NEW
🧪 Digestive enzymes
Cost per serving
$1.65
other · 9 active deals
The best-value Spirulina right now is about $0.06 per dose — across 6 tracked products the median is $0.133/dose, so shopping on cost-per-dose can cut your cost several-fold. Every Spirulina 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 Spirulina catalog is at $0.06 per serving.
Every Spirulina deal above is ranked by real cost per dose with no paid placement — see our and .
NOW Supplements, Organic Spirulina 500 mg with Vitamins, Minerals and GLA… at $0.06 — the lowest cost-per-dose spirulina in our catalog. See the full ranking on the Best Spirulina page.
We're tracking 9 active Spirulina deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
Across 6 tracked Spirulina deals the median cost-per-dose is $0.133; the cheapest quartile comes in under $0.092 . 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
$1.65
Cost per serving
$1.53
30 servings · ~30-day supply
Cost per serving
$1.00
30 servings · ~30-day supply
Cost per serving
$0.10
Avg·−70%300 servings · ~300-day supply
Cost per serving
$0.06
Cheap·−83%100 servings · ~100-day supply
Cost per serving
$0.09
Cheap·−76%240 servings · ~240-day supply
Cost per serving
$0.24
Pricey90 servings · ~90-day supply
Cost per serving
$0.17
Avg·−41%180 servings · ~180-day supply
Cost per serving
$0.25
Pricey150 servings · ~150-day supply
Amazon.com · 🧪 Digestive enzymes
CPS
Price
$49.44
Amazon.com · 🧪 Digestive enzymes
CPS
Price
$45.98
Amazon.com · 🧪 Digestive enzymes
CPS
Price
$29.99
Amazon.com · 🌀 Spirulina
CPS
Price
$29.99
Amazon.com · 🌀 Spirulina
CPS
Price
$6.11
Amazon.com · 🌀 Spirulina
CPS
Price
$21.35
Amazon.com · 🌀 Spirulina
CPS
Price
$21.95
Amazon.com · 🌀 Spirulina
CPS
Price
$29.99
Amazon.com · 🌀 Spirulina
CPS
Price
$38.00
30 servings · ~30-day supply
