Amino Acids

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What are amino acids?

Amino acids are the building blocks of proteins, the second most common substance in the body after water and essential for many internal processes. Proteins are composed of chains of amino acids linked together in different combinations.

Amino acids are classified into two categories: essential and non-essential. The sixty percent of the amino acids that the human body can make of other amino acids we enter through our diet are considered non-essential; The remaining 40 percent must be obtained from nutrition is therefore essential.

Each amino acids has a very specific function in the body and sometimes there's a special need for supplementation, which is why so many amino acids are sold separately, e.g. lysine for better immunity, tryptophan for mood and arginine for muscle-bulding.

PasioOnline offers you a very complete range of amino acids with various therapeutic and / or pure muscle building properties.

On the specific amino acids:

L-Arginine: Unlock the potential of Arginine, a versatile amino acid crucial for nitric oxide production, supporting healthy blood flow, cardiovascular function, and muscle development. Explore the benefits of this essential building block for protein synthesis and discover its role in promoting overall well-being.

L-Citrulline: Elevate your health with Citrulline, a key amino acid known for its role in nitric oxide production, enhancing blood circulation, and promoting endurance. Uncover the benefits of Citrulline in supporting athletic performance, cardiovascular health, and recovery. Energize your body and discover the natural power of this amino acid.

L-Carnitine is a naturally occurring amino acid derivative that plays a crucial role in the production of energy by transporting fatty acids into your cells' mitochondria, which act as engines within your cells, burning these fats to create usable energy. It is often categorized as a conditionally essential amino acid because, under normal circumstances, the body can produce sufficient amounts. However, in certain conditions or during specific stages of life, the body's ability to produce enough L-Carnitine may be limited, making dietary sources or supplements beneficial.

L-Cysteine is a semi-essential amino acid, meaning that while the body can synthesize it from other amino acids under normal conditions, dietary intake is still important for optimal health. It contains a thiol group, which consists of a sulfur atom bonded to a hydrogen atom, making it unique among amino acids. This thiol group is responsible for many of L-Cysteine's biological functions.

L-Cysteine and N-Acetyl-Cysteine (NAC) are related compounds that share similarities but also have distinct differences in their chemical structures and biological properties.

Both L-Cysteine and N-Acetyl-Cysteine are important for various biological functions, NAC offers advantages in terms of stability and absorption, making it a preferred form for supplementation in certain contexts. 

L-Glutamine: Boost your wellness journey with L-Glutamine, a versatile amino acid vital for muscle recovery, immune system support, and gut health. Explore the myriad benefits of this essential nutrient, from promoting a robust immune response to aiding in post-workout recovery. Discover the natural resilience of L-Glutamine for a healthier, stronger you. 

L-Glycine is a non-essential amino acid, meaning the body can produce it on its own. It is the simplest and smallest amino acid, and it serves as a building block for proteins. In addition its role in protein synthesis, L-Glycine has various other functions in the body.

Trimethylglycine, commonly known as betaine, is a compound derived from the amino acid glycine. It is naturally found in various foods, including beets, spinach, whole grains, and seafood. Betaine has several potential health benefits.

L-leucine: Ignite muscle growth with L-Leucine, a potent amino acid renowned for its anabolic properties. As a key component of branched-chain amino acids (BCAAs), L-Leucine stimulates protein synthesis, promoting muscle repair and recovery. Unleash the power of this essential amino acid to fuel your fitness journey and sculpt a stronger, more resilient physique.

Branched-Chain Amino Acids (BCAAs): Supercharge your fitness journey with BCAAs – the ultimate anabolic allies. Leucine, Isoleucine, and Valine, the powerhouse trio, fuel muscle growth, enhance protein synthesis, and accelerate recovery. Elevate your workouts, sculpt lean muscle, and experience the anabolic prowess of BCAAs for peak performance and optimal gains.

L-Taurine : Uncover the unique benefits of L-Taurine, an essential amino acid with diverse roles in supporting cardiovascular health, metabolism, and neurotransmission. From enhancing energy levels to promoting antioxidant defense, explore the versatile qualities of L-Taurine for a holistic approach to well-being. Energize your body and mind with the natural power of this amino acid.

L-Tryptophan is converted to serotonin and melatonin in the body, it plays an important role in promoting relaxation, restful sleep and positive mood.

