L-Proline L-Lysine 275 mg / 275 mg®

Botanicals with Nutrients

Brand: Source Naturals

Tablet or PillBotanical with NutrientsOn Market

Functions

General Wellness

Product label for L-Proline L-Lysine 275 mg / 275 mg — Click to view full label

Net Contents

120 Tablet(s)

Serving Size

2–4 Tablet(s)

Servings Per Container

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 21078 00758 6

Product Version

SN0758 REV B111-A

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

9Active Ingredients

9 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

4% Daily Value Coverage

4 ingredients report a %DV; 1 meet or exceed 100% DV.

2Dietary Attributes

Label states: Vegetarian, Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

Milk
Egg
Wheat
Soy
Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 2–4 Tablet(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Calories	20 Calorie(s)	—
Total Carbohydrates	2 Gram(s)	1%
Vitamin C(Calcium Ascorbate, Magnesium Ascorbate)	1147 mg	1912%
Calcium(Calcium Ascorbate)	66 mg	7%
Magnesium(Magnesium Ascorbate)	46 mg	12%
L-Lysine	1.1 Gram(s)	—
L-Lysine Hydrochloride, Crystalline	1374 mg	—
L-Proline	1.1 Gram(s)	—
Proanthodyn(Grape Seed Extract)	100 mg	—
Hawthorn Berry Extract	100 mg	—

Percent Daily Values (%DV) are based on a 2,000 calorie diet.

Other Ingredients

SorbitolStearic AcidMicrocrystalline CelluloseSilicon Dioxide, ColloidalMagnesium Stearate

Target Groups

VegetarianAdult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: 2 to 4 tablets daily with meals.

Warnings & Precautions

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Precautions re: Pregnant or Nursing or Prescription Medications

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Formulation

Formula re: Contains

L-Lysine is one of 9 essential amino acids that cannot be made in the body. It is the basic raw material for carnitine synthesis. L-Proline can be made in the body, but low protein/vegetarian diets may not always promote optimal L-proline production. L-Lysine and L-proline amino acids are the precursors of hydroxylysine (HL), and hydroxyproline (HP), two constituents of collagen. Collagen is an essential component of arterial linings. Vitamin C, a strong antioxidant, is also essential for the production of collagen. Hawthorn berry and grape seed extract are potent natural antioxidants due to their high levels of proanthocyanidin. These proanthocyanidin-esters are excellent free radical scavengers.

Formulation re: Other

Note: Natural plant variations may affect tablet color.

Formulation re: Vegetarian/Vegan

Suitable for vegetarians.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$5.04 – $29.99· 6 listings

Source Naturals L Proline L Lysine
Vitacost.com4.7(676)
$15.78
L-Lysine Source Naturals
iHerb4.7(1400)
$5.04Lowest
Source Naturals L-Proline Powder
Vitacost.com4.7(193)
$9.74
Source Naturals L-Lysine 100 Tablets
GoSupps.com4.7(1500)
$29.99
Source Naturals, L-Lysine Freeform Powder
Down to Earth Organic & Natural
$6.59
Source Naturals L-Lysine Free Form -Amino Acid Supplement Supports Energy Formation & Collagen* - 500 mg- 50 Tablets
GoSupps.com4.7(1500)
$24.99

Where to Buy Locally

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Research & Studies

Fermentation-derived compounds and their impact on skin health and dermatology: a review
RA Essmat, N Altalla, RA Amen - Innov. Med. Omics, 2024 - researchgate.net
… L-lysine has been noted for its beneficial effects in managing pityriasis rosea (PR), a skin … growth of new, healthy tissue in damaged areas. I addition, L-proline contributes to antiaging …
20246 citations
Nutritional profile of phytococktail from trans-Himalayan plants
P Dhar, AB Tayade, J Kumar, OP Chaurasia… - PLoS …, 2013 - journals.plos.org
… Therefore, the source of multiple vitamins, essential amino acids, fatty acids, and … health benefit in the stressful environment and could be used as a high value nutritional supplement. …
201325 citations
Lysine: Sources, Metabolism, Physiological Importance, and Use as a Supplement
M Holeček - International Journal of Molecular Sciences, 2025 - mdpi.com
… Potential medical applications of the phenomenon of lysine–arginine antagonism are listed … and the potential usefulness of L-lysine supplements for both preventive and therapeutic …
202525 citations
Amino acids: biochemistry and nutrition
G Wu - 2021 - api.taylorfrancis.com
Following its predecessor, the second edition of Amino Acids: Biochemistry and Nutrition presents exhaustive coverage of amino acids in the nutrition, metabolism and health of humans …
2021944 citations
Hydroxyproline in animal metabolism, nutrition, and cell signaling
S Hu, W He, G Wu - Amino Acids, 2022 - Springer
… -4-hydroxy-l-proline and trans-3-hydroxy-l-proline can scavenge … Supplementing trans-4-hydroxy-l-proline or its small … We estimated that, in healthy 3.9-kg and 110-kg growing pigs, the …
2022136 citations
Proteomic and amino acid profiling of monofloral honeys from the Thrace region: insights into composition
S Çelik - Journal of Food Measurement and Characterization, 2026 - Springer
… , such as pharmaceuticals, dietary supplements, and cosmetic products [9]. Proteomics is commonly applied in clinical settings for biomarker discovery in medical research. However, its …
2026

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Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2023-08-23. DSLD Label ID: 295951. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.