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NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 1,000 mg, Double Strength, Amino Acid, 100 Tablets

4.6 out of 5 stars 1,290 ratings
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Purchase options and add-ons

Brand NOW
Flavour Unflavored
Primary supplement type L-Lysine
Unit count 100 Count
Item form Tablet
Item weight 0.1 Kilograms
Item dimensions L x W x H 8 x 4 x 6 Centimetres
Diet type Gluten Free, Kosher
Product benefits Energy,Metabolism
Age range (description) Adult

About this item

  • DOUBLE STRENGTH VEGAN TABLETS/ESSENTIAL AMINO ACID: Lysine is an essential amino acid that must be obtained through diet or supplementation
  • SUPPORTS COLLAGEN SYNTHESIS*: Necessary for the production of all proteins in the body and is required for the maintenance of the structural proteins collagen and elastin*
  • CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Vegan/Vegetarian, Kosher
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • FAMILY OWNED & OPERATED: Proudly packaged in Canada by a family owned and operated company.
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Important information

Safety Information

Consult a health care practitioner prior to use if you are following a low protein diet, or are pregnant or breastfeeding. Consult a health care practitioner for use beyond 6 months.

Ingredients

Each tablet contains: L-Lysine (from L-Lysine Monohydrochloride) 1000 mg. Non-Medicinal Ingredients: Cellulose, Croscarmellose Sodium, Silica, Magnesium Stearate (vegetable source), Stearic Acid (vegetable source), Tablet Coating (hypromellose, stearic acid (vegetable source), cellulose).

Directions

Adult Dosage: Take 1 – 3 tablets daily between meals.

Legal Disclaimer

Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product.

Product description

L-Lysine is an essential amino acid that must be obtained through the diet or through supplementation. Lysine is necessary for the production of all proteins in the body, and is required for the maintenance of the structural proteins collagen and elastin, which form all connective tissue such as skin, tendon, and bone. L-Lysine is also a precursor to L-carnitine, which is needed for fat metabolism and energy production, which can support good health. In addition, L-Lysine supports a healthy immune system helping to fight cold sores. This double strength 1000mg tablet is ideal for tougher and recurring cold sore sufferers, and those dealing with more serious concerns of bone health and family history of osteoporosis. Our NOW natural and organic Supplements are an effective way to ensure you and your loved ones are getting essential vitamins, minerals and nutrients for daily optimal health. Since 2000, the NOW brand has been supporting Canadians with a mission to provide products that empower people to lead healthier lives. 70% of the NOW products in Canada are made or packaged in Guelph, Ontario, employing hundreds of Canadians from coast to coast. NOW performs 31,000 quality tests every month to ensure you get the highest quality supplements at the best price possible. Our promise - what is on the label, is precisely what is in the bottle.

From the brand

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  2. Products Inspired by Nature

    Natural at NOW means products are sustainable, plant-derived, and finished as close to nature as possible without harmful substances.

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  4. High-Quality Ingredients

    Strict quality requirements and scientific processes ensure that every ingredient accepted into our facilities meet our specifications.

  5. Now Foods Vit D-3 2,500 IU 180gel
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  6. Comprehensive Testing

    NOW's in-house laboratories test from raw ingredients to finished products to ensure that what’s on the label is in the bottle.

  7. Now Quercetin with Bromelain 240vcap
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  8. Superior Manufacturing

    NOW meets/exceeds FDA CGMPs, underscoring our commitment to quality. NOW was one of the first to be CGMP certified by a third-party.

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Product information

Technical Details

Manufacturer ‎NOW
Place of Business ‎NOW Canada Health Group, 5068 Whitelaw Road, RR6 Guelph, ON N1H 6J3
Item model number ‎L-Lysine 1000mg Extra Strength 100tabs
Product Dimensions ‎8 x 4 x 6 cm; 100 g
ASIN ‎B00J8NEP6K

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Product details

  • Is discontinued by manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 8 x 4 x 6 cm; 100 g
  • Date First Available ‏ : ‎ June 3 2014
  • Manufacturer ‏ : ‎ NOW
  • Place of Business ‏ : ‎ NOW Canada Health Group, 5068 Whitelaw Road, RR6 Guelph, ON N1H 6J3
  • ASIN ‏ : ‎ B00J8NEP6K
  • Item model number ‏ : ‎ L-Lysine 1000mg Extra Strength 100tabs
  • Customer Reviews:
    4.6 out of 5 stars 1,290 ratings

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Customer reviews

4.6 out of 5 stars
1,290 global ratings

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Customers say

Customers like the effectiveness and quality of the nutritional supplement. They mention it works better than any cream or medication for cold sores, helps with their cold sore condition, and helps coldsores heal faster. Customers also say it's a great brand and easy to swallow.

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Cold sore effectivenessQuality
37 customers mention "Cold sore effectiveness"37 positive0 negative

Customers like the effectiveness of the nutritional supplement. They mention it works better than any cream or medication for cold sores, helps with their cold sore condition, and works amazing against herpes. Some say it's a good product for prevention.

