NEW
🔗 L-Lysine
Cost per serving
$0.27
amino · 10 active deals
The best-value L-Lysine right now is about $0.05 per dose — across 10 tracked products the median is $0.088/dose, so shopping on cost-per-dose can cut your cost several-fold. Every L-Lysine deal here is ranked by cost per dose— what you actually pay per serving, not the sticker price — because forms and absorption differ, so the cheapest bottle isn’t always the cheapest dose.
Right now the best value across our full L-Lysine catalog is at $0.05 per serving.
Every L-Lysine deal above is ranked by real cost per dose with no paid placement — see our and .
1 of 6 tracked L-Lysine brands here are flagged as carrying independent third-party testing — a voluntary check of a product's identity, potency and contaminants by an outside lab. It's a quality signal, not a value or efficacy claim. Confirm any brand's current status on the official registries:
Testing status is self-reported by the brand or drawn from public certification and may change — always verify on the official registry before purchase.
NOW Supplements, L-Lysine (L-Lysine Hydrochloride) 500 mg, Amino Acid, 250… at $0.05 — the lowest cost-per-dose l-lysine in our catalog. See the full ranking on the Best L-Lysine page.
We're tracking 10 active L-Lysine deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
Across 10 tracked L-Lysine deals the median cost-per-dose is $0.088; the cheapest quartile comes in under $0.070 . Anything below the median is a solid deal for the same molecule.
Deals are submitted by the community and ranked by net votes (hot minus cold) plus cost-per-dose normalised across container sizes. We take no affiliate kickbacks for ordering; sponsored slots, when present, are clearly badged.
We link primary sources and paraphrase their findings — never copy their text, tables, or images. Cost-per-dose figures are our own first-party catalog data.
Cost per serving
$0.27
Cost per serving
$0.09
100 servings · ~100-day supply
Cost per serving
$0.07
Cheap·−75%250 servings · ~250-day supply
Cost per serving
$0.07
Cheap·−75%100 servings · ~100-day supply
Cost per serving
$0.11
PriceyCost per serving
$0.07
Avg·−72%180 servings · ~180-day supply
Cost per serving
$0.09
250 servings · ~250-day supply
Cost per serving
$0.05
Cheap·−81%250 servings · ~250-day supply
Cost per serving
$0.10
250 servings · ~250-day supply
Cost per serving
$0.09
Avg·−53%300 servings · ~300-day supply
Amazon.com · 🔗 L-Lysine
CPS
Price
$24.00
Life Extension · Amazon.com · 🦴 Calcium
CPS
Price
$9.00
NOW Foods · Amazon.com · 🔗 L-Lysine
CPS
Price
$17.30
NOW Foods · Amazon.com · 🔗 L-Lysine
CPS
Price
$6.92
Nature Made · Amazon.com · 🔗 L-Lysine
CPS
Price
$6.59
Best Naturals · Amazon.com · 🔗 L-Lysine
CPS
Price
$12.99
Solgar · Amazon.com · ✨ Collagen Peptides
CPS
Price
$23.01
NOW Foods · Amazon.com · 🔗 L-Lysine
CPS
Price
$13.46
Country Life · Amazon.com · ✨ Collagen Peptides
CPS
Price
$25.99
NOW Foods · Amazon.com · 🔗 L-Lysine
CPS
Price
$25.72
90 servings · ~90-day supply
60 servings · ~60-day supply
