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Spirulina
other · 20 active deals
How much does Spirulina cost?
The best-value Spirulina right now is about $0.03 per dose — across the 16 we can price per dose the median is $0.093/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.
Prices checked · live from the Amazon US catalog.
Right now the best value across our full Spirulina catalog is at $0.03 per gram.
Median $0.093/servingCheapest quartile under $0.057across 16 tracked Spirulina deals
Compare:
Nutricost Organic Spirulina + Chlorella (3,000mg) 180 Tablets…
NutricostAmazon.com
$0.10/serving
$17.950°
ENERGYBITS Organic Spirulina Tablets (1000 Algae Tablets)…
ENERGYBITSAmazon.com
$0.13/serving
$130.000°
Alaya Naturals Pure Spirulina Capsules – Hawaiian-Grown Blue…
Alaya NaturalsAmazon.com
$0.24/serving
$21.950°
NOW Foods Supplements, Certified Organic, Spirulina 1000 mg…
NOW FoodsAmazon.com
$0.11/serving
$13.460°
Earthrise PHYCONA - Skin Hydration Tablets with Spirulina Blue
EarthriseAmazon.com
$0.25/serving
$38.000°
On Target Living Organic Spirulina Chlorella | Supergreens…
On Target LivingAmazon.com
$0.05/serving
$54.990°
Every Spirulina deal above is ranked by real cost per dose with no paid placement — see our and .
Independent testing
Independent third-party testing is 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.
Spirulina deals — FAQ
- How much does Spirulina cost?
The cheapest spirulina we track works out to $0.03 per gram. That is real from live Amazon US prices, not the sticker price. The full ranking is on the Best Spirulina page.
- What is the best-value Spirulina per dose?
ENERGYBITS Organic Spirulina (1000 Algae Tablets) Natural Superfood… at $0.03 per gram — the lowest cost-per-dose spirulina in our catalog. See the full ranking on the Best Spirulina page.
- How many Spirulina deals are live right now?
We're tracking 20 active Spirulina deals across Amazon US and partner retailers, ranked by community votes and cost-per-dose — not paid placement.
- How does VitaminDB rank Spirulina deals?
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.
Related supplements
References & sources
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.