Jarrow formulas 5-HTP (5-Hydroxytryptophan) is an extract of Griffonia simplicifolia seeds from coastal WestAfrica.  5-HTP is the direct metabolic precursor of serotonin and is important for the production of melatonin. key benefits • pure HPLC verified supplement • instant...
Jarrow 5-HTP (50mg/100mg)
50mg 90 caps 100mg 60 caps
Our brandsJarrow Formulas best beforeFeb 2028
1825 2600 -30%
Available
Jarrow Formulas Acetyl-L-Carnitine 500mg 120 capsules  is a more bioavailable form of L-Carnitine, an amino acid found in high concentration in human brain, nerve, heart, liver and sperm cells. Acetyl L-Carnitine supports energy production by participating in the metabolism of fatty acids in...
Our brandsJarrow Formulas best beforeMay 2028
3075 4400 -30%
Available
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AOR ALCAR   is N-acetyl-L-carnitine, a form of L-carnitine found ubiquitously in mammalian tissues that is important for energy production. ALCAR is unique because it is able to cross the blood-brain barrier more easily than L-carnitine, making it more effective for enhancing cognitive...
2875 3600 -20%
Available
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NOW Arginine + Ornithine are free form amino acids that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine phosphate, needed to produce ATP, and the synthesis of nitric oxide, a secondary messenger involved in blood flow....
Our brandsNOW Foods best beforeSep 2027
1800 2400 -25%
Available
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NOW L-Arginine is an amino acid that plays an important role in several important pathways, including the synthesis of proteins, the production of creatine phosphate (needed to produce ATP) and the synthesis of nitric oxide, a secondary messenger involved in blood flow. who can benefit...
Our brandsNOW Foods best beforeDec 2029
2325 3100 -25%
Available
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Jarrow Formulas Arginine-citrulline Sustain ™   supports Nitric Oxide production and enhances blood flow. what does Arginine-Citrulline Sustain do?  Jarrow Formulas Arginine-Citrulline Sustain is a synergistic combination of two amino acids to support nitric oxide (NO) production, blood...
Our brandsJarrow Formulas best beforeDec 2027
2525 3600 -30%
Available
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Arthro-5  is the most complete and strongest supplement in its category of joint protection. In order to develop Arthro-5, exercise physiologist Kris Kuiper evaluated countless well known and lesser known ingredients. Based on recommendations from fellow scientists he selected 6 ingredients...
Our brandsPower Supplements best beforeJune 2027
4000
Available
+
AOR maxMethyl contains methyl group (CH3) donors from Methyl B12, TMG and Folic Acid (B11), plus vitamin B6 for additional reduction of homocysteine. Methyl groups convert homocysteine, a toxic amino acid, into methionine, which is an essential amino acid. Methylation is inhibited by a lack...
3675 4600 -20%
Available
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AOR Carnitine 500 mg 120 capsules  contains L-Carnitine.  enhances energy levels and exercise performance and recovery helps support muscle tissue repair supports antioxidant capacity during post-exercise muscle repair clinically effective dose and form L-Carnitine is an...
2575 3200 -20%
Available
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Carnivore Power is perfect if you want to increase your physical performance by supplementing natural nutrients such as creatine, carnitine, taurine and beta-alanine, which are essential for energy, recovery and muscle strength. Carnivore Power Contains the most important...
Our brandsPower Supplements best beforeJune 2028
2000
Available
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Jarrow Formulas L-Carnosine is a dipeptide that is found in the brain, heart, skin, muscles, kidneys and stomach. who can benefit from L-Carnosine? Vegetarians and anyone interested in anti-aging can benefit from L-carnosine. how does L-carnosine function? L-Carnosine supports...
Our brandsJarrow Formulas best beforeAug 2028
3975 5700 -30%
Available
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Japanese Citrulline  contains L-citrulline , known for its energizing properties and its ability to reduce muscular fatigue. Citrulline has shown to regenerate ATP in muscle ells. Therefore it is clinically used in patients for a faster recovery from surgery as well as by endurance and...
PS Citrulline (180caps/400g)
180 capsules 400 gram
Our brandsPower Supplements best beforeJune 2027
2800
Available
Mammut Creatin Capsules 3,5 g of high-grade creatine monohydrate per portion increases the physical performance during short term, high intensity exercise 240 capsules per can perfect dosage The Creatine Trainingsbooster from Mammut contains 880 mg of creatine monohydrate...
Our brandsMammut Nutrition best beforeJan 2027
2500
Available
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What does Power Supplements Creatine Monohydrate do? Creatine is synthesized in the liver and stored in the major muscles, including cardiac and skeletal tissues. Once inside the muscle cells, creatine is transformed to creatine phosphate (CP), which, as a high energy source for the...
