Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras

Adafruit PN532 NFC/RFID Controller Shield for Arduino + Extras

Marsoni

M251S

$47.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit PN532 NFC/RFID Controller Shield for Arduino + ExtrasThe Adafruit NFC RFID PN532 Shield is a powerful tool for 13. 56MHz NFC and RFID applications, designed to work with a wide range of tags and devices. Built around the popular PN532 chipsetthe same one embedded in many phones and NFC devicesthis shield can read and write to tags and cards, communicate with phones for tasks like payment processing, and even act as an NFC tag itself. While the current Arduino library only supports reading and writing

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I have dry mouth which makes me prone to bad breath. I’ve experimented with chewing these before bed (after brushing) or in the morning (also after brushing). I tested my breath using a cloth mask and also did “blank” tests on days when I did not use the product. Chewing before bed greatly reduced morning breath but left me with some sour mouth, which makes me worry a bit about tooth decay. I’ve switched to taking in the morning and have been happy with the results.

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Reviewed in the United States on October 6, 2024

Verified Purchase

Graciela Saltos

Omaha, US

★★★★★ 5

My experience

Loved this product. It worked from day 1. Tastes good. Highly recommended

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Reviewed in the United States on March 18, 2026

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Sarah R.

West Palm Beach, US

★★★★★ 3

Lips & mouth sore?

Mouth and lips became sensitive and sore after using this product 2x per day for 3 days. Maybe I’m allergic to one of the ingredients? Don’t know. It’s day 3 of soreness and waiting for it to subside.

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Reviewed in the United States on December 1, 2025

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MoK

Port Orchard, US

★★★★★ 1

Doesn’t work

I’ve tried to for three weeks and I’ve tested and it does t work. I can taste this mint in my mouth and it still smells funky. I’ve had customers and employees tell me my breath smells. I don’t drink coffeee and I brush my teeth for 10mins straight every morning and night and I also use mouth wash and I use three tabs throughout the day and it does nothing for me.

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Reviewed in the United States on August 31, 2023

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Diana

Whiting, US

★★★★★ 5

Recommended by my dental hygienist

These probiotics help maintain a healthy balance of bacteria in your mouth, which already improved my gum health and reduced bad breath. This product was recommended by my dental hygienist.

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Reviewed in the United States on July 19, 2025