Filters

Essential Amino Acid

Find high-quality amino acid supplements from industry-leading brands

Essential Amino Acid

Essential Amino Acid

Find high-quality amino acid supplements from industry-leading brands

86 products

Showing 49 - 86 of 86 products

Showing 49 - 86 of 86 products
Sort by:
Save 17%
NOW Acetyl-L-Carnitine 500 mg 100 VCaps Image 1
Sale price$30.93 Regular price$37.12 Unit price ($0.30/Serving)
NOW Acetyl-L-Carnitine 500 mg (100 VCaps)
NOW Only A Few Left
Save 17%
NOW Arginine & Citrulline 120 VCaps Image 1
Sale price$34.72 Regular price$41.66 Unit price ($0.57/Serving)
NOW Arginine & Citrulline (120 VCaps)
NOW In stock
Save 17%
NOW L-Arginine 500 & Ornithine 250 mg 100 Capsules Image 1
Sale price$32.13 Regular price$38.56 Unit price ($0.64/Serving)
NOW L-Arginine 500 mg & Ornithine 250 mg (100 Capsules)
NOW Only A Few Left
Save 17%
NOW L-Arginine 500 mg 100 Capsules Image 1
Sale price$18.13 Regular price$21.76 Unit price ($0.36/Serving)
NOW L-Arginine 500 mg (100 Capsules)
NOW Only A Few Left
Save 17%
NOW L-Arginine 500 mg 250 Capsules Image 1
Sale price$37.60 Regular price$45.12 Unit price ($0.30/Serving)
NOW L-Arginine 500 mg (250 Capsules)
NOW In stock
Save 17%
NOW L-Arginine Double Strength 1000 mg 120 Tablets Image 1
Sale price$39.47 Regular price$47.36 Unit price ($0.32/Serving)
NOW L-Arginine Double Strength 1000 mg (120 Tablets)
NOW In stock
Save 17%
NOW L-Carnitine 500 mg Capsules Image 1NOW L-Carnitine 500 mg Capsules Image 2
Sale priceFrom $19.57 Regular price$23.48 Unit price ($0.27/Serving)
NOW L-Carnitine 500 mg (Capsules)
Save 17%
NOW L-Carnitine Double Strength 1000 mg 100 Tablets Image 1
Sale price$52.67 Regular price$63.20 Unit price ($0.52/Serving)
NOW L-Carnitine Double Strength 1000 mg (100 Tablets)
NOW Only A Few Left
Save 17%
NOW L-Citrulline 750 mg 90 VCaps Image 1
Sale price$31.80 Regular price$38.16 Unit price ($0.70/Serving)
NOW L-Citrulline 750 mg (90 VCaps)
NOW Only A Few Left
Save 17%
NOW L-Citrulline Pure 113 g Image 1
Sale price$26.67 Regular price$32.00 Unit price ($0.35/Serving)
NOW L-Citrulline Pure (113 g)
NOW Only A Few Left
Save 17%
NOW L-Lysine 500 mg 250 Tablets Image 1
Sale price$25.85 Regular price$31.02 Unit price ($0.10/Serving)
NOW L-Lysine 500 mg (250 Tablets)
NOW Only A Few Left
Save 17%
NOW L-Lysine 500 mg Capsules Image 1NOW L-Lysine 500 mg Capsules Image 2
Sale priceFrom $12.80 Regular price$15.36 Unit price ($0.10/Serving)
NOW L-Lysine 500 mg (Capsules)
Save 17%
NOW L-Lysine Double Strength 1000 mg 100 Tablets Image 1
Sale price$18.67 Regular price$22.40 Unit price ($0.18/Serving)
NOW L-Lysine Double Strength 1000 mg (100 Tablets)
NOW In stock
Save 17%
NOW L-Methionine 500 mg with B-6 100 Capsules Image 1
Sale price$28.47 Regular price$34.16 Unit price ($0.56/Serving)
NOW L-Methionine 500 mg with B-6 (100 Capsules)
NOW Sold out
Notify me
Save 17%
NOW L-Ornithine 500 mg 120 VCaps Image 1
Sale price$30.03 Regular price$36.04 Unit price ($0.75/Serving)
NOW L-Ornithine 500 mg (120 VCaps)
NOW Sold out
Notify me
Save 17%
NOW L-Phenylalanine 500 mg 120 VCaps Image 1
Sale price$22.25 Regular price$26.70 Unit price ($0.18/Serving)
NOW L-Phenylalanine 500 mg (120 VCaps)
NOW Only A Few Left
Save 17%
NOW L-Proline 500 mg 120 VCaps Image 1
Sale price$25.23 Regular price$30.28 Unit price ($0.42/Serving)
NOW L-Proline 500 mg (120 VCaps)
NOW Only A Few Left
Save 17%
NOW L-Theanine 100 mg 90 VCaps Image 1
Sale price$31.78 Regular price$38.14 Unit price ($0.35/Serving)
NOW L-Theanine 100 mg (90 VCaps)
NOW Only A Few Left
Save 17%
NOW L-Tryptophan 220 mg 60 VCaps Image 1
