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⚡ Elevate your pump, power your day — pure L-Arginine for unstoppable energy!
NOW Sports L-Arginine Powder is a pharmaceutical-grade, vegan amino acid supplement designed to boost nitric oxide production, supporting enhanced blood flow and muscle metabolism. With GMP A-rated certification and a clean, unflavored formula, it offers flexible dosing for athletes seeking improved endurance and recovery. Packaged in the USA by a trusted family-owned company since 1968, this 1-pound container delivers 76 servings of pure performance fuel.





| ASIN | B0019LWV74 |
| Age Range Description | Adult |
| Allergen Information | Corn-Free, Dairy Free, Egg Free, Non-GMO, Nut Free, Soy Free |
| Best Sellers Rank | #62,048 in Health & Household ( See Top 100 in Health & Household ) #74 in L-Arginine Nutritional Supplements #3,560 in Sales & Deals |
| Brand | NOW Foods |
| Brand Name | NOW Foods |
| Color | Off White |
| Container Type | Bottle |
| Customer Reviews | 4.2 out of 5 stars 1,389 Reviews |
| Diet Type | Vegan |
| Dosage Form | Powder |
| Flavor | Unflavored |
| Global Trade Identification Number | 00733739002105 |
| Item Dimensions | 3.8 x 3.8 x 6.75 inches |
| Item Form | Powder |
| Item Nype Name | Diet & Weight Management |
| Item Weight | 1.2 Pounds |
| Manufacturer | NOW Sports - Nutrition and Wellness |
| Manufacturer Part Number | 0210 |
| Material Features | Vegan |
| Model Name | L-Arginine Powder, Nitric Oxide Precursor, Amino Acids |
| Model Number | 0210 |
| Number of Items | 1 |
| Primary Supplement Type | protein |
| Product Benefits | Metabolism Management |
| Special Ingredients | L-Arginine |
| Specific Uses For Product | Amino Acid |
| Total Servings Per Container | 76 |
| UPC | 733739002105 |
| Unit Count | 16.0 Ounce |
S**N
Best Arginine on sale
If you want the good effects of L Arginine look no further than this NOW brand powder product . First few days i used this i was so turned off by its rotten egg taste and smell that i gave up the powdered form for capsules. But i found the problem with capsules is, even though you may take it with water, by the time the capsule dissolves all the water had been already absorbed. So to facilitate arginine absorption you need to drink water continuously, that's my feeling. NOW Arginine tablets and Twin lab arginine capsules failed for me. The twin lab ones even gave me diarhhea at less than 2G doses. The effects of capsule arginine will kick in only after 2-3 hours, but with this powdered form you can feel a rise in Nitric Oxide, increased blood flow all over and that good feeling in the crotch within 30 minutes and no more stomach upsets. To overpower the putrid smell and taste, i place about 5 g of this arginine powder on my tongue and quickly sip it in with water followed by half a teaspoon of sugar spread over my tongue and mouth (you can even spit out the sugar after a few seconds) or instead of water i use the really sweet minute maid grape/cranberry juice. I take 5G right before i begin my morning exercise on empty stomach and it keeps me pumped for the whole 2 hours. I also take around 5G with each of the two meals i have per day and it seems to work for me, helping me with mood, pump and mr happy. Arginine effects are dosage dependent, so taking 5G gives more effect than a 2G dose. EDIT: Arginine in bigger doses will cause some kind of breathing difficulty, if you are not working out. Initially i found 5G doses to be great as it kept my blood pumping throughout the day. Make sure to do some taxing workout in the immediate period after a dosage to avoid any breathing difficulty. I have stopped taking this stuff as once the initial bleh feeling and taste gets copied into my memory its tough to forget it. In addition to that i have found something even better . Swanson vitamins passion line of herbal supplements especially the safer ones. I have been using Catuaba bark, Avena Sativa, Longjax eurycoma longifolia, Maca and Thyroid support (coleus forskohlii) all of these twice a day and its been good, but with insomnia in the absence of strenuous exercise.
K**H
It is L-Arginine. Buyer Beware!
