Amino Acids

Amino Acids

  • 100% Soy Protein Isolate Powder 100% Soy Protein Isolate Powder

    Hard Rhino

    100% Soy Protein Isolate Powder

    As low as $12.99
    Soy Protein Isolate (SPI) is a concentrated source of high-quality soy protein. SPI supplies the necessary amino acids, including the essential amino acids, to help support muscle growth. In fact, research shows that SPI is just as effective as whey...
    As low as $12.99
  • Out of Stock
    100% Whey Protein Concentrate Powder 100% Whey Protein Concentrate Powder

    Hard Rhino

    100% Whey Protein Concentrate Powder

    $14.99
    Hard Rhino 100% Whey Protein Concentrate (unflavored) is a powder form with improved solubility in water, available in multiple sizes. Our Whey Protein Concentrate 80% (unflavored) is produced in the USA using a cold ultrafiltration membrane...
    $14.99
  • 100% Whey Protein Isolate Powder 100% Whey Protein Isolate Powder

    Hard Rhino

    100% Whey Protein Isolate Powder

    As low as $21.99
    Hard Rhino 100% Whey Protein Isolate (unflavored) is a powder form with improved solubility in water, available in multiple sizes and flavors such as Chocolate Mint, Orange Cream, Strawberry, Unflavored, and Vanilla. Our Whey Protein Isolate 90%...
    As low as $21.99
  • Acetyl L-Carnitine (ALCAR) Powder Acetyl L-Carnitine (ALCAR) Powder

    Hard Rhino

    Acetyl L-Carnitine (ALCAR) Powder

    As low as $17.99
    Acetyl-L-carnitine (ALCAR) supplementation is beneficial in many areas including cognitive ability, memory and mood. ALCAR also has superior bioavailability than normal L-carnitine and costs considerably more to manufacture. It is the attached acetyl...
    As low as $17.99
  • BCAA 2:1:1 Instantized Powder BCAA 2:1:1 Instantized Powder

    Hard Rhino

    BCAA 2:1:1 Instantized Powder

    As low as $11.99
    Hard Rhino BCAA 2:1:1 Instantized (unflavored) is a powder form with improved solubility in water, available in multiple sizes and flavors such as Blue Raspberry, Fruit Punch, and Unflavored. Branched-Chain Amino Acids, better known as BCAAs, are...
    As low as $11.99
  • Beta-Alanine Powder Beta-Alanine Powder

    Hard Rhino

    Beta-Alanine Powder

    As low as $11.99
    Hard Rhino Beta Alanine (unflavored) is a pure form powder with no excipients or fillers, available in multiple sizes and flavors. Beta-Alanine is a modified version of Alanine the amino acid. It has shown to enchance musclar endurance along with...
    As low as $11.99
  • D-Aspartic Acid (DAA) Powder D-Aspartic Acid (DAA) Powder

    Hard Rhino

    D-Aspartic Acid (DAA) Powder

    As low as $9.99
    Hard Rhino D-Aspartic Acid (unflavored) is a pure form powder with no excipients or fillers, available in multiple sizes. D-Aspartic Acid is one of the enantiomers of the amino acid known as Aspartate, where the common dietary enantiomer is...
    As low as $9.99
  • GABA Gamma Aminobutyric Acid Powder GABA Gamma Aminobutyric Acid Powder

    Hard Rhino

    GABA Gamma Aminobutyric Acid Powder

    As low as $8.99
    ​Gamma Aminobutyric Acid Powder (GABA) is required as an inhibitory neurotransmitter to block the transmission of an impulse from one cell to another in the central nervous system, which prevents over-firing of the nerve cells. In the human brain, it has...
    As low as $8.99
  • L-Arginine Alpha Ketoglutarate AAKG Powder L-Arginine Alpha Ketoglutarate AAKG Powder

    Hard Rhino

    L-Arginine Alpha Ketoglutarate AAKG Powder

    As low as $9.99
    L-Arginine is a versatile amino acid serving as a precursor for the manufacturing of proteins, nitric oxide, urea, glutamate, and creatine in the body. Increased L-Arginine in the body may lead to an increase of Nitric Oxide (NO) production, which may...
    As low as $9.99
  • L-Arginine Powder L-Arginine Powder

