Net Contents
100 Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
Not specified
Supplement Form
Capsule
Bar Code (UPC/SKU)
0 27434 00141 0
Product Version
2130020.7
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 1 Capsule(s) · 1–2 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Lysine(L-Lysine Hydrochloride) | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Directions: Take 1 capsule 1-2 times per day or as directed by your health care professional. To achieve the clinically tested results related to supporting the immune system, taking a total of 2 capsules daily is recommended.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: If you are pregnant or nursing, taking any medication, or have any medical condition, consult a health care professional before use.
Precautions re: Children
Keep out of reach of children.
Storage
Storage
Keep tightly closed in a cool, dry place.
Formulation
Formulation re: Other
Bottled and packaged in the USA
Formula re: Contains
L-Lysine is an essential (free-form) amino acid that helps support collagen production, healthy hair and a healthy immune system. As the human body cannot create its own L-Lysine, it must be derived from diet and supplementation.
Formulation re: Does NOT Contain
No artificial colors, flavors, or preservatives added.
Formulation re: Other
Supports: Collagen Production Healthy Skin Immune System
FDA Statements
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.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
General Statements: All Other Content
Best if used by date shown on bottle.
General Statements: All Other Content
Instagram @Twinlab Facebook TwinlabVitamins
General Statements: All Other Content
New look, same great formula
Brand IP Statement(s) re: (c), (TM), (SM)
Twinlab 50 Trusted for 50 years
Manufacturer & Distributor
Distributor
Twinlab Corporation
Boca Raton, FL, 33431, U.S.A
1-800-645-5626
Market Reference
Twinlab L-Lysine 100 Capsules
Twinlab4.7(32)$11.99
Walgreens L-Lysine mg
Walgreens.com$11.99
Twinlab Amino Fuel Orange Rush Liquid Concentrate
William's Natural Foods4.6(236)$39.99
Walgreens 500 mg L-Lysine Tablets
Walgreens.com5.0(1)$11.99
L-Lysine 500 mg
SFI Health5.0(2)$17.99
L Lysine 1000mg 45 Tablets
Woodlands Health Centre$19.05
Lysine Injections
The B-12 Store$216.00
VIMERGY L-Lysine Capsules
vimergy.com4.9(106)$39.00
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Laketown Nutrition
4.7 (24)Vitamin & supplements store
114 S Randolph Ave, Eufaula, AL 36027
Southern Nutrition
5.0 (401)Vitamin & supplements store
4393 Victory Dr D, Columbus, GA 31903
Max One Nutrition Dothan
4.6 (36)Vitamin & supplements store
3230 Ross Clark Cir, Dothan, AL 36303
The Vitamin Shoppe
4.5 (167)Vitamin & supplements store
5555 Whittlesey Blvd Bldg 9 Suite 1, Columbus, GA 31909
Live Naturally Vitamins and Health Food Store
4.6 (30)Vitamin & supplements store
2726 Ledo Rd Ste 4, Albany, GA 31707
GNC
4.3 (92)Vitamin & supplements store
3074 Ross Clark Cir SUITE 13, Dothan, AL 36301
Southern Nutrition
5.0 (258)Vitamin & supplements store
5450 Whittlesey Blvd Ste 4, Columbus, GA 31909
Belinda Kay's Health Store
5.0 (40)Health food store
2021 Hwy, E 280 Byp, Phenix City, AL 36869
Research & Studies
High‐intensity interval training and essential amino acid supplementation: Effects on muscle characteristics and whole‐body protein turnover
KR Hirsch, CE Greenwalt, HE Saylor… - Physiological …, 2021 - Wiley Online Library
… and maintaining muscular health in a variety … L-lysine HCl, L-valine, L-isoleucine, L-arginine, L-threonine, L-phenylalanine, L-methionine, L-histidine, and L-tryptophan (REAAL, Twinlab …
202130 citationsSuperior bioavailability of EPA and DHA from a L-lysine salt formulation: a randomized, three-way crossover study
C Schön, A Micka, V Gourineni… - Food & Nutrition …, 2024 - pmc.ncbi.nlm.nih.gov
… health benefits. Due to limited physiological production and insufficient dietary supply, external supplementation … after a single oral dose in healthy subjects. Design A randomized, three-…
20241 citationsL-lysine dietary supplementation for childhood and adolescent growth: Promises and precautions
R Gunarathne, X Guan, T Feng, Y Zhao, J Lu - Journal of Advanced …, 2025 - Elsevier
Background L-lysine (lysine) is an essential amino acid that plays a vital role in human nutrition. It serves as a key component in protein synthesis and fulfills critical roles in various …
202555 citationsl-Lysine supplementation affects dietary protein quality and growth and serum amino acid concentrations in rats
CW Xiao, A Hendry, L Kenney, J Bertinato - Scientific Reports, 2023 - nature.com
… of l-lysine (Lys) supplementation on protein quality of diets, serum AA concentrations and associations between the ratio of supplemental … safety and health effects of supplemental Lys …
202328 citationsNutrition and resistance exercise during reconditioning from unloading
KJ Hackney, SB Cook… - Aviation, Space, and …, 2011 - asma.kglmeridian.com
Introduction: The recovery of muscle size and function following musculoskeletal unloading has received little attention in the scientific literature. Nutritional factors such as total energy, …
20118 citationsMetabolic effects of high-intensity interval training and essential amino acids
KR Hirsch, CE Greenwalt, HE Cabre, LM Gould… - European Journal of …, 2021 - Springer
… Individuals were excluded from participation if they: (1) had current and/or history of cardiometabolic disease or any medical or surgical events 6-months prior to enrollment; (2) had …
202117 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-06-16. DSLD Label ID: 268469. 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.
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