So I have had this container of Arginine for a few weeks. And was looking forward to using it daily. Until I tasted it. Let me back up and say my previous experience with L-Arginine was a few years back when I worked at GNC they had a great Arginine powder in their Pro Performance line. And it was flavored and easy to take. When I saw this, I looked over the fact that it was unflavored. But I expected it to be 'not flavored'. My gosh was I surprised! So after some research, this is pure alkaline. The taste of this will be unbearable for most people. Trying to drink this straight in water or even in some sort of juice will be impossible for almost everyone. But there is hope! After some research, turns out that Citric Acid will be your saving grace here. I used what I have in the pic. Here is the recipe I used: 10oz water 2 level scoops L-Arginine powder 1 to 2 tablespoons Citric Acid 2 healthy squirts of lemon juice from a plastic lemon Mix Arginine until it is totally dissolved. My water turned back to totally clear. Mix in almost all of the citric acid. Water will turn cloudy at first. After about 30 seconds of mixing, water will turn back to totally clear again. At this point, the Arginine should be neutralized. For good measure, I add in just a dash more citric acid and then the lemon juice and mix a little more. There is almost no discernable taste at all even after adding in the lemon. If you need to have it flavored, you could use a drink mix powder of some sort to help it out. I drank about half of it plain and then mixed in some orange juice. Just kind of tasted like watered-down orange juice, and considering where it came from, i was good with that! I should add that this method will work best at home when you are not looking to slam it back minutes before a workout at the gym. I have not determined the best method for this scenario yet. I was tempted to take off a star in support of 'truth in labeling' with this stuff. There should be some sort of mention how to neutralize the bitterness or that most people can not choke this stuff down.
S**S
Didn't taste THAT bad.....
The first thing I want to comment on is the taste. It has a chemical type taste that makes me think of ammonia. It was far from intolerable and I've tasted far worse. I was honestly expecting the most awful tasting concoction I had ever tasted in my life. Although the taste isn't pleasant, it's definitely tolerable. I never even need a chaser. Now the smell.... That's another story. I try not to breath when I open the container because it smells like sweaty gym socks that have been sitting in a locker for a week. As far as effects, it seems to be a little easier on my digestive system. I think it's because it has less sweetener and other additives like the brand I used to buy from a certain three letter supplement chain. That stuff tasted like Kool Aid and acted like a laxative. So far, this has treated my tummy much better. I stack it with NOW L-Citrulline powder. Works like a charm. Keeps the blood pressure low and has helped increase my vascularity. Definitely a must have sup on my extremely short list.
J**Y
Great Product - but Taste is a Challenge
If you want an easy way to get serious and rapidly-absorbed amounts of this important amino acid into your frame, NOW's product can't be beaten. It's reasonably priced, supposedly pharmeceutical grade, and, in my experience, it works. I've been taking L-arginine for a couple of years and have had good results over time, with over-all improvements in vascularity, energy, recovery, etc., as mentioned elsewhere in these reviews. I also regularly use Optimum Nutrition's creatine monohydrate, BCAAs, and L-Glutamine products, and L-Arginine rounds out the bunch. L-Arginine in capsule form is waste of time and money, in my opinion, because of slow absorption. (I used to open up 5 or 6 caps and dump the contents into water or juice and drink it down - major inconvenience.) A couple of level teaspoons twice a day for me works very well. Both times I take on a empty stomach for better absorption. If I'm going to work out in the early a.m. and need to get jacked, I'll mix it with NO-Explode or with Gaspari's SuperPump 250 (the effect of this one-two combination on your body is intense, believe me). In fact the "buzz" (kind of a prickly feeling) from two teaspoons of L-Arginine alone that creeps up on you in about 20 - 30 minutes is very noticeable. Now for the downside: this product has a HIDEOUS "fishy" taste. Know that no matter what you mix this with, you cannot mask the taste - it's that powerful. (When you mix it with grape or some dark-red colored juice, the liquid turns an evil-looking, metallic green. Seriously.) Mixed with one of the Nitric Oxide supps (see above) the "flavor" is, shall we say, "challenging." I've settled into a routine of mixing it with Minute Maid pomegranate or Welch's grape juice, sometimes with creatine powder if it's in the a.m., and drinking it down without stopping. Then I *IMMEDIATELY* thoroughly brush my teeth because the taste coats your tongue and teeth and gums, and anything you eat or drink thereafter tastes awful. Particularly coffee. And God help you if you try to kiss anyone. That's why I'm giving this product 4 stars instead of 5. Taste issues aside, the benefits of L-Arginine as delivered in this product are, in my opinion, worth the money and the crappy taste. Therefore, I will continue to use this product as part of my overall training regimen. Addendum 09/06/2010 - After I wrote this review, I went back and re-examined how I was taking this supplement. I've stopped mixing it with juice and cut down my intake to once a day. Why? I've done more research on L-Arginine, and it seems glucose can interfere with absorption, and I'm not sure there's any real need for taking more than 2 teaspoons a day. Addendum 12/19/2014 - After a couple of years' hiatus, I'm back to taking this supplement once a day. Still tastes awful, but at my age - 64 (that's me at 63 with my son in my Profile picture) it still does the job.