    Hard Rhino

    L-Arginine Powder

    As low as $8.99
    L-Arginine is a versatile amino acid serving as a precursor for the manufacturing of proteins, nitric oxide, urea, glutamate, and creatine in the body. Increased L-Arginine in the body may lead to an increase of Nitric Oxide (NO) production, which may...
    As low as $8.99
  • Out of Stock
    L-Carnitine Powder L-Carnitine Powder

    Hard Rhino

    L-Carnitine Powder

    $12.99
    L-Carnitine is a non-essential amino acid produced by the body from Lysine and Methionine. L-Carnitine may play a role in the transport of fatty acids to the mitochondria which is then used as a fuel source.† Research has shown that during...
    $12.99
  • L-Citrulline DL-Malate 1:1 Powder L-Citrulline DL-Malate 1:1 Powder

    Hard Rhino

    L-Citrulline DL-Malate 1:1 Powder

    As low as $8.99
    Citrulline Malate is an amino acid with the main benefits of muscle growth, sustained muscle protein synthesis, and post-training recovery. All of these benefits are attributed to elevated blood arginine levels which have lead to greater Nitric Oxide...
    As low as $8.99
  • L-Citrulline DL-Malate 2:1 Powder L-Citrulline DL-Malate 2:1 Powder

    Hard Rhino

    L-Citrulline DL-Malate 2:1 Powder

    As low as $9.99
    Citrulline Malate is an amino acid with the main benefits of muscle growth, sustained muscle protein synthesis, and post-training recovery. All of these benefits are attributed to elevated blood arginine levels which have lead to greater Nitric Oxide...
    As low as $9.99
  • L-Citrulline Powder L-Citrulline Powder

    Hard Rhino

    L-Citrulline Powder

    As low as $11.50
    L-Citrulline is an amino acid with the main benefits of muscle growth, sustained muscle protein synthesis, and post-training recovery. All of these benefits are attributed to elevated blood arginine levels which have lead to greater Nitric Oxide (NO)...
    As low as $11.50
  • L-Glutamine Powder L-Glutamine Powder

    Hard Rhino

    L-Glutamine Powder

    As low as $8.99
    L-Glutamine is one of the 20 essential amino acids and is considered the most abundant free amino acid in the body. It is believed to be involved with protein synthesis and plays an important role in hydrating muscle cells. Glutamine is believed to...
    As low as $8.99
  • L-Glycine Powder L-Glycine Powder

    Hard Rhino

    L-Glycine Powder

    As low as $13.99
    Glycine is a non-essential amino acid necessary in the formation of muscle tissue. Glycine also helps the body convert glucose into energy. It also assists in the regulation of blood sugar levels is necessary for a healthy and normally functioning...
    As low as $13.99
  • L-Lysine Powder L-Lysine Powder

    Hard Rhino

    L-Lysine Powder

    As low as $6.99
    Lysine is an essential amino acid, meaning that it is vital to human health but cannot be manufactured by the body. Due to this reason, lysine must be obtained from food or supplements. In the body, lysine is used to produce acetyl-CoA, a significant...
    As low as $6.99
  • L-Ornithine Alpha Ketoglutarate (OKG) Powder L-Ornithine Alpha Ketoglutarate (OKG) Powder

    Hard Rhino

    L-Ornithine Alpha Ketoglutarate (OKG) Powder

    As low as $17.99
    Hard Rhino L-Ornithine Alpha Ketoglutarate (OKG) (unflavored) is a pure form powder with no excipients or fillers, available in multiple sizes. L-Ornithine is a nonprotein amino acid and plays a intermediate role in the urea cycle in which the...
    As low as $17.99
  • L-Theanine Powder L-Theanine Powder

    Hard Rhino

    L-Theanine Powder

    As low as $22.95
    L-Theanine is an amino acid commonly found in Green Tea leaves and derived from the leaves. This amino acid has shown to help with alertness, calming & soothing effects, and blocks the excess binding of Glutamic Acid to Glutamate receptors in the...
    As low as $22.95
  • L-Tyrosine Powder L-Tyrosine Powder

    Hard Rhino

    L-Tyrosine Powder

    As low as $10.99
    Tyrosine is a nonessential amino acid the body makes from another amino acid called phenylalanine. It is an essential component for the production of several important brain chemicals called neurotransmitters. Tyrosine also helps produce melanin and...
    As low as $10.99