Amino Acid Supplements — Forms & Bioavailability
67 ingredients in the amino acid category. Click any ingredient to see all available forms, bioavailability rankings, and dosing guidance.
Acetyl L-Carnitine (as Acetyl L-Carnitine HCL)
1 form
ALCAR
1 form
ALCAR Arginate
1 form
ALCAR HCl (alt)
1 form
Betaine Hydrochloride
1 form
Carnitine Fumarate
1 form
Citrulline Ethyl Ester
1 form
Citrulline Malate 2:1
1 form
D-Chiro-Inositol
1 form
DL-Phenylalanine
1 form
Fish Oil
1 form
GABA (pharma-grade alt)
1 form
Gamma Aminobutyric Acid
1 form
Glutamine
1 form
L-Alanine
1 form
L-Arginine
1 form
L-Arginine (Base)
1 form
L-Arginine Alpha-Ketoglutarate (AAKG)
1 form
L-Arginine Pyroglutamate
1 form
L-Asparagine
1 form
L-Aspartic Acid
1 form
L-Carnitine Fumarate (alt grade)
1 form
L-Carnosine
1 form
L-Citrulline
1 form
L-Citrulline Base
1 form
L-Cysteine
1 form
L-Cysteine (Base Form)
1 form
L-Cystine
1 form
L-Glutamic Acid
1 form
L-Glutamine
1 form
L-Glutamine USP
1 form
L-Glycine
1 form
L-Histidine
1 form
L-Isoleucine
1 form
L-Isoleucine USP
1 form
L-Leucine
1 form
L-Leucine USP
1 form
L-Lysine
1 form
L-Methionine
1 form
L-Methionine (USP)
1 form
L-Norvaline
1 form
L-Ornithine
1 form
L-Ornithine HCl
1 form
L-Phenylalanine USP
1 form
L-Proline
1 form
L-Serine
1 form
L-Theanine
1 form
L-Theanine (alt form)
1 form
L-Threonine
1 form
L-Tryptophan
1 form
L-Tyrosine
1 form
L-Tyrosine USP (alt grade)
1 form
L-Valine
1 form
L-Valine USP
1 form
L‑Ornithine Alpha‑Ketoglutarate (OKG)
1 form
N-Acetyl Cysteine
1 form
N-Acetyl-L-Cysteine (NAC)
2 forms
NALT
1 form
Ornithine AKG
1 form
PharmaGABA
1 form
S-Adenosyl Methionine
1 form
Suntheanine
1 form
Taurine
1 form
Taurine (USP Grade)
1 form
Taurine USP
1 form
Trimethyl Glycine (TMG) - Betaine Anhydrous
1 form
Trimethylglycine
1 form