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L-Arginine HCL Powder

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In stock

Price From: FROM $11.96

Ships tomorrow if ordered in the next 13 hours and 46 minutes!

L-Arginine HCL Powder


  • Immune health
  • Athletic endurance
  • Easily digested
  • Taste

  • Mixability

L-Arginine is an amino acid that promotes healthy skin, joints, and heart function, and may improve athletic endurance. The hydrochloric acid (HCL) in this supplements promotes easy digestion.


Serving Size & Timing

The suggested serving size for this supplement is 750mg to be taken one to two times per day without meals. However, individual needs may vary. Determine best serving size by starting with lower levels and gradually increasing as desired. One can also discuss supplementation with a physician.

Nutritional Information

Supplement Facts

Serving size: 1500 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
L-Arginine (as L-Arginine HCL) 1245mg *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 1500mg (rounded 1/2 tsp) daily on an empty stomach, or as directed by physician.

US Standard Measuring Spoons
Spoon Size(level) milligrams
1/16 teaspoon 237
1/8 teaspoon 475
1/4 teaspoon 951



This supplement contains no fillers of any kind.


As long as suggested serving sizes are adhered to, no adverse side effects should be experienced. However, taking too much arginine may cause minor side effects such as upset stomach due to an accumulation of extra stomach acid. Arginine may also alter levels of potassium, which can be particularly dangerous for those with liver issues. Those who are taking ACE inhibitors and those that are taking diuretics or have kidney problems should not use arginine unless required to do so by a doctor. Women who are pregnant or nursing should not take this supplement. Those that have recently had a heart attack, those who are taking MAOI’s, Viagra or blood pressure medications should not take arginine either.


This supplement is easily dissolved into water at higher temperatures at a slightly faster rate than the standard L-arginine base. It also has a slightly more palatable taste, but still might be described as bitter.

California residents: Click here for Proposition 65 warning.

Customer Reviews

Great add to pre-workout
I could feel a great pump. Works great day absorption.*

On 5/7/2019 jacob said...

love this l-arginine hcl
I purchased Proline, L-Arginine HCL, L-Glutamine to add to my Bulk supplements Vit C, NAC and Lysine to do a HGH stack, like Serovital at a fraction of the price. I am very happy with the supplements and the great prices. *

On 4/9/2019 BRIAN said...

Best quality for cheap
This product is everything you need for a good pump at a cheap price*

On 3/12/2019 T-Wil said...

Good Product Good price
Good product. I will continue to purchase this product or L arginine base.*

On 2/23/2019 Allen said...

The best!
Cheap pure and clean I would highly recommend!*

On 12/1/2018 Nolan said...

Since I received the L-Arginine HCL powder, I have noticed an increase in energy and more clarity and as a result, having just turned 58, this has also given me a boost in confidence. The powder easily mixes in with coffee, or a fruit drink. I plan to keep this a part of my daily intake of supplements to function more effectively through the day.

Thank you!*

On 10/19/2018 Joe said...

produt & delivery
great product fast delivery will continue to buy *

On 8/9/2018 oohay said...

Power and strength
My wife and I have been using this product for a few months now. It has definitely helped us in our work outs. We are both over 50 and are in the gym at least an hour several days per week, and the difference we feel with this is pretty strong!*

On 7/27/2018 Lee said...

L arginine HCL
I use this supplement, along with glutamine and alanine. The arginine particularly helps my workouts. I feel like an animal and have greater endurance and power. I also feel that the combination of the 3 aminos helps digestion and is a big mood booster. Anyone who lives an intense life, is getting a little older, or wants a boost at the gym should give this a try. *

On 3/24/2018 Thomas said...

seems to affect BP
Taking about 3-4 grams a day. Blood pressure is lower without any other change in diet. *

On 10/27/2017 David said...

L arginine
This company def takes care of its customers and the shipping is very fast. I'll be getting all my aminos from here.*

On 9/30/2017 Steven said...

L-Arginine HCL Powder
I'm not sure of the results, but I'll keep using for blood pressure maintenance. *

On 8/20/2017 Quinton said...

