arginine Alpha-Ketoglutarate
Amino acid salt · 2:1 ketoglutarate · 70.5% arginine from Combined fermentation and synthetic ions. Performance trials came back null, not merely thin. Claim strength: High.
L-Arginine Alpha-Ketoglutarate
Amino acid salt · 2:1 ketoglutarate · 70.5% arginine from Combined fermentation and synthetic ions. Performance trials came back null, not merely thin. Claim strength: High.
L-Arginine L-Aspartate
Amino acid salt · 1:1 aspartate · 56.7% arginine from Combined fermentation-derived ions. Chloride-free and near-neutral in solution. Claim strength: High.
L-Arginine L-Aspartate
Amino acid salt · 1:1 aspartate · 56.7% arginine from Combined fermentation-derived ions. Chloride-free and near-neutral in solution. Claim strength: High.
L-Ornithine L-Aspartate
Amino acid salt · 1:1 aspartate · 49.8% ornithine from Combined fermentation-derived ions. A registered medicine in several markets. Claim strength: Moderate.
L-Ornithine L-Aspartate
Amino acid salt · 1:1 aspartate · 49.8% ornithine from Combined fermentation-derived ions. A registered medicine in several markets. Claim strength: Moderate.
L-Ornithine HCl
Amino acid salt · Hydrochloride · 78.4% free base from Acidified fermentation-derived ornithine. The free base deliquesces; chloride fraction is the highest of the series. Claim strength: High.
L-Ornithine HCl
Amino acid salt · Hydrochloride · 78.4% free base from Acidified fermentation-derived ornithine. The free base deliquesces; chloride fraction is the highest of the series. Claim strength: High.
L-Ornithine
Amino acid · Non-proteinogenic · Urea cycle carrier from Fermentation, or enzymatic conversion from arginine. Regenerated by the cycle, not consumed. Claim strength: Moderate.
L-Ornithine
Amino acid · Non-proteinogenic · Urea cycle carrier from Fermentation, or enzymatic conversion from arginine. Regenerated by the cycle, not consumed. Claim strength: Moderate.
L-Glutamic Acid
Amino acid · Non-essential · Acidic dicarboxylic from Corynebacterium glutamicum fermentation — molasses or starch. Not MSG; the free acid is barely soluble. Claim strength: High.
L-Glutamic Acid
Amino acid · Non-essential · Acidic dicarboxylic from Corynebacterium glutamicum fermentation — molasses or starch. Not MSG; the free acid is barely soluble. Claim strength: High.
L-Aspartic Acid
Amino acid · Non-essential · Acidic dicarboxylic from Enzymatic addition of ammonia to fumaric acid. Urea cycle and malate–aspartate shuttle; aspartame feedstock. Claim strength: High.
L-Aspartic Acid
Amino acid · Non-essential · Acidic dicarboxylic from Enzymatic addition of ammonia to fumaric acid. Urea cycle and malate–aspartate shuttle; aspartame feedstock. Claim strength: High.
L-Alanine
Amino acid · Non-essential · Methyl side chain from Fermentation or enzymatic decarboxylation of aspartate. Not beta-alanine; no carnosine role. Claim strength: High.
L-Alanine
Amino acid · Non-essential · Methyl side chain from Fermentation or enzymatic decarboxylation of aspartate. Not beta-alanine; no carnosine role. Claim strength: High.
L-Proline
Amino acid · Non-essential · Cyclic imino acid from Fermentation — grain. Makes the collagen triple helix possible; markedly hygroscopic. Claim strength: High.
L-Proline
Amino acid · Non-essential · Cyclic imino acid from Fermentation — grain. Makes the collagen triple helix possible; markedly hygroscopic. Claim strength: High.
L-Serine
Amino acid · Non-essential · Hydroxymethyl-bearing from Fermentation or enzymatic conversion from glycine. Principal one-carbon donor; sphingolipid backbone. Claim strength: High.
L-Serine
Amino acid · Non-essential · Hydroxymethyl-bearing from Fermentation or enzymatic conversion from glycine. Principal one-carbon donor; sphingolipid backbone. Claim strength: High.
L-Carnitine Fumarate
Carnitine salt · 1:1 fumarate · 58.1% carnitine from Combined synthesis and synthetic fumaric acid. Lower density, achiral counter-ion, TCA intermediate. Claim strength: High.
L-Carnitine Fumarate
Carnitine salt · 1:1 fumarate · 58.1% carnitine from Combined synthesis and synthetic fumaric acid. Lower density, achiral counter-ion, TCA intermediate. Claim strength: High.
L-Carnitine L-Tartrate
Carnitine salt · 2:1 L-tartrate · 68.2% carnitine from Combined synthesis and wine-derived tartaric acid. Non-hygroscopic — the reason dry carnitine formats exist. Claim strength: High.
L-Carnitine L-Tartrate
Carnitine salt · 2:1 L-tartrate · 68.2% carnitine from Combined synthesis and wine-derived tartaric acid. Non-hygroscopic — the reason dry carnitine formats exist. Claim strength: High.
L-Carnitine
Quaternary amine · Conditionally essential · Mitochondrial fatty acid carrier from Chemoenzymatic synthesis or fermentation. Free base deliquesces; D-carnitine inhibits transport. Claim strength: High.
L-Carnitine
Quaternary amine · Conditionally essential · Mitochondrial fatty acid carrier from Chemoenzymatic synthesis or fermentation. Free base deliquesces; D-carnitine inhibits transport. Claim strength: High.
L-Citrulline DL-Malate
Amino acid salt · Citrulline with DL-malic acid from Fermentation-derived citrulline with synthetic malate. Undeclared 2:1 or 1:1 ratio swings citrulline by a quarter. Claim strength: Moderate.
L-Citrulline DL-Malate
Amino acid salt · Citrulline with DL-malic acid from Fermentation-derived citrulline with synthetic malate. Undeclared 2:1 or 1:1 ratio swings citrulline by a quarter. Claim strength: Moderate.
L-Cysteine HCl Monohydrate
Amino acid salt · Hydrochloride monohydrate · 69.0% free base from Acidified fermentation-derived cysteine. Low pH suppresses thiol oxidation; E920 dough conditioner. Claim strength: High.
L-Cysteine HCl Monohydrate
Amino acid salt · Hydrochloride monohydrate · 69.0% free base from Acidified fermentation-derived cysteine. Low pH suppresses thiol oxidation; E920 dough conditioner. Claim strength: High.
L-Lysine HCl
Amino acid salt · Hydrochloride · exactly 80% free base from Acidified fermentation-derived lysine. Feed declares free base; supplements do not agree. Claim strength: High.
L-Lysine HCl
Amino acid salt · Hydrochloride · exactly 80% free base from Acidified fermentation-derived lysine. Feed declares free base; supplements do not agree. Claim strength: High.
L-Arginine HCl
Amino acid salt · Hydrochloride · 82.7% free base from Acidified fermentation-derived arginine. Workable pH for liquids where the free base is not. Claim strength: High.
L-Arginine HCl
Amino acid salt · Hydrochloride · 82.7% free base from Acidified fermentation-derived arginine. Workable pH for liquids where the free base is not. Claim strength: High.
L-Phenylalanine
Amino acid · Essential · Aromatic from Escherichia coli fermentation — grain. Mandatory PKU declaration in most markets. Claim strength: High.
L-Phenylalanine
Amino acid · Essential · Aromatic from Escherichia coli fermentation — grain. Mandatory PKU declaration in most markets. Claim strength: High.
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Compound Monographs
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