Supplements

L-Tryptophan, an essential amino acid, has to be obtained in the diet or in supplement form.

While L-serine is classified as a non- essential amino acid, it is nonetheless important to a variety of structures and functions within your body. Cell proliferation, nervous system functions and brain function all require adequate L-serine. It's considered non- essential...

Introducing our first economical, high- quality L-proline supplement. An amino acid manufactured in the liver, L-Proline serves as a precursor to hydroxyproline, which is an essential component of collagen tissues that helps maintain their structural characteristics. L-Proline is involved in...

The free-form amino acid L-ornithine is a key player in the urea cycle, which helps eliminate excess nitrogen and synthesize arginine, another important amino acid. Swanson Premium Brand L- Ornithine is a pure form of this vital amino acid, suitable...

Swanson L-Methionine features one of the nine essential amino acids with many important functions in the body. As a lipotropic agent, it plays a fundamental role in healthy liver function, helping this vital organ process fats efficiently. In addition, L-Methionine...

Supports healthy detoxification    Features Setria glutathione, which increases glutathione levels    Promotes immune health    Boosts antioxidant activityIf you only take one antioxidant, make it glutathione. This powerful tripeptide is the body's master antioxidant and detoxifier. Present within every cell, glutathione is...

Supports the body's defenses against oxidative stress and cell damageOffers antioxidant support to neutralize free radicalsProvides detoxification support Arm your body for the war against free radicals with Swanson L-glutathione! A protein made up of three amino acids, L-glutathione is...

Supports muscle growth and recoveryHelps maintain healthy memory and cognitive functionProvides fuel for workoutSupports GI health Glutamine is the most abundant free amino acid found in the muscles of the body. Its ability to easily pass the blood-brain barrier makes...

Move over creatine! Swanson L-Citrulline Malate kicks in Krebs cycle and beyond. It's bursting onto the fitness scene in a big way, helping people young and old break through the boundaries of personal health and fitness. L- Citrulline Malate is...

May help convert fat into energyPromotes lean muscle development and fat lossSupports exercise recovery Unlock your potential for a lean, muscular body with Swanson Premium L-Carnitine! A favorite among dieters and bodybuilders, this amazing amino acid helps the body burn...

Sports performancePairs with methionine and glycine to aid the making of energy in your musclesSupports blood pressure already within the normal range Get fundamental amino acid nutrition for less with Swanson L-Arginine. Our L-arginine makes an economical and effective addition...

Sports performancePairs with methionine and glycine to aid the making of energy in your musclesSupports blood pressure already within the normal range Get fundamental amino acid nutrition for less with Swanson L-Arginine. Our L-arginine makes an economical and effective addition...