L Arginine
I'm stacking L Arginine with L Citiuline, and I can feel it during my work outs *

On 6/30/2017 JOHN said...

Great Product
I have been using ALCAR for a little over 2 years. I first ordered it from another online distributor but learned that fillers were used to cut the product. Bulk Supplement's is pure and it is effective for the peripheral nerve pain that I suffer from. I highly recommend this product.*

On 6/15/2017 Bob said...

L arginine
My favorite supplement, Great quality, I am never without.*

On 6/10/2017 Roger said...

L-Arginine Base
One of many products I use for pre-workout. I am pleased how this dissolves so easy in liquid. Everything about this is AWESOME!! I am pleased with the quality of this product.. Will continue to buy all my supplements from BULK SUPPLEMENTS*

On 5/16/2017 Daniel said...

Blood pressure medication
This is a great product and at an economical price. I use this for male supplement, muscle strength, and as a natural no side effects blood pressure pill. Wonderful Stuff*

On 5/9/2017 Floyd said...

Great Stuff
I take a lot of supplements. I did some calculations comparing the product from the vitamin store vs bulk. I was amazed at the cost difference to capsule your own. Buying from Bulk Supplements the cost was just 10% of the already capsuled vitamins from online vitamin stores.

In addition the Bulk supplements product is pure, no fillers, not always true with the other store products. putting the bulk product in pill form is extremely easy*

On 5/4/2017 Scott said...

great poduct
I would like my free product to be l-arginine HCL powder my review was on ascorbic acid*

On 5/2/2017 randy said...

Could feel the pump after the first workout! I also use pine bark. Both taste equally horrible, but choke it down, and get after it!*

On 4/12/2017 Timothy said...

L Arginine
Review of L Arginine:
I feel that my circulation has improved greatly since using this product.
My feet are no longer cold to the touch and breathing is easier.
I have Afib and am hoping this product may help reduce incidents of high heart rate.
At least it will dilate blood vessels.*

On 4/6/2017 Robert Eckardt said...

I can definitely notice an increase in circulation within 30 minutes or so. I use this as a pre-workout supplement and feel more energized while training. Flavor is awful, but I squeeze lemon juice in it and that neutralizes the flavor. Will definitely order again!*

On 4/5/2017 Justin said...

L-Arganine HCL
I love this product! I put it in my preworkout! Great packaging and great products! *

On 3/28/2017 Denise said...

A must have for endurance athletes!
I don't know if I would be able to withstand grueling training for IronMan and Marathon races without this stuff! This in conjunction with the other supps I am taking (beta-alanine, glutamine and beta-alanine) help me recover too.*

On 3/6/2017 Tina said...

Shipping issue
So on my recent order there was a shipping issue. I was sent the wrong item. I am happy to say that it was quickly taken care of, and the process was painless. So I'm leaving 5 stars, the product is always of high quality, and even after this mix up I'm happy!*

On 3/4/2017 Jonathon said...

Methionine powder
Mixes easily and well with water. Taste is nothing to write home about, but then it is a pure amino acid. Good product, good packaging. *

On 3/1/2017 Art said...

L Arginine HCL
Thank you for your prompt shipment. Ordered January 26 and it arrived January 30 everything i ordered was sent correctly.About product i have never ordered this before so i took a capsule i had from a health food store and emptied onto a paper towel to compare they were almost identical in texture,color and taste.I assume it is what it says.As for does it work i just started taking it i have read it could take a month to notice a difference.*

On 2/13/2017 Carl said...

L-Arganine HCL
Essential to my pre-workout formula. Pure and functional–nothing more, which is exactly what I want.*

On 1/23/2017 Adam said...

I have been using this for 4 days. My BP seems to be coming down a point or two in just a short time. No side effects to the powder. I am very happy to be giving this a real try, in hopes to be able to come off all meds very soon.*

On 1/18/2017 Ricky said...

I loved this product
I completely recommend ordering this product it is a high quality and affordable product. I was happy that the shipping was so quick as well.*

On 1/10/2017 Ezra said...

