L-Lysine Pharmaceutical Grade
Swanson
L-Lysine Pharmaceutical Grade
4.7
★ ★ ★ ★ ★
(480 ratings)
Lysine 500 mg
Score 88.0
A high-purity, pharmaceutical-grade L-Lysine from Swanson at a good price, balancing quality and value.
Quantity: 90 Capsule(s)Servings size: 1 Veggie Capsule(s) (90 servings)
Selected goals:
Other goals:
Immunity
Skin Health
Hair Health
leaderboard Score 88.0
A high-purity, pharmaceutical-grade L-Lysine from Swanson at a good price, balancing quality and value.
insights Analysis
Swanson's L-Lysine Pharmaceutical Grade provides 500mg of L-Lysine Monohydrochloride per capsule, indicating a high standard of purity often associated with pharmaceutical-grade ingredients. This level of purity can be reassuring for consumers seeking a clean and effective supplement. At 7 cents per serving, it offers a very competitive price for a product with this quality claim, making it an attractive option for daily support of immunity, skin, and hair health. The consistent positive reviews further support its reliability and consumer satisfaction.
- Pharmaceutical Grade quality, indicating high purity and potency.
- Competitive price per serving for its quality claim.
- Standard and effective 500mg dosage per capsule.
- Capsule form is generally easy to consume.
- Does not offer a higher 1000mg dosage option.
- Review count is lower than some market leaders, though still substantial.
$7.99($0.08 per serving)
 iHerb | $ 7.99 | |
 Amazon | $ 11.04 |
bolt Effectiveness for goals
Lysine is commonly used to help prevent and treat cold sores, which are caused by the herpes simplex virus (HSV-1). Studies suggest it may interfere with the virus's ability to replicate, potentially by altering the balance of amino acids needed for viral growth. This action can lead to reduced frequency, severity, and healing time of outbreaks.
As an essential amino acid, Lysine is a fundamental building block for proteins in the body. It is crucial for the synthesis of collagen, which is vital for connective tissues like skin, bone, and cartilage. This role directly supports muscle repair and growth, especially after exercise.
Yes, Lysine is known to play a role in calcium absorption and retention within the body. It helps to transport calcium, making it more available for bone formation and maintenance. This property contributes to its potential benefit for overall bone health.
Some preliminary research suggests that Lysine may have an anxiolytic (anxiety-reducing) effect. Studies, particularly those involving humans under stress, indicate it might modulate stress responses and reduce cortisol levels. However, more extensive research is needed to confirm these effects.
Lysine is essential for the formation of collagen, a key protein critical for skin and connective tissue structure. Adequate Lysine levels are therefore important for the body's natural wound repair processes. It aids in tissue regeneration and strengthening of new tissue.
schedule Dosage, timing & forms
Typical dosages for L-Lysine vary based on individual needs and the intended purpose, often ranging from 500 mg to 3000 mg per day. It is common for this to be divided into multiple doses throughout the day. Always follow the specific instructions on the product label or consult with a healthcare professional for personalized advice.
L-Lysine can generally be taken with or without food. Some individuals prefer taking it on an empty stomach to potentially enhance absorption, while others take it with meals to minimize any potential digestive discomfort. It is best to follow the directions provided on your specific supplement's label.
For general health, an adult daily dose often ranges from 500 mg to 1000 mg. However, specific dosages can vary depending on individual needs and health goals. Always follow product label instructions or consult a healthcare professional for personalized guidance.
While general supplement dosages typically range up to 3 grams (3000 mg) daily, higher amounts have been explored in specific research contexts. It is important not to exceed the dosage recommended on your supplement's label or by a healthcare professional, especially for long-term use. Excessive intake could potentially lead to side effects.
L-Lysine is widely available in several forms, including capsules, tablets, and powder. Liquid forms are also available, though less common. The choice of form often depends on personal preference, convenience, and desired dosage flexibility.
health_and_safety Safety & interactions
For general use, doses of 500 mg to 3 grams per day are commonly used and often considered safe. For specific conditions like cold sore management, higher short-term doses might be used under professional guidance. Always follow product label instructions or a healthcare provider's advice.
Lysine is generally well-tolerated at recommended doses. Mild side effects may include stomach pain, diarrhea, and nausea. If severe or persistent symptoms occur, discontinue use and consult a healthcare professional.
Lysine may interact with arginine supplements, as they compete for absorption in the body. It might also potentially increase the absorption of calcium, which could be relevant for individuals taking calcium supplements or certain diuretics. Always discuss all supplements and medications with a healthcare provider.
There is insufficient reliable information about the safety of taking lysine supplements during pregnancy or breastfeeding. It is generally advised for pregnant or breastfeeding individuals to avoid lysine supplementation unless specifically recommended and monitored by a healthcare professional. Prioritize consulting a doctor before use.
Lysine may potentially increase the absorption of calcium in the body. While this might be beneficial for some, individuals with hypercalcemia or those taking high doses of calcium or vitamin D should monitor their calcium levels. Discuss this with a healthcare provider, especially if you have pre-existing conditions.
