Best in 7 days
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Description
ZKTECO LH7500R- Cerradura derecha para hotel / MIFARE 13.56 Mhz / Aleación de ZincDescripcin La cerradura hotelera LH7500 es una gran solucin para los hoteles gracias a su tecnologa avanzada de tarjeta Mifare de 13. 56 Mhz. Cuenta con mortaja estndar europeo de 2 pestillos, su diseo elaborado en acero inoxidable ofrece una gran diseo minimalista y delgado. Funcin Diseo dividido. Crea tarjeta de eventos para descargar los registros. Mayor seguridad con doble cerrojo. Tecnologa avanzada de tarjeta MIFARE 13. 56 MHz. Software gratuito
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.6 ★★★★★
Based on 653 reviews
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Product Reviews
★★★★★ 5
Great
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
Great for those days when your feeling a little tired not super hyping just pleasant energy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 3
Worked well for a few days, then built up a tolerance
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
Guarana for me is one of those things that you should only take every once and a while. It gave me a nice surge of energy for about an hour or so after taking one, then after only a few mornings of taking one I noticed the effect completely wore off. So I stopped taking it for about a week. Then tried taking it again and it still did nothing. Maybe it's just my body, but now I need at least two to notice any effect. It's not that I even feel more alert now, it just makes me feel like I drank to much coffee. I will finish the bottle and then will not buy it again. Different supplements work differently for everyone though! Just because this didn't work for me longterm, that's not to say it won't work wonderfully for you. Trial and error is key with anything like this.
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Reviewed in the United States on October 29, 2013
★★★★★ 4
Great substitute for Adderall.
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
This is a great supplement to have around, especially because it's SO easy and economical compared to coffee. I would happily rate it 5 stars BUT I have to admit that the first few times I took it, the jitters it gave me were pretty extreme. It didn't bother me AT ALL, but I know that it would be WAY too strong for a lot of people.
However, if you're not a stranger to over-loading yourself on caffeine (or other stimulants) and you generally like its effects, this should be a great supplement for you. Very importantly, the jitters went away by the 4th day I took it and now it's hardly noticeable.
I started using it so I could easily lower my daily dose of Adderall (prescribed for ADD) and it did the job well.
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Reviewed in the United States on September 6, 2018
★★★★★ 5
works
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
I work night shift and these keep me energize without jitters. Also, I do not crash. They last a good 6 hours and I'm able to sleep when I get home.
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Reviewed in the United States on December 1, 2025
★★★★★ 1
They don't work
Item Package Quantity: 1, Size: 100 Count (Pack of 1)
Used to work, useless now. It seems they reformulated things. I used to wake up on this guarana, and the most recent batch not only does nothing, I can take two and need a nap within an hour.
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Reviewed in the United States on March 15, 2026
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