Cracked Ad LibrarySupplements
Magnesium
The 15 longest-running live magnesium ads on Meta, one per brand. Tap any one to see it in Meta's Ad Library.
1,213 days
The longest still running: MagCombo: magnesium complex, live since May 30, 2023.
What the long-runners share
Each bar is the list. The tick is every live magnesium ad we hold from these brands, all 46 of them.
8 of 15
are video
53% here, 61% across all 46
Median length 33 seconds.
10 of 15
mention no discount
67% here, 63% across all 46
5 name a percent off.
9 of 15
send the click to a product page
60% here, 46% across all 46
How long each one has run
Each bar starts the day the ad went live and runs to Sep 24, 2026, the day we last read the library.
- 1 MagCombo: magnesium complex 1,213 days A 6-second video that names no discount.
- 2 Nutricost Performance 356 days An image that opens on a number, names 20% off and sends the click to its own landing page.
- 3 ATP Lab 348 days An image that names 20% off.
- 4 TrueSupps 344 days A 12-second video that opens on a question, names no discount and sends the click to a product page.
- 5 Vital Nutrients 241 days An image that names no discount and sends the click to a product page.
- 6 Oh My Chewy 205 days A 105-second video that names 55% off and sends the click to a product page.
- 7 SPNutrition 202 days An image that leans on a guarantee and sends the click to its own landing page.
- 8 GoBiotix 190 days A 54-second video that names no discount and sends the click to its own landing page.
- 9 We Heart Nutrition 186 days An image that opens on a question, names no discount and sends the click to a product page.
- 10 Nature's Bounty 176 days A 10-second video that names no discount and sends the click to a product page.
- 11 SILA 162 days A 33-second video that names no discount and sends the click to a product page.
- 12 Experience True Nutra 111 days A 89-second video that opens on a question, names no discount and sends the click to a product page.
- 13 Organics Ocean 106 days An image that names 60% off and sends the click to its own landing page.
- 14 Vitabiotics 85 days An image that names 33% off and sends the click to a product page.
- 15 Flamingo 55 days A 32-second video that names no discount and sends the click to a product page.
Ask Cracked
Ask about these ads
Ask anything about magnesium ads: how they open, what they offer, what yours could try next. Answers come from the ads in our copy of the library, each linked so you can check it. A few questions free, no sign-up.
Ask your own question44 of 44
live magnesium ads we checked reached a working page when we opened their links.
Where does your ad send people?
Paste your store. We read it live, open the links on your Meta ads and rank your longest-running ad against your category. Free, no sign-up.
From Meta's public Ad Library (US), ads live on Sep 24, 2026. We show no one's ads here, only facts about them and a link to each one. Marketplaces, apps and pharma are left out, and so are ads run from someone else's page and sellers outside the category. A store counts when its ad sells the category's product. Days running: how long a brand has kept paying to run an ad. A brand that wants its entry taken down can email hello@cracked.app.