L-Proline L-Lysine 275 mg / 275 mg
Source Naturals
L-Proline L-Lysine 275 mg / 275 mg
4.7
★ ★ ★ ★ ★
(1887 ratings)
Vitamin C 1147 mg
Hawthorn 100 mg
Score 65.0
A potent blend of L-Proline, L-Lysine, high-dose buffered Vitamin C, Hawthorn, and Grape Seed Extract for comprehensive health support. However, its significant naming discrepancy regarding amino acid dosage undermines consumer clarity and trust.
Quantity: 120 Tablet(s)Servings size: 2 Tablet(s) (30 servings)
Selected goals:
Other goals:
Immunity
General Health
Skin Health
Anti-Aging
Anti-Inflammatory Support
leaderboard Score 65.0
A potent blend of L-Proline, L-Lysine, high-dose buffered Vitamin C, Hawthorn, and Grape Seed Extract for comprehensive health support. However, its significant naming discrepancy regarding amino acid dosage undermines consumer clarity and trust.
insights Analysis
Source Naturals' L-Proline L-Lysine product offers a comprehensive formulation aimed at supporting immunity, general health, skin, anti-aging, anti-inflammatory, heart, and cardiovascular health. It stands out with its high doses of L-Proline (1.1g per serving) and L-Lysine (1.1g per serving), crucial amino acids for collagen synthesis, combined with an impressive amount of buffered Vitamin C (over 2.2g per serving) which acts as a collagen cofactor and potent antioxidant. The inclusion of Hawthorn Berry Extract (100mg) specifically targets heart and cardiovascular well-being, while Grape Seed Extract (100mg) adds further antioxidant and vascular support. This multi-faceted approach theoretically positions it as a strong contender for its diverse goals. However, the product's naming (275mg/275mg) is severely misleading given the actual 1100mg of each amino acid per serving, leading to consumer confusion and potential misjudgment of dosage or efficacy. This fundamental labeling flaw significantly impacts consumer trust and overshadows the otherwise robust ingredient profile.
- Contains a very high dose of buffered Vitamin C (over 2.2g per serving) which is excellent for immunity, skin health, and antioxidant support.
- Provides substantial amounts of L-Proline and L-Lysine (1.1g each per serving), essential for collagen synthesis, benefiting skin, connective tissue, and cardiovascular health.
- Includes beneficial botanical extracts like Hawthorn Berry and Grape Seed, which synergistically support heart health, circulation, and provide additional antioxidant benefits.
- Offers a comprehensive, multi-ingredient approach to general wellness, anti-aging, and cardiovascular health, targeting multiple goals with one product.
- The price per serving is reasonable considering the comprehensive blend and high dosages of key active ingredients.
- The product name 'L-Proline L-Lysine 275 mg / 275 mg' is highly misleading, as each serving (2 tablets) actually contains 1100 mg (1.1 grams) of each amino acid, not 275 mg, creating significant consumer confusion and eroding trust.
- The tablets may be large, requiring multiple tablets per serving (two tablets per serving), which might be inconvenient for some users.
- The very high dosage of Vitamin C (over 2 grams per serving) may cause gastrointestinal discomfort or mild laxative effects in some sensitive individuals, even in buffered form.
- Individuals taking medications for heart conditions, blood pressure, or blood thinners should consult a healthcare professional before using due to the Hawthorn and Grape Seed extract content, which can interact with certain drugs.
- High doses of Vitamin C, despite being buffered, may still cause digestive upset such as diarrhea, nausea, or abdominal cramping in sensitive individuals.
$13.88($0.46 per serving)
 iHerb | $ 13.88 | |
 Vitacost | $ 15.39 | |
 Pure Formulas | $ 16.09 |
bolt Effectiveness for goals
Vitamin C is widely recognized for its role in immune function, supporting various cellular functions of both the innate and adaptive immune systems. Regular intake may help optimize immune responses, though it's not a cure for illnesses. It contributes to immune defense by supporting barrier functions and protecting against oxidative stress.
Hawthorn is commonly used for its potential benefits to heart health, particularly in supporting cardiovascular function. Research suggests it may help improve blood flow, strengthen heart contractions, and protect against oxidative damage. It has been studied for mild to moderate congestive heart failure.
Hawthorn extracts are traditionally used and scientifically studied for their potential to support cardiovascular health. They may help improve the heart's pumping efficiency and support healthy blood flow. Research suggests benefits for mild to moderate heart conditions, often acting to strengthen cardiac contractions.
Vitamin C is recognized for its role in immune function, supporting various cellular functions of both the innate and adaptive immune systems. While it does not prevent colds in the general population, it may reduce the duration and severity of the common cold for some individuals, particularly those under physical stress. It acts as an antioxidant, protecting immune cells from damage.
