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Best deal: $0.05 per ounce (98.8% below the median) — Source Naturals L-Lysine Free Form Powder -Amino Acid Supplement Su...

Price range: $0.05 – $15.95 per ounce across 48 offers. Median sits at $4.02.

Top brands showing: Vetoquinol Viralys, Nutricost, Just Try.

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Nutricost L-Lysine Powder 1KG (2.2lbs) - Pure L-Lysine, Non-GMO, Gluten Free

Nutricost L-Lysine Powder 1KG (2.2lbs) - Pure L-Lysine, Non-GMO, Gluten Free

(as of 04/14/2026 08:47 EST)

$0.62 / ounce
Total: $21.95
Prime: ❌
Best Naturals Lysine Powder, 1 Pound - 100% Pure (1 LB (Pack of 1))

Best Naturals Lysine Powder, 1 Pound - 100% Pure (1 LB (Pack of 1))

(as of 04/14/2026 08:47 EST)

$0.87 / ounce
Total: $13.99
Prime: ❌
Nutricost L-Lysine Powder 500 Grams - Pure L-Lysine, Non-GMO, Gluten Free

Nutricost L-Lysine Powder 500 Grams - Pure L-Lysine, Non-GMO, Gluten Free

(as of 04/14/2026 08:47 EST)

$0.90 / ounce
Total: $15.95
Prime: ❌
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