You're currently on:

Subscribe to RSS Feed

Amino Acids

Amino acids are molecules containing an amine group, a carboxylic acid group and a side-chain that varies between different amino acids. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen. They are particularly important in biochemistry, where the term usually refers to alpha-amino acids.

An alpha-amino acid has the generic formula H2NCHRCOOH, where R is an organic substituent; the amino group is attached to the carbon atom immediately adjacent to the carboxylate group. Other types of amino acid exist when the amino group is attached to a different carbon atom; for example, in gamma-amino acids the carbon atom to which the amino group attaches is separated from the carboxylate group by two other carbon atoms. The various alpha-amino acids differ in which side-chain (R-group) is attached to their alpha carbon, and can vary in size from just one hydrogen atom in glycine to a large heterocyclic group in tryptophan. Shop A2Z Discount Vitamins and save on our discount amino acid products.

8 Item(s) Show per page
View as: Grid  List  Sort by Set Descending Direction

  1. Source Natural L-Citrulline 500mg 60 Capsules

    Source Natural L-Citrulline 500mg 60 Capsules

    Retail Price: $15.99

    A2Z Price: $6.01

    63% Discount

  2. Source Naturals GABA Calm, 60 Tablets

    Source Naturals GABA Calm, 60 Tablets

    Retail Price: $16.50

    A2Z Price: $10.56

    36% Discount

  3. Source Naturals L-Tryptophan 500mg 120 Tablets

    Source Naturals L-Tryptophan 500mg 120 Tablets

    Retail Price: $56.99

    A2Z Price: $18.39

    68% Discount

  4. Source Naturals L-Tryptophan, 500 mg, 60 Tablets

    Source Naturals L-Tryptophan, 500 mg, 60 Tablets

    Retail Price: $29.49

    A2Z Price: $10.19

    66% Discount

  1. TwinLab L-Glutamine 500mg 100 Capsules

    TwinLab L-Glutamine 500mg 100 Capsules

    Retail Price: $20.99

    A2Z Price: $7.56

    64% Discount

  2. Twinlab L-Glutamine, 100 mg, 60 Capsules

    Twinlab L-Glutamine, 100 mg, 60 Capsules

    Retail Price: $22.59

    A2Z Price: $13.01

    43% Discount

  3. Twinlab Multi Mineral, 180 Capsules

    Twinlab Multi Mineral, 180 Capsules

    Retail Price: $19.95

    A2Z Price: $12.37

    38% Discount

  4. Twinlab Paba Caps, 500 mg, 100 Capsules

    Twinlab Paba Caps, 500 mg, 100 Capsules

    Retail Price: $14.69

    A2Z Price: $7.17

    52% Discount

8 Item(s) Show per page
View as: Grid  List  Sort by Set Descending Direction