While Vitamin C does not prevent the common cold, some studies suggest that regular intake may slightly reduce the duration and severity of cold symptoms in certain populations. The effect is generally modest and more pronounced in individuals under physical stress. It's primarily beneficial for maintaining overall immune health.
schedule Dosage, timing & forms
Vitamin C is widely available as ascorbic acid, which is the most common form. Other forms include mineral ascorbates (like sodium ascorbate, calcium ascorbate), liposomal Vitamin C, and sustained-release formulations. These various forms aim to provide different absorption rates or reduce acidity for sensitive stomachs.
For most adult men, the recommended daily allowance (RDA) is 90 mg, and for adult women, it is 75 mg. Smokers require an additional 35 mg per day. Higher doses are sometimes used for specific purposes under medical supervision, but the tolerable upper intake level (UL) for adults is 2,000 mg per day.
For most adults, the Recommended Dietary Allowance (RDA) for Vitamin C is 75-90 mg per day. However, many supplements offer dosages ranging from 500 mg to 1000 mg, which are often used for general immune support. Higher doses should be discussed with a healthcare professional.
The tolerable upper intake level (UL) for Vitamin C in adults is 2,000 mg per day. Exceeding this limit regularly may lead to gastrointestinal issues like diarrhea, nausea, and abdominal cramps. Always consult a healthcare professional before taking very high doses.
Vitamin C is water-soluble, meaning it doesn't require fat for absorption and can be taken at any time. Some prefer to take it in divided doses throughout the day to maintain consistent levels, while others take it once daily. There is no universally 'best' time; consistency is key.
health_and_safety Safety & interactions
Yes, Hawthorn can significantly interact with prescription heart medications, including those for blood pressure (e.g., beta-blockers, calcium channel blockers), and heart rhythm (e.g., digoxin). It may amplify their effects, leading to excessively low blood pressure or altered heart rate. Always consult a healthcare professional before combining Hawthorn with any cardiac medication.
Yes, Hawthorn may interact with blood-thinning medications, also known as anticoagulants or antiplatelets. It could potentially increase their effects, raising the risk of bleeding or bruising. It is crucial to discuss Hawthorn use with a healthcare provider if you are taking blood thinners.
Yes, Vitamin C can interact with certain medications. For example, it might affect the absorption or effectiveness of some chemotherapy drugs, estrogen, or protease inhibitors. It's advisable to consult a healthcare provider if you are on prescription medication.
Hawthorn can cause various side effects, including nausea, dizziness, fatigue, sweating, and stomach upset. Less common effects may include headache, heart palpitations, and skin rash. These are often mild and may subside with continued use.
While generally well-tolerated, high doses of Vitamin C can sometimes cause mild gastrointestinal issues like nausea, diarrhea, and stomach cramps. These effects are usually temporary and diminish when the dosage is reduced. Less common side effects can include heartburn or headache.
Ingredients
| Ingredient | Amount per serving |
|---|---|
Calories | 20 Calorie(s) |
Total Carbohydrates | 2 Gram(s) |
Vitamin C | 1147 mg |
Calcium | 66 mg |
Magnesium | 46 mg |
L-Lysine | 1.1 Gram(s) |
L-Proline | 1.1 Gram(s) |
Proanthodyn | 100 mg |
Hawthorn Berry Extract | 100 mg |
Categories
Vitamin C 95.0
It provides an exceptionally high dose of buffered Vitamin C (2.294g per serving) from multiple forms (Magnesium Ascorbate, Calcium Ascorbate), making it highly effective for those seeking robust Vitamin C supplementation with potentially less gastric upset compared to pure ascorbic acid.
Hawthorn 80.0
The inclusion of Hawthorn Berry Extract (100mg per serving) significantly contributes to the product's cardiovascular benefits, although dedicated Hawthorn supplements might offer higher isolated dosages for individuals primarily focused on specific heart concerns.
Goals
Heart Health 95.0
This product truly excels in heart and cardiovascular support due to the synergistic effects of Hawthorn Berry (well-researched for improving heart function and blood pressure regulation), Grape Seed Extract (improves vascular health and circulation), Vitamin C (essential for vascular integrity and an antioxidant), and L-Proline/L-Lysine (crucial for the structural integrity of blood vessels and arteries).
This product truly excels in cardiovascular support due to the synergistic effects of Hawthorn Berry (well-researched for improving heart function and blood pressure regulation), Grape Seed Extract (improves vascular health and circulation), Vitamin C (essential for vascular integrity and an antioxidant), and L-Proline/L-Lysine (crucial for the structural integrity of blood vessels and arteries).
Immunity 90.0
The product contains a very high dose of buffered Vitamin C (over 2g per serving), which is a powerful immune system booster and antioxidant, significantly supporting various aspects of immune function and resilience.
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