L-Arginine 1000mg

90 tablets, 1-4 daily, 1+ month supply
(110 Read Reviews)
£12.20
  • Pure, nutrition grade L-Arginine
  • Highly absorbable form of this amino acid
  • Particularly popular with men
  • For active individuals
  • Perfect partner to fish oil for heart health support
  • Pure, nutrition grade L-Arginine
  • Highly absorbable form of this amino acid
  • Particularly popular with men
  • For active individuals
  • Perfect partner to fish oil for heart health support
Product ID: 749
quantity
Free Delivery FREE DELIVERY on UK orders over £20.. Read more
  • Product Information

  • L-Arginine is one of 21 amino acids found naturally in our bodies. Amino acids are the building blocks that form proteins as well as being important sources of energy for carbohydrates and fats.

    Aside from being a structural component of many proteins, arginine performs several functions within the body, making it important to our overall health and wellbeing. It helps in the production of nitric oxide (NO), a substance known to be an important determinant of cardiovascular performance (through its role in blood vessels and blood flow). It’s also a building block for collagen synthesis.

    Derived from the protein fraction of peas (one of the richest natural sources), our high-strength formula contains pure, nutrition grade L-Arginine, providing 1000mg per tablet (many equivalent Brands provide just 500-700mg). We've also supplied ours in a body-ready L-form of this amino acid, so it is ready for absorption and doesn’t need to be broken down by digestive enzymes.

    Arginine is a popular product, particularly with men. Women over 50 looking to support heart health, and active individuals may also choose to supplement with arginine. Being naturally found in red meat, poultry and dairy makes this a useful amino acid for anyone following a plant-based diet. (Interestingly, the average daily intake of L-arginine from foods is reported to be 4–6 grams.

    We’ve chosen to encapsulate our high-strength L-Arginine in easy-to-swallow tablets instead of capsules, as this casing can deliver highly concentrated amounts of quality amino acid.

    As with all our products, we manufacture and package our formula in UK factories working to Good Manufacturing Practice (GMP) to ensure our strict quality standards are always met.

    Our Arginine tablets are suitable for both vegetarians and vegans.

    Unsure if this formula is for you? Don’t worry. Our team of expert Nutrition Advisors are here to help.
  • Daily Intake
  • TAdults take 1 to 4 tablets daily. Do not exceed recommended daily intake. Consult your healthcare professional prior to taking should you have concerns. Use only water or fruit juice to swallow tablets. Not milk or any other protein drink. An amino acid is best taken half an hour before any meal or at bedtime.
    Food supplements should not be a substitute for a varied diet.
  • Formula
  • Typically per tablet
    L-Arginine HCl1000mg
  • Ingredients
  • L-Arginine Hydrochloride, Bulking Agents (Cellulose, Hydroxypropyl Cellulose & Calcium Carbonate), Anti-caking Agents (Silicon Dioxide, Stearic Acid & Magnesium Stearate), Glazing Agents (Hydroxypropyl Methylcellulose & Glycerol).
  • Suitable For
  • This product is suitable for all adults. This product is suitable for vegetarians and vegans.
  • Cautions/Allergies
  • This product is free from wheat, yeast, dairy, soya, nuts and shellfish.
    This product is free from gluten containing ingredients.
    Do not take if pregnant or breast feeding.
  • Reviews (110)
  • By Stanislaw Hoppe , 17 Oct 2025
    Verified Purchase
    My last order was out of stock, even though I paid for it. I don''t recommend purchasing this product from Nature''s Best. No best.
    Recommend to a friend: No
    Thank you for taking the time to leave a review. I am sorry to hear you did not receive your product within the expected time frame. This was out of stock for a short period, but has now been dispatched to you. Our customer service team have been in contact with you, so hopefully you have now received your pot.
    Nature's Best Nutrition Advice
    By Anonymous , 10 Aug 2025
    Verified Purchase
    Recommend to a friend: Yes
    " It appears to work"
    By Anonymous , 31 May 2025
    Verified Purchase
    To improve blood circulation.
    Recommend to a friend: Yes
    By Anonymous , 22 Apr 2025
    Verified Purchase
    Recommend to a friend: Yes
    "Works as it should"
    By Anonymous , 10 Sep 2024
    Verified Purchase
    I use this to increase my circulation and lower my blood pressure. In a matter of a few days I have seen a marked improvement in both.
    Recommend to a friend: Yes
    Thank you for taking the time to leave a review.

    As supplements can take some time to build up and have an effect in the body, we do suggest that this is used daily for three months before reassessing your symptoms. If you have any health condition, I would recommend speaking to your doctor about any supplements you are taking.
    Nature's Best Nutrition Advice
  • Frequently Asked Questions (1)
  • Q - "How Much L-Arginine Should I Take?"
    A - Take 1 to 4 tablets daily. Use only water or fruit juice to swallow capsules – not milk or any other protein drink. An amino acid is best taken half an hour before any meal or at bedtime. Do not exceed recommended daily dose. Food supplements should not be a substitute for a varied diet.