Now Foods L-Lysine helps boost immune health and protein synthesis, aiding collagen formation for healthier skin, joints and connective tissue. This key active ingredient, L-Lysine HCl, offers a reliable daily dose when taken on an empty stomach. The brand NOW Foods has been family owned since 1968, recognised for transparent quality, GMP compliant production, and third party testing. [trust and testing verified]

Benefits & Features:

• Supports immune health daily.
• Aids collagen formation and tissue repair.
• A simple daily tablet supported by L-Lysine HCl.
• Designed for daily use on an empty stomach.
• Non-GMO, colour and vegan friendly, this formula focuses on purity and simplicity, avoiding unnecessary additives so you can trust what you’re taking each day.

NOW Foods L-Lysine is rooted in a long standing commitment to purity and transparency. NOW Foods has been family owned since 1968, prioritises GMP compliant production, third party testing, and strict allergen controls. The formula uses L-Lysine HCl as a straightforward amino acid, with no proprietary blends, offering a clean, reliable source to support immune function and collagen formation. These commitments help ensure that you get a dependable amino acid to support immune function and collagen formation.

Other Ingredients - Hypromellose (cellulose capsule), Stearic Acid (vegetable source), Microcrystalline Cellulose and Rice Flour.
Free From - Wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients.

• GTIN: 733739001108
• Manufacturer: Now Foods
• Size: 500 mg 100 Capsules
• Categories: Best SellersCold Sore TreatmentsLysine SupplementsNew ArrivalsNOW FoodsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take one capsule up to three times a day.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: L-Lysine (Lysine HCl)

L-Lysine is an essential amino acid required for protein synthesis and is involved in collagen and elastin formation, supporting connective tissue health and immune function.

This form is L-Lysine HCl, a commonly used supplement form providing the amino acid in a highly absorbable salt form.

What Does L-Lysine Do?

L-Lysine participates in protein production and connective tissue maintenance, which supports normal skin, joints, and tissue repair processes. It is also involved in immune system function and may assist calcium absorption as part of wider nutrient interactions.

Scientific research suggests these roles are part of normal physiological function, aligning with EFSA and NHS guidance on amino acid contributions to body processes.

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

NOW Foods sets the bar for production excellence through a long-standing commitment to quality, transparency and reliable manufacturing. This brand’s heritage as a family-owned business since 1968 positions NOW Foods as a trusted partner known for pharmaceutical-grade amino acids and a clear focus on third-party testing and allergen control in GMP-certified facilities.

NOW Foods stands out in the UK market for its rigorous quality standards, non-GMO status, kosher and vegan/vegetarian certifications, and its proactive approach to ingredient purity and safety. This aligns with Welzo’s criteria for responsible sourcing and rigorous verification of ingredient quality, which our team evaluates with Welzo's healthcare professionals and our standards guide provided by how we verify ingredient quality.

For this L-Lysine selection, NOW Foods’ straightforward, well-regulated formulation fits our product-specified needs while delivering a dependable, well-supported supply chain. Our partnership is grounded in shared commitment to quality, safety and UK-market compliance, ensuring consistent, trusted access for customers.