Ingredients
| Ingredient | Amount per serving |
|---|---|
L-Lysine | 500 mg |
Categories
Lysine 92.0
This product stands out in the Lysine collection due to its 'Pharmaceutical Grade' designation and excellent price-to-quality ratio. It appeals to consumers who prioritize both high purity and cost-effectiveness in their L-Lysine supplementation.
Goals
Immunity 92.0
The 'Pharmaceutical Grade' 500mg L-Lysine ensures high purity and efficacy for immune support, particularly beneficial in managing viral concerns like cold sores, providing reliable action.
Skin Health 92.0
High-purity L-Lysine effectively supports collagen synthesis, which is crucial for skin elasticity and repair. The pharmaceutical grade ensures optimal absorption and utilization for skin health.
Hair Health 92.0
The 500mg dose of high-quality L-Lysine provides essential building blocks for protein synthesis, fundamentally contributing to the strength and healthy growth of hair.
Recommended Alternatives
92 Value 
L-Lysine 1000 mg
AN Amazing Nutrition Amazing Formulas
4.6
★★★★★
(4146 ratings)
This AN Amazing Nutrition product offers a robust 1000mg dose at an excellent price per serving of 7 cents, providing twice the active ingredient for a very good value, matching the analyzed product's price point for higher potency.
88 Value 
L-Lysine 500 mg
Jarrow Formulas
4.8
★★★★★
(4287 ratings)
This Jarrow Formulas product provides 500mg of L-Lysine for 7 cents per serving, matching the price point and coming from a well-regarded brand, offering comparable value.
85 Value 
L-Lysine 1000 mg
Solgar
4.7
★★★★★
(9284 ratings)
From the trusted Solgar brand, this product offers a 1000mg dose for 9 cents per serving in a large 250-count bottle. It provides strong value by combining reputable quality with a high dosage for a reasonable cost per serving.
95 Performance
L-Lysine 1000 mg
Solgar
4.7
★★★★★
(9284 ratings)
This Solgar product provides a higher 1000mg dose from a highly reputable brand known for exceptional quality and consistency, offering greater potency and convenience per serving.
93 Performance 
L-Lysine Beta Glucan 1000 mg
Solaray
4.7
★★★★★
(545 ratings)
This Solaray alternative not only offers a higher 1000mg L-Lysine dose but also includes Beta Glucan for enhanced immune support, providing a more comprehensive and synergistic benefit.
90 Performance 
Lysine 500 mg
Thorne
4.8
★★★★★
(5405 ratings)
Thorne is renowned for its stringent quality control and pure formulations, often considered a top-tier brand. This makes it a 'better' choice for those who prioritize the absolute highest standards of ingredient purity, even at a higher price.
95 Budget 
L-Lysine 500 mg
NOW
4.9
★★★★★
(441 ratings)
Offers the same 500mg L-Lysine dose at a significantly lower price per serving of 4 cents, making it a highly economical choice for basic L-Lysine supplementation.
92 Budget 
L-Lysine 500 mg
NOW
4.8
★★★★★
(13912 ratings)
At 5 cents per serving, this NOW product delivers the same 500mg dose for less, backed by an exceptionally high review count, representing superior affordability.
90 Budget 
Free-Form L-Lysine 500 mg
Swanson Premium Brand
4.8
★★★★★
(1563 ratings)
From the same brand, this 'Free-Form' 500mg L-Lysine at 6 cents per serving offers a slightly better price for a highly bioavailable form, if the 'Pharmaceutical Grade' isn't a strict requirement.
92 Value
L-Lysine 1000 mg
AN Amazing Nutrition Amazing Formulas
4.6
★★★★★
(4146 ratings)
This AN Amazing Nutrition product offers a robust 1000mg dose at an excellent price per serving of 7 cents, providing twice the active ingredient for a very good value, matching the analyzed product's price point for higher potency.
88 Value
L-Lysine 500 mg
Jarrow Formulas
4.8
★★★★★
(4287 ratings)
This Jarrow Formulas product provides 500mg of L-Lysine for 7 cents per serving, matching the price point and coming from a well-regarded brand, offering comparable value.
85 Value
L-Lysine 1000 mg
Solgar
4.7
★★★★★
(9284 ratings)
From the trusted Solgar brand, this product offers a 1000mg dose for 9 cents per serving in a large 250-count bottle. It provides strong value by combining reputable quality with a high dosage for a reasonable cost per serving.
95 Performance
L-Lysine 1000 mg
Solgar
4.7
★★★★★
(9284 ratings)
This Solgar product provides a higher 1000mg dose from a highly reputable brand known for exceptional quality and consistency, offering greater potency and convenience per serving.
93 Performance
L-Lysine Beta Glucan 1000 mg
Solaray
4.7
★★★★★
(545 ratings)
This Solaray alternative not only offers a higher 1000mg L-Lysine dose but also includes Beta Glucan for enhanced immune support, providing a more comprehensive and synergistic benefit.
90 Performance
Lysine 500 mg
Thorne
4.8
★★★★★
(5405 ratings)
Thorne is renowned for its stringent quality control and pure formulations, often considered a top-tier brand. This makes it a 'better' choice for those who prioritize the absolute highest standards of ingredient purity, even at a higher price.