Page 1 - Reviews - NOW Foods, L-Ornithine, 500 mg, 120 Veg Capsules - iHerb
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Customer Ratings & Reviews

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4.8
Based on 4,309 ratings
3,577
518
169
25
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English (UK)
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iHerb Customer
Posted on 18/11/2025
Australia
56
0
1
2
Good Product
Verified Purchase
I really like this product as it has quality ingredients at an affordable price point. I won't continue taking these as I feel they haven't made a noticeable change to my health and well-being.
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GulzhanUmmuMariyam
Gold
Posted on 25/11/2025
Kazakhstan
1,649
21
2
154
Verified Purchase
Amino acid for physical performance. Healthy protein metabolism. Non-GMO. Dietary supplement. Vegetarian and vegan. Kosher. Amino acids. Family-owned since 1968. GMP registered. Ornithine is a nonessential amino acid that plays a key role in the urea cycle, working with arginine and citrulline to rid the body of ammonia, a byproduct of protein metabolism. Because ornithine is converted to arginine, it helps maintain healthy arginine levels in the body. Additionally, ornithine can be converted into other amino acids, such as citrulline, proline, and glutamate, as well as creatine, which is an important source of muscle energy.
Auto-translated from Russian
DOTORI
Posted on 25/09/2025
South Korea
35
0
0
6
Verified Purchase
I've been working out hard, so I've been taking a combination of arginine, ornithine, carnitine, taurine, and citrulline. It definitely feels less tiring to take some and exercise. However, citrulline is hard to find in Korea and hard to order directly, so I'm debating whether to continue this combination.
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lamia
Gold
Posted on 25/07/2025
United States
2,729
20
5
137
Verified Purchase
Ornithine is a non-essential amino acid that plays a key role in the urea cycle, working with arginine and citrulline to rid the body of ammonia, a byproduct of protein metabolism. Because ornithine is converted to arginine, it helps maintain healthy arginine levels in the body. Ornithine can also be converted into other amino acids, such as citrulline, proline, and glutamate, as well as creatine, which is an important source of muscle energy.
Auto-translated from Russian
Oksana
Silver
Posted on 26/08/2025
Ukraine
162
0
2
99
An effective remedy!
Verified Purchase
I take this ornithine as prescribed by a doctor. I had a problem with poor protein digestion and ammonia excretion. Ornithine directly activates the urea cycle (ornithine is one of its main participants). It powerfully reduces the level of ammonia in the blood. It helped me.
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iHerbCustomer
Posted on 21/08/2025
Armenia
13
0
0
0
Verified Purchase
Everything is great, as in the description. The quality is excellent. The packaging is reliable. The size corresponds. The benefits will be seen in the future. The composition is what is needed. The taste is not felt.
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iHerbCustomer
Gold
Posted on 14/12/2025
Ukraine
724
197
7
1,391
Super 😍
Verified Purchase
My doctor prescribed it to me to remove ammonia from the nervous system. They changed the doses from 3 to 5 capsules. When I increased the dose, I felt even better. At first I drank it only in the evening, then I tried to divide it evenly throughout the day. The ingredients are the best, the quality is great, I recommend it😍
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Doggy
Silver
Posted on 22/04/2026
Japan
162
0
0
146
The feeling of refreshment the next morning is noticeably different.
Verified Purchase
For someone like me who frequently attends business dinners and drinks in the evenings, this supplement is essential for combating the sluggish feeling the next morning. When I take it before bed, I wake up feeling incredibly refreshed the next morning, and I can get a smooth start to work. The vegetable capsules are easy to swallow, and the 120 capsules offer great value for money. I wholeheartedly recommend this product to business people who want to take care of their liver while performing at their best from the morning, as well as to those who enjoy alcoholic beverages.
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Irina
Posted on 2/03/2026
Kazakhstan
55
0
0
3
Great
Verified Purchase
I really love this product. The ingredients are all natural. The taste is sour. It’s very convenient to use because they are like marmalade. The size is medium. The packaging is convenient. My children take them and they have practically stopped getting sick. The quality is just super. I’m happy with them. I take them on a regular basis. The dosage is one piece a day. Improvement occurs with cumulative use.
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telo-vbalance
Silver
Posted on 29/08/2025
Ukraine
147
0
21
624
Ammonia reduction
Verified Purchase
I took it with citrulline to remove ammonia, because with low protein, urea is quite high. We need to help the urea cycle a little.
Auto-translated from Ukrainian