SuppHelper
search
Home›Supplements›Amino Acid›Lysine›L-Lysine 500 mg NOW
Product Image

L-Lysine 500 mg

NOW
4.8
★ ★ ★ ★ ★
(15335 ratings)
Lysine 500 mg
Product Image
Score 86

An excellent value L-Lysine product from NOW, providing a standard 500mg dose with widespread customer approval.

How scoring works
scaleQuantity:100 Tablet(s) • (100 servings)
track_changesGoals:
flag Hair Health
flag Immunity
flag Bone Health
flag Skin Health

leaderboard Score 86

An excellent value L-Lysine product from NOW, providing a standard 500mg dose with widespread customer approval.

How scoring works
Also available as 1 option
250 servings Lysine 500 mg • 250 Tablet(s) • 250 servings $12.70 ($0.05 per serving)
$5.80($0.05 per serving)
Daily Vita
$ 5.80
Vitacost
$ 6.11
iHerb
$ 6.11
Amazon
$ 7.94
flagReport prices
psychologyAnalysis

NOW's L-Lysine 500 mg offers a straightforward approach to supplementation with L-Lysine Hydrochloride in a tablet form. This is a widely used and well-understood form of the amino acid, delivering a consistent 500mg dose per serving. The tablet format is a traditional and convenient way to take supplements.

A major strength of this product is its remarkable affordability, featuring one of the lowest prices per serving available. Combined with an extremely high number of customer reviews, it suggests broad acceptance and satisfaction among a large user base, making it a reliable and economical choice for many.

thumb_upPros
  • Very low price per serving, offering excellent value.
  • Massive number of customer reviews, indicating widespread popularity.
  • Contains L-Lysine Hydrochloride, a well-established form of L-Lysine.
  • Simple and convenient tablet form.
thumb_downCons
  • Dosage is a standard 500mg, which might be low for those needing higher amounts.
  • Tablet form might not be preferred by everyone compared to capsules or powder.
warningWarnings
  • L-Lysine can sometimes cause mild digestive discomfort in sensitive individuals.
  • Consult a healthcare professional if you have kidney issues or are on specific medications.
scienceNutrient quality
85 Highest impact

The product features L-Lysine Hydrochloride, which is a common, stable, and well-absorbed form of L-Lysine. It delivers a reliable 500mg dose of the active ingredient.

visibilityIngredient transparency
85 Highest impact

The ingredient list clearly identifies L-Lysine Hydrochloride and its precise quantity. This provides good clarity regarding the active component of the supplement.

workspace_premiumValue for money
98 Highest impact

This product offers exceptional value for money due to its very low price per serving combined with a reliable dosage and strong brand reputation. It's hard to beat its affordability.

thumb_upCustomer satisfaction
98 Highest impact

With over 15,000 reviews, this product demonstrates extremely high customer satisfaction and widespread acceptance. Such a large volume of feedback is a strong indicator of a positive user experience.

storefrontBrand
95 Highest impact

NOW is a very well-known and widely trusted brand in the supplement industry. The vast number of reviews for this product reflects strong brand recognition and consumer confidence.

flagReport analysis
track_changesGoals
flagHair Health
Impact
Highest effect
L-Lysine is an essential amino acid that supports the body's ability to build proteins, including those important for hair structure. The consistent 500mg dose is a good daily contribution to this goal.
View goal →
flagImmunity
Impact
Highest effect
This L-Lysine product can contribute to the body's natural defense mechanisms. The standard and accessible dosage makes it a practical option for ongoing immune support.
View goal →
flagBone Health
Impact
Highest effect
L-Lysine may assist in maintaining healthy calcium levels in the body, which is vital for strong bones. This supplement offers a reliable way to incorporate L-Lysine for bone health.
View goal →
scienceIngredients
IngredientAmount per serving
L-Lysine
500 mg
grain_off Gluten Free person Adults 18–50 eco Vegan free_breakfast Dairy Free eco Vegetarian
flagReport overview
Lysine 90
As a Lysine supplement, it delivers the core ingredient effectively and affordably. The use of L-Lysine Hydrochloride is a standard and effective form for the intended benefits of Lysine.
scienceView ingredientinventory_2View products
inventory_2Alternative products
90 Value

L-Lysine 1000 mg

AN Amazing Nutrition Amazing Formulas
4.6
★★★★★
(4173 ratings)
This alternative offers double the L-Lysine dosage at 1000 mg per serving for a very similar cost, giving you much more Lysine per serving for your money and a great satisfaction score.
Other sellers (1)
88 Value