Sale price$14.73 Regular price$17.68 Unit price ($0.24/Serving)
NOW L-Tryptophan 220 mg (60 VCaps)
NOW Only A Few Left
Save 17%
NOW L-Tyrosine 500 mg Capsules Image 1NOW L-Tyrosine 500 mg Capsules Image 2
Sale priceFrom $12.28 Regular price$14.74 Unit price ($0.18/Serving)
NOW L-Tyrosine 500 mg (Capsules)
Save 17%
NOW Sports L-Arginine 454 g Image 1
Sale price$62.83 Regular price$75.40 Unit price ($0.64/Serving)
NOW Sports L-Arginine (454 g)
NOW In stock
Save 17%
NOW Taurine 227 g Image 1
Sale price$28.43 Regular price$34.12 Unit price ($0.12/Serving)
NOW Taurine (227 g)
NOW Only A Few Left
Save 17%
NOW Taurine 1000 mg VCaps Image 1NOW Taurine 1000 mg VCaps Image 2
Sale priceFrom $25.03 Regular price$30.04 Unit price ($0.23/Serving)
NOW Taurine 1000 mg (VCaps)
NOW Sold out
Notify me
Save 17%
NOW Taurine 500 mg (100 Capsules)
Sale price$15.80 Regular price$18.96 Unit price ($0.15/Serving)
NOW Taurine 500 mg (100 Capsules)
NOW Only A Few Left
Save 17%
Nutridom L-Theanine 250 mg 60 VCaps Image 1
Sale price$17.99 Regular price$21.59 Unit price ($0.29/Serving)
Nutridom L-Theanine 250 mg (60 VCaps)
Save 17%
Orange Naturals B-Complex with L-Theanine (45 VCaps)
Sale price$17.99 Regular price$21.59 Unit price ($0.39/Serving)
Orange Naturals B-Complex with L-Theanine (45 VCaps)
Save 17%
Orange Naturals L-Theanine 250 mg with Magnesium (60 VCaps)
Sale price$15.99 Regular price$19.19 Unit price ($0.26/Serving)
Orange Naturals L-Theanine 250 mg with Magnesium (60 VCaps)
Orange Naturals Only A Few Left
Save 17%
Organika L-Lysine 500 mg 90 VCaps Image 1
Sale price$19.99 Regular price$23.99 Unit price ($0.22/Serving)
Organika L-Lysine 500 mg (90 VCaps)
Organika Only A Few Left
Save 17%
Organika L-Theanine 225 mg 90 VCaps Image 1
Sale price$23.99 Regular price$28.79 Unit price ($0.26/Serving)
Organika L-Theanine 225 mg (90 VCaps)
Organika Only A Few Left
Save 17%
Organika L-Theanine 225 mg BONUS SIZE 110 VCaps Image 1
Sale price$23.99 Regular price$28.79 Unit price ($0.21/Serving)
Organika L-Theanine 225 mg BONUS SIZE (110 VCaps)
Organika In stock
Save 17%
Quantum Health SuperLysine+ Cold Sore System Strength 180 Tablets Image 1
Sale price$48.03 Regular price$57.64 Unit price ($0.53/Serving)
Quantum Health SuperLysine+ Cold Sore System Strength (180 Tablets)
Quantum Health In stock
Save 17%
Sisu L-Arginine 1000 mg 90 Tablets Image 1
Sale price$21.95 Regular price$26.34 Unit price ($0.24/Serving)
Sisu L-Arginine 1000 mg (90 Tablets)
Sisu Sold out
Notify me
Save 17%
Sisu L-Lysine 500 mg 90 VCaps Image 1
Sale price$20.83 Regular price$25.00 Unit price ($0.23/Serving)
Sisu L-Lysine 500 mg (90 VCaps)
Sisu In stock
Save 17%
Sisu Stress Rescue 125 mg L-Theanine - Cherry 30 Chewable Tablets Image 1
Sale price$19.58 Regular price$23.50 Unit price ($0.65/Serving)
Sisu Stress Rescue 125 mg L-Theanine - Cherry (30 Chewable Tablets)
Sisu Only A Few Left
Save 17%
Sisu Stress Rescue 250 mg L-Theanine 60 VCaps Image 1
Sale price$49.45 Regular price$59.34 Unit price ($0.82/Serving)
Sisu Stress Rescue 250 mg L-Theanine (60 VCaps)
Sisu In stock
Save 18%
Solaray L-Arginine 1000 mg 30 Tablets Image 1
Sale price$13.99 Regular price$17.07 Unit price ($1.39/Serving)
Solaray L-Arginine 1000 mg (30 Tablets)
Save 17%
Truehope Freeminos 23 Free Form Amino Acids 180 VCaps Image 1
Sale price$67.99 Regular price$81.59 Unit price ($1.13/Serving)
Truehope Freeminos 23 Free Form Amino Acids (180 VCaps)
Truehope In stock
Save 17%
Vitanergy Relaxation Support L-Theanine 100 mg 60 Chewable Tablets Image 1
Sale price$23.99 Regular price$28.79 Unit price ($0.79/Serving)
Vitanergy Relaxation Support L-Theanine 100 mg (60 Chewable Tablets)

