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Natural supplement ingredients - herbs, roots, and botanicals for evidence-based health

Get an evidence-backed supplement stack for less. In seconds.

Find the most efficacious supplement stack for your goals. We show price per mg of active ingredient and link every claim to research sources.

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Evidence you can verify

Every pick cites clinical research in plain English. See our methodology, evidence grades, and dosing ranges on each page.

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Prices are normalized for the amount of active ingredient. Value you can directly compare.

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We earn via affiliate links when you buy through us—never from paid placements. Affiliate payouts never affect default rankings. If two options tie, we show both.

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Clear safety notes and interactions, with sources, so you can decide confidently (and loop in your clinician if needed).

Our Mission

Your evidence-backed supplement stack for less. In seconds.

Science, made usable

No hype. Just evidence‑backed picks with dosing guidance you can act on in seconds.

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Find the lowest verified total price for what meets your criteria—no junk fees, no guesswork.

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Popular Supplements

See how different brands stack up on price and quality

Life Extension, Two-Per-Day Multivitamin by Life Extension - price comparison and reviews
Life Extension

Life Extension, Two-Per-Day Multivitamin

120 Capsules
Non-GMO, Gluten-Free
from $0.138 per tablet
$16.60 per bottle
Amazon
Vitamin D3 by California Gold Nutrition - price comparison and reviews
California Gold Nutrition

Vitamin D3

90 Fish Gelatin Softgels (5000 IU / 125 mcg per softgel)
Gluten Free, Non-GMO
from $0.000012 per IU
$5.31 per bottle
Amazon
Omega-3 Premium Fish Oil by California Gold Nutrition - price comparison and reviews
California Gold Nutrition

Omega-3 Premium Fish Oil

100 Fish Gelatin Softgels (1100 mg per softgel)
Gluten-free, Non-GMO, Soy-free
from $0.000244 per mg EPA
$12.20 per bottle
Amazon
Sport, Creatine Monohydrate by California Gold Nutrition - price comparison and reviews
California Gold Nutrition

Sport, Creatine Monohydrate

1 lb (454 g)
Flavor: Unflavored
Micronized
Gluten-free, Non-GMOs, Soy-free, Vegan Ⓥ
from $0.037 per g
$17.01 per bottle
Amazon
High Absorption Magnesium by Doctor's Best - price comparison and reviews
Doctor's Best

High Absorption Magnesium

240 Tablets (100 mg per tablet)
100% Chelated
Gluten-free, Non-GMOs, Soy-free, Vegan Ⓥ
from $0.00076 per mg
$18.19 per bottle
Amazon
Gold C® by California Gold Nutrition - price comparison and reviews
California Gold Nutrition

Gold C®

60 Veggie Capsules (1000 mg)
Flavor: Unflavored
USP Grade
Gluten-free, Non-GMOs, Soy-free
from $0.000086 per mg
$5.16 per bottle
Amazon

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