Great Product, amazing company
I am more than happy to receive my product so quickly for such a great price, I have noticed a different and better feeling while training especially fasted. I totally recommend this product!*

On 1/10/2017 Ezra said...

L-Arginine HCL
The most cost effective and highest quality I have found... period! Thanks!*

On 12/22/2016 Mike said...

Great Product! I mix it with my C4 pre workout mix and I have great blood flow for the next hr. I can tell once I added it to my pre workout how much more pump I had.

Thanks you guys!*

On 12/8/2016 Eric Adams said...

Great Product and Price!
I only use 1/2 to get the same results! Thanks!*

On 11/26/2016 Mike said...

L-Arginine HCL
This supplement delivers. Using to up NO2. Satisfied with purchase.*

On 11/21/2016 Rick said...

Works Great
I've been very happy with the results from this powder. It has increased my blood flow, and my erections are more frequent and stronger. Great stuff!*

On 11/14/2016 Robert said...

L-Arginine HCL
I truly believe in this amino acid. I take it with a combination of other amino acids. It boosts energy, supports healthy blood pressure and circulation, and helps aid in muscle development. Great product!*

On 11/10/2016 Joshua said...

Feel the kick
I definitely feel a little energy surge about midway through my endurance workout since I started taking L-Arginine HCL. My veins are getting bigger also. I,ve taken pills from various box store manufactures, but now I use powder from Bulk supplement and I get way better results. Yes, I would recommend this to a friend.*

On 9/27/2016 L-Arginine HCL said...

excellent product
Very pure, effective. I will buy this again!*

On 9/21/2016 Yvonne said...

L-Arginine HCL
Ingredient number one in my pre workout recipe. Amazing energy, increased blood flow and bigger pumps guaranteed. Superior quality and price, won't find a better product out there.*

On 9/6/2016 Grant said...

L-Arginine HCL
Ingredient number one in my pre workout recipe. Amazing energy and bigger pumps are guaranteed. Superior quality and price. You won't find a better product anywhere.*

On 9/6/2016 Grant said...

L Arginine
This is the purest L-Arginine I have ever taken. Amazing blood flow and increased oxygenation during sports. *

On 8/17/2016 Scott said...

so happy
so happy i found you ... i use a lot of supplements to help with my (mg) MYASTHENIA GRAVIS and find yours to be of high quality and with great prices. i will buy again and will recommend to others*

On 7/18/2016 loren said...

Beta Alanine
Definite increase in energy pre workout. I will continue to order this, works very well in combo with my other Bulk Supplements. Great company, great products!

On 7/6/2016 David said...

L-Arginine HCl
As we age and the T level drops, muscle density is difficult to maintain. I use this product for that reason. Putting 1 tsp or one half tablespoon in a glass of protein drink makes a noticeable improvement in recovery after exercise. Arginine promotes muscle healing too. Good stuff.*

On 6/13/2016 Lee from Florida said...

Super Pumps
5 grams split between morning/afternoon and I can feel the difference already. Highly recommended! Dissolves easily. *

On 6/13/2016 Marie said...

This product, (2500mg), used with L-Citruline powder (500mg); and together enhancing the body's ability to produce higher level of nitric oxide. It really works great*

On 6/13/2016 Robert said...

Pure Product.
Dissolves super fast and turns clear. Great product!*

On 6/2/2016 Marlan said...

I was pleasantly surprised when my order arrived in hygienically sealed pouch and seemingly pure white powder which dissolved quickly in tap water, mixed with other supplements without clumping. *

On 4/19/2016 Carlos said...

L-Arginine HC
L-Arginine HCL Powder is the perfect and final addition to my Vascolator /NO stack. With the addition of HCL my muscle bumps are sustained longer, harder and faster; my workouts are energized. Bulk supplements is my primary source for pure ingredients.*

On 4/4/2016 Derrick said...

L-Arginine HCL
Fast delivery, reasonable price, high quality product. I'm using the Ornithine HCL powder in a pre-workout mix and a pre-sleep mix, as a general GH-promoting supplement. So far so good - no problems, and optimistic about what the long-term results will be. *

On 3/30/2016 Bradley said...

