L-Proline L-Lysine 275 mg / 275 mg
Goals
$14.53 $0.48 per serving
Product analysis
L-Proline L-Lysine 275 mg / 275 mg combines amino acids with vitamin C to support normal collagen formation. Vitamin C also supports normal immune function, with benefits most relevant when intake is low.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality33
Vitamin C and mineral sources are named, but several amino-acid and herbal preparations are unspecified. Unknown shares of the vitamin C sources also limit a close quality comparison.
Ingredient Transparency63
Ingredient quantities are stated, but preparation details are uneven. The proportions of the vitamin C sources are missing, limiting comparison of that mixture.
Value For Money46
Vitamin C falls in a middle value range, while the full serving cost compares favorably when judged for hawthorn. The value of the amino acids and other ingredients remains uncertain.
Customer Satisfaction88
Customer feedback is strongly positive across several thousand reviews. The large review base makes the satisfaction pattern less dependent on a few individual opinions.
Product Focus67
The formula reaches beyond amino acids into vitamin C nutrition and herbal ingredients. Its clearest roles involve normal collagen and immune functions, with less support for broad extra benefits.
- Format
Tablet - Container
- 120 Tablet(s)
- Per serving
- $0.48
- Customer rating
- 4.7 · 4,559 ratings
Goals
Impact
High effect
Vitamin C · 1147 mgProline · 1.1 Gram(s)
Impact
High effect
Magnesium · 46 mgVitamin C · 1147 mg
Impact
High effect
Vitamin C · 1147 mg
Impact
High effect
Vitamin C · 1147 mg
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 20 Calorie(s) | |
Total Carbohydrates | 2 Gram(s) | |
Vitamin C (Calcium Ascorbate, Magnesium Ascorbate) | 1147 mg | |
Calcium (Calcium Ascorbate) | 66 mg | |
Magnesium (Magnesium Ascorbate) | 46 mg | |
L-Lysine | 1.1 Gram(s) | |
L-Proline | 1.1 Gram(s) | |
Proanthodyn (Grape Seed Extract) | 100 mg | |
Hawthorn Berry Extract | 100 mg |
Vitamin C (Calcium Ascorbate, Magnesium Ascorbate) · 1147 mg OverallScore71
Each serving provides 1147 mg of vitamin C at a moderate cost per gram. The vitamin C comes from Calcium Ascorbate and Magnesium Ascorbate, in undisclosed proportions. It contains sweeteners.
How this ingredient is rated
Active Ingredient Quality & Bioavailability83
The vitamin C comes from Calcium Ascorbate and Magnesium Ascorbate, in undisclosed proportions. The listed mineral ascorbates are buffered forms.
Vitamin C Chemical Form & Delivery System
The vitamin C comes from Calcium Ascorbate and Magnesium Ascorbate, in undisclosed proportions.
Gastric Comfort & pH Balance
The listed mineral ascorbates are buffered forms.
Dose, Safety & Label Transparency69
A serving provides 1147 mg of vitamin C. Sweeteners are present.
Optimal Dosage Targeting
A serving provides 1147 mg of vitamin C.
Purity & Excipient Quality
The product contains sweeteners.
Mineral & Source Transparency
The vitamin C amount and relevant mineral amounts are stated.
Value50
The cost per gram of vitamin C is moderate.
Price per Gram of Vitamin C
The cost per gram of vitamin C is moderate.
Hawthorn · 100 mg OverallScore46
The serving provides 100 mg of hawthorn fruit extract, with a lower whole-product cost per serving. No marker concentration or preparation ratio is available. The hawthorn species is not specified in the available information.
How this ingredient is rated
Composition and Label Disclosure29
No marker concentration or preparation ratio is available. The hawthorn species is not specified in the available information.
Marker and Preparation Disclosure
No marker concentration or preparation ratio is available.
Species Name Disclosure
The hawthorn species is not specified in the available information.
Composition and Label Disclosure
No separate preparation or amount details are evaluated in this group.
Commercial Price and Usability80
The whole-product cost per serving is lower.
Commercial Price per Labeled Serving
The whole-product cost per serving is lower.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
- Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
- Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
- Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
- The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
- Dietary intake and blood concentrations of antioxidants and the risk of cardiovascular disease, total cancer, and all-cause mortality: a systematic review and dose-response meta-analysis of prospective studies.
- Scientific Opinion on the substantiation of a health claim related to vitamin C and increasing non haem iron absorption pursuant to Article 14 of Regulation (EC) No 1924/2006.
- Vitamin C Depletion and All-Cause Mortality in Renal Transplant Recipients.
- Associations of Serum Biomarkers of Fruit and Vegetable Intake With the Risk of Cause-Specific Mortality and All-Cause Mortality: A National Prospective Cohort Study.
- Relation between plasma ascorbic acid and mortality in men and women in EPIC-Norfolk prospective study: a prospective population study. European Prospective Investigation into Cancer and Nutrition.
- Role of Oral Vitamin 'C' on Astigmatic Errors in Phacoemulsification.
- Ascorbic acid metabolites are involved in intraocular pressure control in the general population.
- Nutritional modulation of cataract.
- Dietary n-3 Fatty Acid, α-Tocopherol, Zinc, vitamin D, vitamin C, and β-carotene are Associated with Age-Related Macular Degeneration in Japan.
- Adherence to a Mediterranean diet, lifestyle and age-related macular degeneration: the Coimbra Eye Study - report 3.
- Lysine-fortified wheat flour improves the nutritional and immunological status of wheat-eating families in northern China.
- Success of L-lysine therapy in frequently recurrent herpes simplex infection. Treatment and prophylaxis
- Hypomagnesemia Is a Risk Factor for Infections after Kidney Transplantation: A Retrospective Cohort Analysis.
- Higher Intake of Dietary Magnesium Is Inversely Associated With COVID-19 Severity and Symptoms in Hospitalized Patients: A Cross-Sectional Study.
- Mg2+ regulates cytotoxic functions of NK and CD8 T cells in chronic EBV infection through NKG2D.