Our brandsPower Supplements best beforeOct 2028
2900
Available
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Mammut Nutrition Essential Amino Acids 250g with 74 % EAA and 2,8 g BCAA per serving optimized with Vitamin B6  vegan ideal after exercise inkcludes a practical dosing spoon Mammut's EAA Powder with its delicious taste of sour apple is ideal for strength and fitness...
Mammut Nutrition EAA 250g
EAA lime-mint
Our brandsMammut Nutrition best beforeApril 2027
1600
Available
Power Supplements Essential Amino Acids 450g Most powerful protein supplement for a workout/training Consider this special mix of essential amino acids (EAA) as the most concentrated and powerful 'protein supplement' for peri-workout nutrition (the period right before, during and after...
PS Essential Amino Acids powder
blueberry+sucralose
Our brandsPower Supplements best beforeJuly 2027
3000
Available
Jarrow Formulas Glucosamine + Chondroitin + MSM provides efficacious quantities of Glucosamine Sulfate, Chondroitin Sulfate, and MSM combined with Vitamin C and Manganese for optimizing joint health. who can benefit from Glucosamine + Chondroitin + MSM? Anyone with suboptimal joint...
Jarrow Glucosamine+Chondroitin (120/240c)
120 capsules 240 capsules
Our brandsJarrow Formulas best beforeSep 2026
2800 4000 -30%
Available
Power Supplements Glutamine is made in Japan by means of microbiological fermentation according to USP/FCC - cGMP practices. This product solely contains L-glutamine without any added ingredients. Glutamine is one of the most common amino acids and building blocks of our body. Glutamine is...
Our brandsPower Supplements best beforeFeb 2028
2000
Available
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Jarrow Formulas L-Glutamine contains glutamine and is widely used by people with an upset gut lining as L-glutamine helps the intestines absorb fluid and important nutrients. Glutamine is the most abundant amino acid in the human body and is involved in many metabolic processes. Skeletal...
Jarrow Glutamine (120c/100t/1kg)
120 capsules 750mg 1kg powder
Our brandsJarrow Formulas best beforeJuly 2026
1325 2400 -45%
Available
Jarrow Formulas Glutathione Reduced is an ubiquitous antioxidant involved in many cellular functions such as detoxification, amino acid transport, production of coenzymes and recycling of vitamins E and C. By serving as a critical nucleophilic scavenger, glutathione blocks free radical damage...
Our brandsJarrow Formulas best beforeOct 2026
5125 7700 -33%
Available
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AOR_Glycine500g
AOR Glycine is the simplest of all amino acids involved in protein synthesis in the body. Research supports a role for glycine in supporting a wide range of healthy bodily functions, including normal cell growth and development. Glycine is essential for the phase-II detoxification of many...
2550 3200 -20%
Available
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This product replaces Hartformule Pro (V2307) and has an improved composition, new product code and new EAN code. This improved formula contains ubiquinon,olive extract, grape seed extract and vitamin C. Vitals Hart en Vaatformule Pro 60 capsules is a carefully composed formula based on a...
Our brandsVitals best beforeJuly 2027
4000
Available
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What is HMB and how does it work? HMB or beta-hydroxy-beta-methylbutyrate is a natural metabolite in the human body, where it is made from the amino acid L-Leucine. Supplementing with HMB has a positive effect on physical appearance. Combined with strength training, the use of a HMB-supplement...
Our brandsPower Supplements best beforeOct 2028
2500
Available
+
Jarrow Formulas Hyaluronic Acid is clinically documented and bioavailable to improve skin hydration.  Glucosamine a widely used supplement to support the formation of connective tissue and cartilage in joints has a new competitor, Hyaluronic Acid Complex™, hyaluronic acid is the metabolite of...
Our brandsJarrow Formulas best beforeSep 2027
2875 4100 -30%
Available
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Best Body Nutrition's Kick Speed Booster 600g yuzu-grapefruit  for the ultimate kick. the ultimate kick for professional trainers and competitive athletes for optimal support of endurance performance and cognitive performance * Product of the Cologne List ® * 288mg caffeine...
Our brandsBest Body Nutrition best beforeJune 2027
3300
Available
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AOR Liver Support  contains four powerful ingredients known to support the liver: milk thistle extract, N-Acetyl-Cysteine (NAC), Phyllanthus amarus and sulforaphane glucosinolate (SGS) from broccoli extract. These ingredients have collectively been shown to protect the liver from toxins,...
3125 3900 -20%
Available
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Mammut Magnesium Complex 90 v-capsules provides 4 sources of magnesium and helps the body to metabolize carboyhdryates, proteins and fats, supports tissue and connective tissue formation and helps in the development and maintenance of proper muscle function and is an antioxidant for the...
