NEW
😴 Melatonin
Melatonin PR 3 mg Prolonged-Release 60 Tablets by Douglas…
Cost per serving
$0.45
Pricey60 servings · ~60-day supply
$27.00Price from Tradecart
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See the offer Beta · Amazon US · expanding
Stop overpaying for supplements.
See what each supplement actually costs per dose — not just the sticker price. We compare forms, doses, and third-party lab testing so you stop overpaying.
87+ brands · 147+ nutrients tracked · ranked by cost per dose
Prices checked Aug 25, 2026
Hottest right now
Carlyle L Methylfolate 15mg
cost per serving$0.25
you pay$29.99
🌿 Vitamin B9 · 120 servings · ranked by what a dose actually costs
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How it works
Three steps from "is this deal good?" to "saved $27 on my magnesium stack."
- 01
Someone spots it
Paste any product URL — we auto-extract title, image, and price. You add dose, form, and nutrients.
- 02
Community votes hot or cold
Temperature score (−300° to +500°) decides what trends. No SEO spam, no merchant-paid promotion.
Why we exist
Sticker price hides the real cost. Cost-per-dose surfaces it.
We compute what you actually pay per serving, per day — normalized to the daily intake the NIH publishes — across Amazon and partner retailers, with the form, dose, and third-party lab certifications on the same row. Editorial rankings follow a published methodology; community signals add a second data point. No paid placement.