Good Product To Improve Circulation
I'm very satisfied your arginine powder. I've got circulation problems which this helps greatly with. Very economical too! Thank you, BulkSupplements.*

On 1/30/2016 Kenton said...

Staple in my pre-workout
For about 8 months now I have done independent assembly of a pre-workout supplement; I have found Argentine HCL being a necessity in my "workout supplement." It provides a faster warm up time, improved blood circulation, and in turn, increased heart rate and respiratory functions. Only speculative point is increased sweating, but for someone who is into the gym as much as I am, sweating is not considered a bad thing.*

On 1/27/2016 Daniel said...

Good Product
Been taking it for about 2 weeks now. I do not know if the effects are working yet. Will continue to take and order again. *

On 1/26/2016 Noel said...

First Time User
I have been taking it for 2 days now hope to see a big improvement in circulation. very help great Customer Service.

On 1/18/2016 Noel said...

Quality Product
Mixes well and quality powder, took me about 6 months to get through it and it keep well. Happy with this company's products and service, better than most. *

On 12/7/2015 Tanya said...

Product Review
Recently purchased L-Arginine along with Pine Bark Extract. Hope this combo helps with ED problem. Also purchased EDTA Calcium DiSodium to help with blood pressure. Products all appear to be of good quality and as ordered. I sincerely hope they help as advertised.*

On 11/25/2015 James said...

Good supplement
Starting taking a few days ago to improve circulation. Tastes a bit rancid mixed with water, but isn't horrible. 5g in the morning and I can feel a slight difference so far. would reorder*

On 10/18/2015 Caleb said...

I take this at night before I sleep because it releases growth hormone and also right before my workout which is ideal for a massive pump and increase in vascularity. Great product that gets the job done! Highly recommended! *

On 10/13/2015 Athanasios said...

L-Arginine HCL
Great product, Dissolves easily. I take 5 grams a day and have been using it for 3 days to help promote circulation. I can say I feel it working. Will reorder.*

On 9/30/2015 Michael said...

all around good supplements
Works well to keep my muscles full. Feels lil I've been hooked up to a air machine! Great for sperm increase too.*

On 9/6/2015 Rodney said...

Great quality
Fast delivery, high quality powder. Great product if you're looking to boost your workout.*

On 8/12/2015 Joseph said...

great for recovery
Arginine is great for recovering from workouts. Great price and service.*

On 7/25/2015 Jon said...

L-arginine HCL
This product mix with a few other supplements will have quick effects within a first hour. Good product, but I recommend double sealing the product after breaking the original seal.*

On 7/13/2015 alex said...

L-arginine HCL
This product mix with a few other supplements will have quick effects within a first hour. Good product, but I recommend double sealing the product after breaking the original seal.*

On 7/13/2015 alex said...

L-Arginine HCL
I placed my order through ebay and I was really happy with the super fast shipping time. I've been using this supplement for a week now, and though I haven't noticed any extreme changes, I do seem to have extra energy in the gym and I have been sleeping a little better (which could be coincidence-to early to really tell) The taste takes a little getting used to, but I've had worse. Over all, I am very pleased with this purchase and this company in general. *

On 6/24/2015 Robert said...

L-Arginine HCL
Great pricing. Quality product. Fast delivery.*

On 6/16/2015 Shawn said...

Handy to use and effective
I used to buy this supplement at the local drugstore or online in capsule form. When I realized that I could get it from BulkSupplments in pure powder form and add it to liquid drinks, while at the same time make my own determination of dosage, I thought I would try this. It has worked out very well. The good news about BulkSupplements is that their products are wide-ranging, reasonably priced, shipped promptly and customer service is always available for assistance. I would recommend both this product and BulkSupplements to my friends an colleagues. Thanks!*

On 6/15/2015 Neal said...

I take 30 minutes prior to workout
Great energy booster
No matter how fatigued, once taken my energy level soars!
I also get a great pump! *

On 6/13/2015 Athanasios said...