Our brandsMammut Nutrition best beforeJune 2027
1200
Available
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Jarrow Formulas Magnesium Glycinate 90 capsules  is a highly bioavailable form of magnesium that is gentle on the stomach. Magnesium is an essential mineral that supports muscle relaxation, helps reduce occasional stress, and supports healthy sleep and general wellness. Magnesium glycinate...
Our brandsJarrow Formulas best beforeAug 2027
2100 3000 -30%
Available
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Power Supplements Magnesium Lactate 400g Magnesium is beneficial for nerve and muscular tissue metabolism. Magnesium and potassium can be utilized by physically active individuals to support electrolyte levels in the body. Magnesium: essential, too often overlooked Magnesium is an...
Our brandsPower Supplements best beforeSep 2027
2200
Available
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AOR Magnesium Synergy is specially formulated to promote optimal absorption of magnesium into the cell, where it is needed the most, without negative side effects at therapeutic doses. This formulation helps in energy metabolism and tissue and connective tissue formation and provides...
3275 4100 -20%
Available
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Jarrow Formulas Magnesium Taurate 90 capsules  is a highly bioavailable form of magnesium. Magnesium is an essential mineral that supports cardiovascular function and healthy bone density. benefits Magnesium Taurate  supports healthy cardiovascular system promotes a healthy heart...
Our brandsJarrow Formulas best beforeNov 2027
2250 3200 -30%
Available
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Jarrow Formulas OptiMSM 200 capsules contains methylsulfonylmethane, also known as methyl sulfone and dimethylsulfone (DMSO2). MSM is a sulfur-bearing compound that exists naturally in many fruits, vegetables, grains, and animals, including humans. In many tissues, MSM is important in...
Our brandsJarrow Formulas best beforeFeb 2027
3225 4600 -30%
Available
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Jarrow Formulas N-Acetyl Glucosamine is an aminosaccharide, synthesized from glucose and the amino acid L-glutamine, that has been stabilized by complexing it to an acetyl group. N-Acetyl Glucosamine is the body’s precursor to hyaluronic acid, which is part of the synovial fluid that...
Our brandsJarrow Formulas best beforeOct 2027
2450 3500 -30%
Available
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Jarrow Formulas NAC 500mg 60 v-capsules with N-Acetyl L-Cysteine, a sulfur amino compound which plays an all important role in the production of the body dominant and essential antioxidant Glutathione. Optimal Glutathione levels are important for a healthy immune system and the cell defense...
Our brandsJarrow Formulas best beforeJan 2027
1400 2000 -30%
Available
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NOW NAC 600mg  with N-Acetyl L-Cysteine, a sulfur amino compound which plays an all important role in the production of the body dominant and essential antioxidant Glutathione. Optimal Glutathione levels are important for a healthy immune system and the cell defense against viral infections....
NOW NAC 600mg (100/250c)
100 capsules
Our brandsNOW Foods best beforeMay 2027
1325 2400 -45%
Available
Jarrow Formulas NAC Sustain is in a bilayer Quick Release / Sustained Release format of N-Acetyl-L-Cysteine (NAC). N-Acetyl L-Cysteine, a sulfur amino compound which plays an all important role in the production of the body dominant and essential antioxidant Glutathione. Optimal Glutathione...
Our brandsJarrow Formulas best beforeDec 2028
1900 2700 -30%
Available
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Jarrow Formulas Neuro Optimizer 120 capsules contains seven nutrients (citicoline, phosphatidylserine, alpha lipoic acid, acetyl L-carnitine, L-glutamine, taurine and phosphatidylcholine) to build and protect nerve membranes, prevent free radical damage, enhance brain metabolism and provide...
Our brandsJarrow Formulas best beforeSep 2027
4000 5700 -30%
Available
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AOR Ortho Core™ There are nutritional deficiencies, and then there are nutritional imbalances. Nutritional imbalances can result from an imbalanced diet, or from carelessly formulated multivitamins providing ineffective or harmful forms, doses and ratios. Balance and diversity,...
6400 8000 -20%
Available
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AOR Ortho•Mind contains a lot of active ingredients that support cognitive performance while protecting against age-related cognitive decline and reduce mental fatigue in cases of mental stress. Ortho•Mind also contains antioxidants and other factors in the maintenance of good health. These...
6175 7700 -20%
Available
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AOR's Ortho Sleep was formulated to be the most comprehensively powerful natural sleep-aid available to improve overall sleep. Ortho·Sleep is clinically proven to help increase the total sleep time (aspect of sleep quality) in people suffering from sleep restriction or altered sleep schedule...