L-Lysine 500 mg

Jarrow Formulas
4.8
★★★★★
(4286 ratings)
With a similar cost per serving to your current product, this L-Lysine capsule comes with an even higher satisfaction score, representing a great balance of quality and cost.
Other sellers (3)
88 Value

L-Lysine 500 mg

NOW
4.8
★★★★★
(4489 ratings)
This is another solid 500mg L-Lysine option with a slightly higher satisfaction score and similar cost per serving, making it a competitive choice for good value.
Other sellers (5)
98 Performance

L-Lysine 500 mg

NOW
4.9
★★★★★
(441 ratings)
This is another L-Lysine product from the same brand, but it carries an even higher overall satisfaction score, suggesting it might be an even more highly regarded option for your goals.
Other sellers (1)
92 Performance

L-Lysine 500 mg

California Gold Nutrition
4.8
★★★★★
(4438 ratings)
This L-Lysine is well-regarded for its purity and effectiveness, offering excellent support for hair, immunity, and bone health, with a higher overall satisfaction score.
Other sellers (1)
90 Performance

L-Lysine Powder 960 mg

Carlson
4.8
★★★★★
(2270 ratings)
This powdered L-Lysine provides a higher dose per serving (960 mg) and boasts a higher satisfaction score, potentially offering enhanced benefits for your goals in a convenient powder form.
Other sellers (3)
95 Budget

L-Lysine

NOW
4.8
★★★★★
(3972 ratings)
This L-Lysine powder offers an incredibly low cost per serving, making it a highly economical option if you're looking for an even cheaper way to get your lysine.
Other sellers (3)
85 Budget

L-Lysine 600 mg

21st Century
4.7
★★★★★
(1177 ratings)
This tablet offers a slightly higher L-Lysine dose per serving with an added touch of calcium, all at a slightly lower cost per serving, contributing to good value.
Other sellers (0)
78 Budget

L-Lysine 500 mg

Sundown
5.0
★★★★★
(3 ratings)
A straightforward L-Lysine capsule providing the standard 500 mg dose, available at a slightly lower cost per serving than your current product.
Other sellers (0)
90 Value

L-Lysine 1000 mg

AN Amazing Nutrition Amazing Formulas
4.6
★★★★★
(4173 ratings)
This alternative offers double the L-Lysine dosage at 1000 mg per serving for a very similar cost, giving you much more Lysine per serving for your money and a great satisfaction score.
Other sellers (1)
88 Value

L-Lysine 500 mg

Jarrow Formulas
4.8
★★★★★
(4286 ratings)
With a similar cost per serving to your current product, this L-Lysine capsule comes with an even higher satisfaction score, representing a great balance of quality and cost.
Other sellers (3)
88 Value

L-Lysine 500 mg

NOW
4.8
★★★★★
(4489 ratings)
This is another solid 500mg L-Lysine option with a slightly higher satisfaction score and similar cost per serving, making it a competitive choice for good value.
Other sellers (5)
98 Performance

L-Lysine 500 mg

NOW
4.9
★★★★★
(441 ratings)
This is another L-Lysine product from the same brand, but it carries an even higher overall satisfaction score, suggesting it might be an even more highly regarded option for your goals.
Other sellers (1)
92 Performance

L-Lysine 500 mg

California Gold Nutrition
4.8
★★★★★
(4438 ratings)
This L-Lysine is well-regarded for its purity and effectiveness, offering excellent support for hair, immunity, and bone health, with a higher overall satisfaction score.
Other sellers (1)
90 Performance

L-Lysine Powder 960 mg

Carlson
4.8
★★★★★
(2270 ratings)
This powdered L-Lysine provides a higher dose per serving (960 mg) and boasts a higher satisfaction score, potentially offering enhanced benefits for your goals in a convenient powder form.
Other sellers (3)
flagReport alternatives

SuppHelper

Compare supplements smarter. Science-backed, user-rated, updated daily.

Explore

  • Compare Supplements
  • Health Goals
  • Stacks

Legal

  • Privacy Policy
  • Terms of Use
  • Medical Disclaimer

Stay in the Loop

Medical disclaimer: Information on SuppHelper is for educational purposes only and is not medical advice. Statements on this site about dietary supplements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before using supplements. Read full disclaimer

© 2025 SuppHelper. All rights reserved.