Nature's Bounty L Arginine Review

Nature's Bounty L-Arginine is an amino acid supplement presented in a container of 50 tablets, with each single-tablet serving providing 1,000 mg (1 g) of L-Arginine as Arginine Hydrochloride. L-Arginine is one of 20 amino acids that serve as the building blocks of protein, and it supports the effect of exercise while being involved in various important pathways throughout the body. This product is specifically formulated to support blood flow, vascular function, and heart health as part of your overall wellness routine. For adults, the recommended directions are to take one (1) tablet three times daily, preferably with meals. In addition to the active L-Arginine, the tablets contain vegetable cellulose and less than 2% of natural palm leaf glaze, silica, vegetable magnesium stearate, and vegetable stearic acid. The formula is suitable for vegetarians and is Non-GMO, containing no artificial color, no artificial flavor, no artificial sweetener, no sugar, no starch, no milk, no lactose, no soy, no gluten, no wheat, no yeast, and no fish. Regarding safety and usage warnings, individuals who are pregnant, nursing, taking any medications, or have any medical condition should consult their doctor before use. Users should discontinue use and consult a doctor if any adverse reactions occur, keep the product out of reach of children, store it at room temperature, and not use it if the seal under the cap is broken or missing. According to the product FAQs on the page, it is recommended to follow the directions as stated on the product label, and anyone wishing to take more than what is recommended is advised to consult with a doctor or other healthcare professional. This supplement is carefully manufactured by Nature's Bounty, Inc., located in Bohemia, NY 11716 U.S.A., a company that has offered wellness solutions since 1971 and tests and retests its products every single month to bring potent and efficacious ingredients backed by science.

Product Focus: Sexual Health for MenAlso covers:HeartHormonesRanked among:Nitric oxide supplements
Tier ⓘ
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Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions

Study, Trial or Testing Result Summary

MembersHuman studies

This product provides 1,000 milligrams of L-arginine per serving, or 3,000 milligrams a day, which reaches the 1,500 milligram minimum dose that in clinical trials for male sexual function. In a 2019 review of ten randomized trials involving 540 men with mild to moderate erectile , taking 1,500 to 5,000 milligrams daily erectile function than placebo. …

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Review Totals and Summary

Members255 reviews
255 reviews · Walgreens 79 · Walmart 77 · CVS 74 · Nature's Bounty 5 · Kroger 5 · King Soopers 5 · Foods Co. 5 · Naturesbounty 5

Nature's Bounty L-Arginine tablets generally receive feedback, with of star ratings being 4 or 5 out of 171 total ratings across various stores. Customers frequently its effectiveness and value, though a revolves around the size of the tablets. …

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Biohacker Summary

MembersWhat our biohacker panel says

The panel leans toward arginine, with four of the nine who spoke about it giving a as their latest view and the rest staying . The main reason is blood flow: describe it as a nitric oxide that widens blood vessels, and they use it before workouts, endurance sessions or sex. …

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RAL Summary

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More Details

MembersBody systems · Combine with · Possible side effects

Body systems: Cardiovascular system, Reproductive system, Endocrine system. Combine with and possible side are for members.

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Supplement Facts

L-Arginine 1000 mg (1 g)
Supplement Facts
Serving Size 1 Tablet
Servings Per Container 50
Amount Per Serving% Daily Value
L-Arginine (as Arginine Hydrochloride)1,000 mg (1 g)†
† Daily Value not established.

Other ingredients: Vegetable Cellulose. Contains <2% of: Natural Palm Leaf Glaze, Silica, Vegetable Magnesium Stearate, Vegetable Stearic Acid.

Directions: For adults, take one (1) tablet three times daily, preferably with meals.

Label source: Naturesbounty · Report a label change

Where to Buy

Nature's Bounty · CVS · Kroger
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Graded October 28, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.