S**S
Flavor is a Serious Issue
We tried to return it. My husband has high blood pressure and wanted to try recommended high doses of L-Arginine in an effort to move from high prescription meds. This product is one of a few that offer the dosage level needed. After reading reviews the primary concern of other customers seemed to be the taste. He has a diverse palate and figured that “it couldn’t be that bad!” Long story, short…. It’s that bad! Its horrible flavor cannot to be masked with orange juice, protein powders, lemonade and other drink mixes. There are those that say “suck it up, you’ll be OK!” But he’s not ready to commit long-term to this taste, the after taste and the bad breath hours later. He described the flavor as “the rotting bones of dead things!” As an avid outdoorsman and hunter, I guess he’s witnessed this as a smell. In conclusion, if you can literally stomach the taste and smell, this might be an effective product. I recommend the company spend some time on flavor masking experimentation.
S**1
Nine Months and Counting
I just finished my third 1 lb container of NOW L-Arginine with no plans to stop. If you sort the reviews here based on product satisfaction other than the unanimous issue regarding "taste" and the occasional problem with shipment issues etc. this is a solid 100% rated 5 STAR product in terms of effectiveness. I realized this nine months ago when I first ordered NOW L-Arginine and figured it had to be very effective if so many people continued to faithfully use sometime that tasted so bad. I never tried mixing it with anything other than a few ounces of water, swirling and swallowing in one quick comfortable gulp (without inhaling any air) for a nearly tasteless experience other than a slight and almost pleasant after-taste of shrimp. I take two teaspoons every night before bed on an empty stomach. At first I added 1/4 teaspoon of NOW L-Citruline Powder but eventually stopped when I ran out and later read L-Citruline is converted by the body into L-Arginine anyway. After my second pound of L-Arginine I did not notice missing the effects of L-Citruline so I never reordered it again. If anyone besides me has experimented and compared L-Arginine with and without L-Citruline I would like to hear if your experience is any different than mine. Please comment here. I did not notice the L-Citruline made much of a difference in the benefits I was experiencing from L-Arginine. Eventually I started adding a teaspoon of L-Glutatmine Powder from Source Natural and noticed that this addition made the taste of L-Arginine even less of an issue. L-Glutamine is sweet but tasteless. And still later i started adding my nightly teaspoon of ProBiotics Sodium Ascorbate Powder (4500mg C) into the same two ounces of water with L-Arginine and L-Glutamine. I was surprised that adding additional supplement powders to L-Arginine further reduced any problem with taste. If you're sensitive to the taste I suggest you hold your nose when you swallow and don't breath when you rinse and clean you glass before swallowing a second time so as not to lose a bit of that good stuff that might otherwise be left behind in your glass. I originally researched and found that L-Arginine is effective at lowering blood pressure when my doctor noticed my blood pressure was slightly high. NOW L-Arginine has been effective at lowering my blood pressure and I was pleasantly surprised by its Viagra effect. I have never had a prescription to Viagra but have tried it a few times over the years and noticed the negative side effects as well as a benefit. But L-Arginine daily is more effective than Viagra because you can take it everyday of your life without the negative side effects and I think this makes it superior to any of the drugs intended for that purpose. The daily dosage cost of NOW L-Arginine is less than 25 cents a day; what a great bargain when you consider the expense and negative side effects of drugs to lower blood pressure and enhance sexual performance.