Recently viewed

Amino Acids

Amino acids are the building blocks of protein, essential to whole body health. Shop our amino acid formulas for improved recovery, energy, and more.

Amino acids are the building blocks of protein and essential to life, affecting all cells in the body. Shop our amino acid formulas to receive all of the essential amino acids you need to support and maintain overall optimal health.

Your body needs 20 different amino acids to grow and function properly. While all 20 of these are important for your health, only 9 are classified as essential: isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, and arginine.

The term 'essential amino acids' refers to the fact that these amino acids are essential for human health, but cannot be produced by the body. They must be obtained through diet or supplements. Amino acids are the building blocks of proteins, which are essential for the growth, repair, and maintenance of the body's tissues and organs. Without these essential amino acids, the body cannot synthesize the proteins it needs to function properly, leading to various health problems.

Why are essential amino acids important?

These amino acids are essential for a wide range of bodily functions including growth and development, repair and maintenance of body tissues, and the regulation of various metabolic processes. It is important to have a balanced diet that includes a variety of foods rich in these essential amino acids in order to maintain optimal health.

How do we get the essential amino acids?

The essential amino acids can be obtained by consuming a variety of protein-rich foods, such as meat, fish, eggs, dairy products, beans, lentils, and soy products. It is important to note that vegetarians and vegans may need to consume a variety of different plant-based protein sources in order to ensure that they are getting all of the essential amino acids their body needs. You can also supplement with amino acids. However, while essential amino acid supplements can be beneficial in certain situations, they should not be used as a replacement for a balanced diet that includes a variety of whole foods.

Contact Us to see how essential amino acids can benefit you!