L Arginine HCL
Came on time. Great price. Got better workout/more energy upon first use.*

On 6/4/2015 John said...

L-Arginine HCL
I go to the gym everyday. I mix L-Arginine, Citrulline, Caffeine, and creatine powder all purchased here to make my own pre-workout. Much cost effective then buying overpriced supplements from GNC. Products were packaged well and shipped fast. Will buy again! *

On 6/2/2015 Rick said...

Great quality
Completely satisfied! Great pumps , great lifts. My circulation is already improving in just the last couple days I have use it. I can second the orange juice mixing. No taste! *

On 5/31/2015 Darry said...

L Arginine HCL
Product came on time. Packaging is excellent as well as the quality. I started feeling the results of the product immediately after the first use. I will continue to buy from bulk supplement.


On 5/28/2015 Ronald said...

The l-arginine powder gave me more intense workouts and better pumps in the gym the first time I used it and it just gets better. Really feel like I'm benefiting from this product*

On 5/10/2015 Chase said...

L -arginine HCL
Was advised by my professional sports Dr to add L -arginine to my supplementation not only for bloodvessel assistance but actually my wife and i are trying to conceive our first child and L arginine is used to increase sperm mobility and quality . And since i know bulk supplements are excellent quality i purchased and been adding to my daily vitamin intake cause happy wife means happy life..:)*

On 5/8/2015 Ironbuilt1 said...

L-Arginine = Vascularity
I've been dosing at 10g a day. 5g preworkout ,5g postworkout and I've noticed considerable vascularity, due in part to the increased nitric oxide levels I presume. Pumps are slightly better in the gym. I'd recommend this product to anyone who's looking to squeeze out some vascularity. My veins and blood vessels come out more on a daily basis when I'm just relaxed. Great product. *

On 4/22/2015 Alexander said...

Added this to my pre stack with caf, beta alanine, creatine, and citruline malate.... love the product*

On 4/16/2015 Mark said...

I play basketball everyday. If I don't take this supplement I can tell the difference. The stamina that I recieve once I take my arginine is incredible. What I like the most is that I can regulate how much I take. Most off the shelf products are one size fits all. I will definitely be ordering this product on the regular.*

On 4/15/2015 Kris said...

L-Arginine powder the real thing!
I noticed the first time taking this product the energy and rcovery i had, The soreness i used to get i dont get any more with this product, its a must have for working out*

On 4/15/2015 eric said...

much needed suppliment
This is one of those supplements that I don't like to be without but my budget doesn't allow me to keep at it. Works well with citrulline also. *

On 4/14/2015 Archer said...

L-Arginine HCL Powder - Excellent!!
I take this supplement pre-workout to help increase blood flow to the muscles. It also helps improve my muscle pumps and vascularity. No upset stomach too. Love, and it is a great company to buy from with quick delivery and excellent customer service. Highly recommended this company and product.

On 3/31/2015 Brian said...

great for pump!
I have been taking this product daily for about a week and a half now and it gives me huge pumps. I have received numerous compliments about how lean I look but I have actually gained about 5 pounds ( I'm in a bulk phase). It also makes me look very vascular. *

On 10/8/2014 Dave B said...

Great Pump
I have been using this type of L-Arginine for about a week now and the pumps I get are GREAT!! With in 30 minutes I can feel my muscles swell and once I start working out the veins start coming out. I have used other types of Arginine but this one has seemed to give me the best pumps and longerest lasting. I know everyone reacts different...but for me I have found my Arginine. *

On 7/1/2014 Shane said...

GH support
This in combination with ornithine is a potent combo. Love the stuff! Works well. *

On 5/12/2014 zac said...

L Arginine HCl
Pure product, fast delivery. Essential for relaxing arteries and ensuring proper blood flow.. I will continue to order from bulk supplements. thanks*

On 4/27/2014 stephanie said...

L-Arginine HCL
Pure product, dissolves easily, I put it in orange juice and could not tell the difference in taste.*

On 4/7/2014 Charles said...

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