Carlson L-Lysine Powder 960mg 100g | ~83 Servings

Carlson L-Lysine Powder delivers 960mg of free-form L-lysine per serving — an essential amino acid the body cannot produce on its own, critical for immune function, collagen synthesis, tissue repair, calcium absorption, and the management of herpes simplex outbreaks. 100g provides approximately 83 servings. Gluten free, casein-free. Carlson, providing quality nutritional supplements since 1965.

Why you need it

L-lysine is one of nine essential amino acids — meaning the body cannot synthesise it and must obtain it entirely from diet or supplementation. It plays several distinct and important roles in human health that make it one of the most widely supplemented amino acids.

Collagen synthesis: Lysine is a critical building block for collagen, the most abundant protein in the body. It is required for the hydroxylation of proline and the cross-linking of collagen fibres, which gives connective tissue its strength and elasticity. Without adequate lysine, collagen production is impaired — affecting skin, tendons, ligaments, cartilage, and bone.

Cold sore management: Lysine is well known for its role in managing herpes simplex virus (HSV) outbreaks. The virus requires arginine — another amino acid — to replicate. Lysine competes with arginine for absorption and cellular uptake, effectively reducing the arginine available to the virus. Research consistently shows that lysine supplementation reduces the frequency, severity, and duration of cold sore outbreaks in those prone to them.

Immune function: Lysine supports the production of antibodies and immune cells, and plays a role in the body's response to stress and infection. It also supports the absorption of calcium from the gut and reduces its excretion through the kidneys, contributing to bone density over time.

Key benefits

• Cold sore management — competes with arginine to reduce HSV replication frequency and severity
• Collagen synthesis — essential for cross-linking collagen fibres in skin, tendons, ligaments, and bone
• Immune support — supports antibody production and immune cell function
• Calcium absorption — enhances calcium uptake and reduces urinary calcium loss
• Tissue repair — supports recovery and maintenance of connective tissue
• Free-form powder — rapidly absorbed, easy to mix into food or liquid, flexible dosing

Formula

960mg L-lysine (from L-lysine hydrochloride) per ½ tsp (1.2g) serving. Free-form amino acid for rapid absorption. No fillers, no capsule. Gluten free, casein free.

Supplement Facts

Serving size: ½ tsp / 1 level scoop (1.2g) | Servings per container: ~83
L-Lysine (from L-lysine hydrochloride): 960mg
*Daily Value not established.

Suggested use

Adults: Take ½ teaspoon (1 level enclosed scoop) daily, mixed into food or liquid. The powder is virtually tasteless and dissolves easily in water, juice, or smoothies. Sold by weight, not volume — some variation in appearance and consistency is normal.

Other ingredients

None. 100% L-lysine hydrochloride.

Why trust this product

Carlson has been providing quality nutritional supplements since 1965, manufactured in an FDA-regulated facility with potency and quality guaranteed. Free-form amino acids are the most bioavailable form — absorbed directly without requiring digestion of a protein source.

Important

Pregnant or breastfeeding women, and those with kidney disease or impaired kidney function, should consult their healthcare practitioner before use — high-dose amino acid supplementation may place additional load on the kidneys. Keep bottle tightly closed. Store away from heat and moisture. Keep out of reach of children.