H**O
This stuff works!
L-Arginine is a great supplement and has multiple uses whether your looking for a pre-workout supplement or something to help with ED since this product is great for opening up the blood vessels. To get the full benefits of Arginine you should take between 4-8 grams daily which can be expensive if you are taking the capsules as they range from 500mg to 1g each pill, meaning you would have to take between 8-16 pills a day depending on the dosage. That's why buying Arginine bulk powder is much better than buying the capsules. The only issue with the powder is it tastes horribly bitter. I can hardly stand the taste of the stuff, and I can usually tolerate the taste of supplements others seem to have problems with. My solution was to buy empty capsules and a do-it-yourself capsule filler and made my own capsules. I can make a couple hundred capsules in less than 20 minutes (including clean-up) and I never have to taste the Arginine again. So I highly recommend this product, but I would definitely buy a capsule filler with it.
P**E
Tastes n smells like pool chlorine
Taste is from the other side of hell and smells like pool chlorine Do not stack this into your pre workout drink. Just take it separately. You will thank me later So w the dose, I Tried mixing just a few tablespoons of warm water w a teaspoon of lemon juice n a pinch of flavored pre workout powder. I'm downing it like a shot and I do NOT breathe through my nose when I take it. Does it work? I'm only 1 week in so can't tell. Why am I doing this and still taking it even though the taste is horrible? For the same reason we all do, we want results and arginine pills are huge and unless you crunch them in your mouth, they are a pain in the ass to swallow. But this company should really add something to cut the strong chemical smell n taste.
S**.
how to neutralize its bad taste
just mix with one big lemon and half glass of water. it taste will totally go away.
雑**級
飲みにくさ
飲みにくさはジュースとクエン酸混ぜておいた物に入れると軽減できます 効果はありすぎなので週2位でシトルリンと一緒に飲んでます
A**ー
すぐに届いて、一回の量も増え大満足。臭いはやはりあれ。
【二回目購入】やはり予定日よりも1日早く届きました。間に合えば海外に持っていくつもりでしたので大満足です。 今回はボトルがそのままサイズぴったりの段ボールに入れられていたので、衝撃のせいかボトルに凹んだような後がいくつもありました。使用には全く差し支えはありませんが、出来ればエアーパッキンなど使っていただきたいと思います。 製品の質に関しては本当に満足していて、水泳の疲れが残りません。年齢のわりに筋肉もつきやすくなり、実年齢よりも15歳ほど若く見られます。 そして、精液の量が増えました(笑)元々量が少ない方ですが、毎日だしてもある程度の量が出るようになりました。 摂取量が多いからか、摂取した翌日は体臭が強くなるように思います。周囲の人が気付くほどではありません(友人に確認済み)が、気になる人は摂取量を減らす、頻度を減らすなど工夫した方が良さそうです。 【一回目購入】注文してからすぐに届きました。予定では12月6日~10日でしたが、12月4日に届きました。 紙の中蓋がしてある状態でも、あの臭いがしますね…(笑)他の人のレビューで覚悟していましたが、驚くほど、まるっきりあれの臭いです。 商品の写真では一回の量は4.6gでしたが、届いたものは6gとなっています。
ド**ソ
わかっていたけどニオイも味もやばい
筋トレ時のパンプアップを促進させる目的で購入しました。そして、この商品の特性はあらかじめ知っていたけどやはりニオイも味もなかなかにしんどいです。 アルギニンパウダーを水に溶かしただけのストレートな状態だと風味が受け付けなくて飲めませんが、パープルラースなどの人工甘味料が入っているものと混ぜればほとんど気にならずに飲めました。
G**R
Horrible taste. But good product
The product is great for the gym. But the taste is so bad that it's very hard to consume. You can forse yourself to drink it. But I think I product should be enjoyable to drink not to force yourself to take it.
Trustpilot
3 days ago
5 days ago