Best in 7 days
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Description
50 COSAS QUE HAY QUE SABER SOBRE MATEMATQuin invent el nmero cero? Por qu hay 60 segundos en un minuto? Cmo es de grande el infinito? Dnde se cruzan las lneas paralelas? Es cierto que el aleteo de una mariposa puede causar una tormenta en la otra punta del mundo? En 50 cosas que hay que saber sobre matemticas, el profesor Tony Crilly explica 50 conceptos matemticos antiguos, modernos, cotidianos y esotricos que nos permitirn entender y dar forma al mundo que nos rodea.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 245 reviews
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Product Reviews
★★★★★ 5
Sublingual works well for melatonin!
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
Sublingual seems to be the way to go with melatonin. It works well for me. It’s great this company offers a variety of doses. I was doing 10mg but I learned it might not good to stay on that high a dose for an extended period of time. So I switched to 5mg and it still works well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2025
★★★★★ 5
Use for sleeping
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
Great little pill for sleeping. No after taste, place under tongue and quickly dissolves.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 27, 2024
★★★★★ 5
A peaceful nights sleep always!!!
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
Sleep peacefully, undisturbed, wake up refreshed. None habit forming.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 4
Works
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
Been taking these for years.. They work although sometimes I think they flare up my heartburn
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Reviewed in the United States on October 25, 2025
★★★★★ 5
The best Melatonin - it's part of my nightly routine.
Size: 60 Count (Pack of 1), Style: Melatonin 5mg
The best Melatonin - it's part of my nightly routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
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