2875 3600 -20%
Available
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AOR P.E.A.k Pain Relief provides a well rounded approach for helping alleviate chronic pain and inflammation. Palmitoylethanolamide (PEA) has been studied for over 80 years for its potent anti-inflammatory properties. AOR’s formula combines PEA with Univestin™, which has been clinically...
3925 4900 -20%
Available
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VITALS PEA Pure with PEA (palmitoylethanolamide)  is a fatty acid amide that belongs to the group of Nuclear Factor agonists and is made in the human body as a response to pain and inflammation. It is also found in food substances in small amounts, such as eggs, peanuts, soy, organ meat and...
Our brandsVitals best beforeDec 2027
6500
Available
+
Jarrow Formulas S-Acetyl-L-Glutathione is an acetylated version of glutathione. Glutathione is an ubiquitous antioxidant involved in many cellular functions such as detoxification, amino acid transport, production of co-enzymes and recycling of vitamins E and C. By serving as a critical...
Our brandsJarrow Formulas best beforeMarch 2028
3425 4900 -30%
Available
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AOR SuperFocus™  helps promote alertness, wakefulness and endurance while enhancing physical and cognitive performance. The ingredients in SuperFocus ™ help support brain function and relieve mental fatigue (in cases of mental stress). AOR’s SuperFocus ™ provides B vitamins, botanical...
3275 4100 -20%
Available
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Jarrow Formulas Taurine is a sulfur-containing, antioxidant amino acid that protects against free radical damage to cells, and aids in osmoregulation (maintenance of proper concentrations of ions) inside the cell, membrane stabilization, sperm motility, bile acid conjugation, neurotransmission...
Our brandsJarrow Formulas best beforeSep 2026
1250 1800 -31%
Available
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AOR Taurine provides a safe and effective dose of high-quality taurine that reflects current research. Taurine is the second most common amino acid found in the body, and has many different health benefits. Taurine is the most abundant amino acid in the heart, and is important for several...
2875 3600 -20%
Available
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Jarrow Formulas Theanine  is a unique amino acid found almost exclusively in green tea with beneficial effects on brain metabolism. Theanine induces relaxation without causing drowsiness, as measured by increased generation of alpha-waves. Theanine may improve learning ability and sensations of...
Jarrow Theanine (100mg/200mg)
100mg 200mg 100mg gummy
Our brandsJarrow Formulas best beforeSep 2026
1400 2000 -30%
Available
NOW TMG trimethylglycine tablets  contains trimethylglycine (TMG, also known as anhydrous betaine), a highly effective methyl donor extracted from sugar beets. supports healthy homocysteine levels promotes normal methylation processes Methyl donors, such as TMG and folic acid,...
Our brandsNOW Foods best beforeApril 2028
2325 3100 -25%
Available
+
NOW L-Tryptophan 500mg  is an essential amino acid; therefore, it is not synthesized by the body and must be obtained from the diet. L-Tryptophan is critical for the production of serotonin and melatonin, which help to support a positive mood, healthy sleep patterns, and proper immune system...
Our brandsNOW Foods best beforeSep 2028
2925 3900 -25%
Available
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Jarrow Formulas L-Tyrosine 500 is utilized for the synthesis of catecholamine neurotransmitters, such as norepinephrine, epinephrine and dopamine of which the natural production decreases when being on a fat loss diet. In general, tyrosine increases arousal, focus and vitality when the body is...
Our brandsJarrow Formulas best beforeApril 2027
1475 2100 -30%
Available
+
Power Supplements Vega Booster 180 v-capsules with 5 essential 'meaty' micronutrients for vegans Vegetarian food: often more energy, but sometimes less!   There are people who notice that they become more energetic when they switch to a vegan or vegetarian diet. Many explanations are...
Our brandsPower Supplements best beforeJune 2028
2000
Available
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Jarrow Formulas Vision Optimizer 180 capsules  supports visual function and ocular antioxidant status. It contains the carotenoids lutein, zeaxanthin, bilberry,eyebright, grapeseed, alpha lipoic acid, selenium, riboflavin and quercetine. who benefits from Vision Optimizer? Declining vision...
Our brandsJarrow Formulas best beforeOct 2026
5400 7700 -30%
Available
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Mammut VOLTA Pre-Workout Booster pre-workout booster with L-citrulline, L-arginine and beta-alanine supports normal muscle function 1 contributes to the reduction of tiredness and fatigue 2 without caffeine contains the branded ingredients Glutapep ® and Cognivia TM...
Our brandsMammut Nutrition best beforeOct 2026
2800
Available
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