NOW
NOW L-Lysine 500 mg (Capsules)
Essential amino acid your body needs but can't produce
Skip or cancel anytime
Get Notified When It's Back
Enter your email and we'll let you know the moment this item is restocked.
One-time notification only. No spam.
Why Choose This Product
IMMUNE SUPPORT
L-Lysine supports your body's natural immune response as an essential building block for proteins.
ESSENTIAL AMINO
Your body cannot manufacture lysine — it must come from diet or supplementation.
PROTEIN BUILDING
Lysine is a fundamental component needed for proper protein synthesis throughout your body.
Is This Right For Me?
Answer 2 quick questions for a personalised answer
What's your main goal?
What's your biggest challenge right now?
How It Works
How It Works
L-Lysine is an essential amino acid that serves as a building block for proteins throughout your body. Since your body cannot produce lysine naturally, you must obtain it through diet or supplementation to maintain adequate levels for proper protein synthesis and immune function.
Who It's For
Adults looking to support their immune system with an essential amino acid. Those following restrictive diets who may not get adequate lysine from food sources. People seeking a simple, well-researched amino acid supplement.
Who It's Not For
Those already getting abundant lysine from protein-rich diets may not need supplementation. Pregnant or nursing women should consult their healthcare provider.
About This Product
What It Does
L-Lysine 500mg delivers an essential amino acid your body requires but cannot produce on its own. This fundamental building block supports protein synthesis and contributes to your body's natural immune response.
Why It Works
- ESSENTIAL AMINO ACID: Unlike non-essential amino acids, lysine must come from external sources — your body simply cannot make it.
- PROTEIN SYNTHESIS: Works as a key component in building and maintaining proteins throughout your body's tissues.
- IMMUNE CONTRIBUTION: Supports your natural immune system as part of proper protein function and cellular health.
What's Inside
Each capsule contains 500mg of L-Lysine from L-Lysine monohydrochloride in a simple gelatin capsule. Clean formula with minimal additional ingredients including stearic acid, cellulose, rice flour and magnesium stearate from vegetable sources.
Why we carry it: NOW's rigorous quality standards and decades of amino acid expertise make this a reliable choice for essential lysine supplementation.
How to Take
Full Ingredients
| Supplement Facts | ||
| Servings Size: 1 Capsule | ||
| Servings Per Container: 100 | ||
| Amount per Serving | % Daily Value | |
| L-Lysine (from L-Lysine Monohydrochloride) | 500 mg | |
| * Percent Daily Values are based on 2,000 calorie diet. | ||
| Daily Value not established. | ||
| Other Ingredients: Gelatin (capsule), Stearic Acid (vegetable source), Cellulose, Rice Flour and Magnesium Stearate (vegetable source). | ||
| Caution: Do Not Eat Freshness Packet. Keep in Bottle. | ||
| Store in a cool, dry place. | ||
Customer Reviews
4 reviews
Questions & Answers
Research & Science
Explore the dropdown below to view peer-reviewed literature related to NOW L-Lysine 500 mg (Capsules)
