

💪 Elevate your muscle game with pure, pro-grade L-Ornithine power!
NOW Foods L-Ornithine Powder is a vegan, unflavored amino acid supplement designed to support protein metabolism and muscular energy by aiding the urea cycle and converting into key amino acids and creatine. GMP A-rated and family-made in the USA, it offers 227 servings of pure, lab-tested powder to optimize recovery, detox, and muscle growth for active adults.





| ASIN | B0013OUQA6 |
| ASIN | B0013OUQA6 |
| Age Range Description | Adult |
| Best Sellers Rank | #213,871 in Health & Household ( See Top 100 in Health & Household ) #212 in L-Arginine Nutritional Supplements |
| Brand Name | NOW Foods |
| Color | White |
| Container Type | Bottle |
| Customer Reviews | 4.6 4.6 out of 5 stars (102) |
| Date First Available | April 28, 2004 |
| Department | Health and Beauty>Health and Wellness |
| Diet Type | Vegan |
| Dosage Form | Powder |
| Flavor | Unflavored |
| Global Trade Identification Number | 00733739002501 |
| Is Discontinued By Manufacturer | No |
| Item Dimensions | 3.15 x 3.15 x 6.25 inches |
| Item Form | Powder |
| Item Weight | 10.48 ounces |
| Item model number | 0250 |
| Manufacturer | NOW Sports - Nutrition and Wellness |
| Manufacturer | NOW Sports - Nutrition and Wellness |
| Manufacturer Part Number | 0250 |
| Material Features | Vegetarian |
| Model Name | NOW Sports Nutrition, L- Ornithine Powder, Protein Metabolism* and Urea Detox*, Amino Acids, 8-Ounce |
| Model Number | 0250 |
| Number of Items | 1 |
| Primary Supplement Type | Creatine |
| Product Benefits | Detoxing, Muscle Growth |
| Product Dimensions | 3.15 x 3.15 x 6.25 inches; 10.48 ounces |
| Special Ingredients | Amino Acid |
| Total Servings Per Container | 227 |
| UPC | 733739002501 |
| Unit Count | 8.0 Ounce |
J**M
a miracle for HGH when 25mg taken at bedtime with 500mg ALCAR
Check google scholar you will see the study on this. It really makes me feel so strong the next day. Careful, too much ornithine boosts HGH too much so reduce dose if you are not getting 8hrs sleep. The ALCAR requires choline to work so get some citicoline.
J**A
Great If You're on a Parasite Protocol
My nutritionist recommended L-Ornithine to reduce my night-time sweating while taking anti-parasite herbs. I couldn't believe how well it worked! Her brand was super expensive, though, and this product by NOW worked just as well. I took just under a Tbsp to stay comfortable at night.
P**H
Unlocking Deep Recovery and Metabolic Efficiency with a Versatile Amino Powerhouse
I have been experimenting with amino acid stacks for years to optimize my post-workout recovery and overall sleep architecture, and adding this L-Ornithine powder to my regimen has been a distinct game-changer. My primary motivation for picking this up was the promise of efficient urea detoxification. As someone who consumes a high-protein diet to support muscle growth, I am acutely aware of the metabolic load that places on the body, specifically the buildup of ammonia which can lead to fatigue ("meat sweats," anyone?). Since incorporating this powder, I have noticed a tangible difference in how "clean" I feel after heavy lifting sessions. It acts effectively as metabolic housekeeping, helping to flush out the byproducts of protein breakdown so that my body can focus on rebuilding tissue rather than just fighting off fatigue. The versatility of the powder format is something I genuinely appreciate over capsules. This tub offers immense value because a little goes a very long way, and I have complete control over the dosage. I typically take about half a teaspoon mixed into water or juice. I must admit, L-Ornithine does not have the most pleasant flavor profile on its own—it is not exactly bitter, but it has a distinct, somewhat savory chemical taste that isn't great solo. However, because this NOW Foods formulation is micronized so well, it dissolves almost instantly. I found that mixing it with a tart cherry juice or a flavored electrolyte drink completely masks the taste, making it a non-issue. The texture is fine and doesn't leave that gritty residue at the bottom of the shaker cup that lesser brands often do. Beyond the detox aspect, the most surprising and enjoyable benefit I have experienced is the impact on my sleep quality. I take this about 30 minutes before bed, often stacked with L-Arginine, and the result is a profound sense of relaxation without the drowsiness associated with melatonin or sedatives. It seems to lower my cortisol levels and quiet the physical restlessness that comes from a hard day of training. I wake up feeling genuinely refreshed and ready to attack the gym again, rather than groggy. This specific tub has lasted me months, and given the purity and lack of fillers—no mystery ingredients, just straight amino acid—it is easily one of the most cost-effective staples in my supplement cabinet for maintaining high-level performance and recovery.
J**8
Bottle is smaller than expected
I am planning to take this product as a pre-work and post-workout supplement mixed in with my drinks. I usually take a protein drink as my post-workout small meal, since I don't usually have time for a sit-down breakfast, since I usually start work really early. Furthermore, I don't usually eat a large meal for breakfast either. However, I do like to start off my day with a great work-out every day. The suggested intake/usage for this product is: Take 1/2 teaspoon, once or twice daily, mixed in your juice or water, on an empty stomach. I supposed this can also be mixed in with your morning coffee for those who like to start off their day with a cup of coffee, perhaps black coffee may be best, since it has no taste/flavors. This is a reputable brand and I have actually purchased their health and nutritional products, and they seem to work well. However, this bottle is much smaller than I would have expected.
J**M
I take a heaping teaspoon about 30 minutes before going ...
I take a heaping teaspoon about 30 minutes before going to bed at night and it really helps me sleep through the night.
J**E
Excellent quality
Great quality, controls my allergies as well as assisting me heal up after my surgery...Dont take to much at one time, ween your intake, otherwise suffer the revenge of your stomach.
A**.
As described.
As described.
A**R
Five Stars
I love the product
ミ**ト
安くて嬉しかったです。 スープや味噌汁に溶かして とってます。 効果あると思います。
岡**瑠
夫がやたらと「疲れた」と口にするようになったので、以前自分がアルギニン&オルニチンを飲んだとき疲れがすっと取れたことを思い出し、オルニチンは肝臓にもよかったはずということで毎日~3日おきくらいに料理に入れるようにしてみました。カプセル1個分くらいですが、それでも効果覿面のようで、最近は「疲れた」と言わなくなりました。Nowからはカプセルのものも出ていて、粉事態は結構独特な味がする(1回ほんの少しコーヒーに入れてみて味の変化に驚きました)ので、水と一緒に飲むのであればカプセルタイプがお勧めです。料理に入れたり味の濃い何かに入れるというのであればこちらの方がコスパはいいのでお勧めです。
岡**船
腎臓にいいと聞いたので購入、まだ一ヶ月程度で効果のほどはわからないので星4つ、継続は力なりで続けたいと思う、量適にはかなり持つのでコスト面では申し分ない。
A**ー
まだ飲み始めて3日目なので(他社製品の残りがあった為)わかりませんが、とっても安いのでリピート予定です。アンチエイジングに寝る前に飲んでます。
お**ぎ
シジミの味がほのかにします。考えてみれば粉のままは安いわけですね。私は飲めますが、気にする人(女房)はダメでした。カプセルとかに入っていると値段もかかり、その分飲みやすいメリットもあるのですね。あらためて気づかされました薬のパッケージ。
Trustpilot
1 week ago
5 days ago