"Love this product works great for me ,relieves the pain and no scabbing" Read more

"...so have lots of water to get them down throat, however good product for prevention" Read more

"...] I personally found that it worked great and effectively every time. It helped ease my cold sores. The pills aren't the easiest to swallow...." Read more

"...regularly makes them go away 3X faster (one week vs. three) AND helps prevent them...." Read more

29 customers mention "Quality"29 positive0 negative

Customers are satisfied with the quality of the nutritional supplement. They mention it's a great brand and easy to swallow. Some say it works great and any cold sore starting to show up will disappear.

"...It seems like it's good quality and effective. Good value for the price." Read more

"This stuff is amazing Works wonderful" Read more

"They are awesome. Just take some iron with them and I’m good. ; P" Read more

"Really like that it is a great brand and easy to swallow." Read more

works great
5 out of 5 stars
works great
I personally found that it worked great and effectively every time. It helped ease my cold sores. The pills aren't the easiest to swallow. But for the amount you get of say it's good value.
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Top reviews from Canada

  • Cindy
    5.0 out of 5 stars Would recommend
    Reviewed in Canada on June 4, 2025
    Verified Purchase
    Love this product works great for me ,relieves the pain and no scabbing
    Helpful
     Report
  • dental hygienist
    5.0 out of 5 stars They work!
    Reviewed in Canada on April 22, 2025
    Verified Purchase
    horse pills in size, so have lots of water to get them down throat, however good product for prevention
    Helpful
     Report
  • Regina M
    5.0 out of 5 stars works great
    Reviewed in Canada on January 7, 2025
    Verified Purchase
    The media could not be loaded.
    I personally found that it worked great and effectively every time. It helped ease my cold sores. The pills aren't the easiest to swallow. But for the amount you get of say it's good value.
    Customer image
    Regina M
    5.0 out of 5 stars
    works great

    Reviewed in Canada on January 7, 2025
    I personally found that it worked great and effectively every time. It helped ease my cold sores. The pills aren't the easiest to swallow. But for the amount you get of say it's good value.
    Images in this review
    Customer image
    Helpful
     Report
  • Misty & Stacey
    4.0 out of 5 stars Satisfied
    Reviewed in Canada on May 2, 2023
    Verified Purchase
    I knew the pills were going to be big but didn’t think it would be an issue. The first one gave me anxiety so I broke the second day dose in half. It got stuck in my throat half way down and took a couple of gulps of water to completely swallow it. That freaked me out quite a bit. I decided, I needed to order a pill crusher, and chewed todays dose. I was expecting a super bad taste, but nothing. They have no flavour. I took the pill crusher out of my cart lol I just chased with some OJ. No issues.
    6 people found this helpful
    Helpful
     Report
  • Tracy Anderson
    5.0 out of 5 stars The pills are HUGE but they seriously suppress my appetite.
    Reviewed in Canada on January 22, 2025
    Verified Purchase
    Very large pills. Be careful. Since taking them I’ve had a loss of appetite. I’m still eating just get full fast.
    Helpful
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  • Wendy M
    5.0 out of 5 stars WORKS BETTER THAN $$$ ABREVA
    Reviewed in Canada on February 18, 2022
    Verified Purchase
    This works to prevent and treat recurring herpes simplex, AKA “cold sores”. Taking this regularly makes them go away 3X faster (one week vs. three) AND helps prevent them. I’ve had herpes simplex since I was a kid and used to have an outbreak several times a year with colds. Now I get them 1-2, less severe and goes away faster. Usually when I get one I realize I haven’t been taking it regularly and start up again. I sometimes use it with a lysine topical ointment. Don’t waste your money on ABREVA anything. I tried it years ago and the only thing it helped was the drug company’s profit margin. I’ve also been prescribed VALTREX as once or twice sores have migrated near my eyes and can cause blindness. VALTREX can be hard for the body to process and hasn’t worked any better for me than the lysine regimen. So, I choose a more natural remedy in this product I highly recommend.

    If you’ve found this review helpful, please tap the “thumbs up” (helpful) button below. Doing so will encourage me to write more reviews. Thanks in advance should you choose to do so! :)
    58 people found this helpful
    Helpful
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  • Kat
    5.0 out of 5 stars Good product
    Reviewed in Canada on January 6, 2025
    Verified Purchase
    The media could not be loaded.
    Easy to swallow but it's a big pill. It seems like it's good quality and effective. Good value for the price.
    Customer image
    Kat
    5.0 out of 5 stars
    Good product

    Reviewed in Canada on January 6, 2025
    Easy to swallow but it's a big pill. It seems like it's good quality and effective. Good value for the price.
    Images in this review
    Customer image
    Helpful
     Report
  • Y. Lebreton
    3.0 out of 5 stars L-Lysine - huge tablet
    Reviewed in Canada on March 14, 2024
    Verified Purchase
    I used to buy Webber which was big tablet, but this one is huge. I choked twice on it with barely bit of air for breathing. It scared me an awful lot. Now to scared to take them. I started cutting them in two. Bit easier to swallow but that scare did it for me. Price was reasonable compared to others.
    One person found this helpful
    Helpful
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Top reviews from other countries

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  • Rodrigo
    5.0 out of 5 stars Excelente complemento
    Reviewed in Mexico on June 12, 2025
    Verified Purchase
    Me ha ayudado con el control de las aftas bucales, a secarlas más rápido.
    Report

Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.