---
product_id: 30278789
title: "Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz"
brand: "theodent"
price: "€ 259.88"
currency: EUR
in_stock: true
reviews_count: 13
category: "Theodent"
url: https://www.desertcart.hr/products/30278789-theodent-300-clinical-strength-toothpaste-with-rennou-diamond-mint-3
store_origin: HR
region: Croatia
---

# Highest Rennou® concentration for enamel repair Strongest, longest-lasting sensitivity relief FDA-cleared fluoride alternative for safe use Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz

**Brand:** theodent
**Price:** € 259.88
**Availability:** ✅ In Stock

## Summary

> 🦷 Elevate your smile game with the fluoride-free future of enamel care!

## Quick Answers

- **What is this?** Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz by theodent
- **How much does it cost?** € 259.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/30278789-theodent-300-clinical-strength-toothpaste-with-rennou-diamond-mint-3)

## Best For

- theodent enthusiasts

## Why This Product

- Trusted theodent brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fluoride-Free & Safe:** Gentle, non-toxic formula safe if accidentally swallowed—perfect for health-conscious professionals.
- • **Diamond Mint Freshness:** Premium flavor that elevates your daily oral care routine with a crisp, refreshing finish.
- • **Ultimate Sensitivity Defense:** Concentrated formula seals exposed dentin tubules, providing the strongest and longest-lasting relief from hot and cold tooth pain.
- • **FDA-Cleared Professional Grade:** Backed by FDA 510(k) clearance, the only Rennou® toothpaste trusted by dental professionals for clinical use.
- • **Clinical-Strength Rennou® Power:** Patented cacao-derived Rennou® delivers unmatched enamel remineralization, outperforming fluoride in peer-reviewed studies.

## Overview

Theodent 300 is a clinical-strength, fluoride-free toothpaste featuring the highest concentration of patented Rennou®, a cacao-derived compound proven to repair enamel faster than fluoride. It offers maximum sensitivity relief by sealing dentin tubules and is FDA-cleared for professional dental use. Safe if swallowed and infused with a refreshing diamond mint flavor, it’s designed for adults seeking advanced enamel protection and lasting comfort.

## Description

desertcart.com : Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz | Our most concentrated Rennou® formula. Sensitivity relief. Helps strengthen enamel. Fluoride-free, Diamond Mint, 3.4 oz : Health & Household

Review: Expensive, but worth it. It is essentially replacement of the professional dental cleaning. - I was using regular-grade Theodent toothpaste for some time, and was quite happy with it, but was reluctant to try this version - it is almost 10x price of the regular Theodent, and 20x the price of common supermarket-grade toothpaste. But I noticed that some of the reviews were saying that this toothpaste give you clean teeth like if you had dental cleaning, and since I had to skip/postpone my regular dental cleaning due to coronavirus pandemic I decided to try this toothpaste. Amazingly, but it works! Even after first few use I feel that "clean" feeling at the back of my tooth that you feel after dental cleaning - apparently this toothpaste can remove tooth tartar. Definitely worth the price, would recommend.
Review: Theodent 300 - Whitening Crystal Mint - pretty good, it's better mixed with another toothpaste

## Features

- OUR MOST CONCENTRATED RENNOU FORMULA: Theodent 300 is our most concentrated Rennou formula, for people who want the strongest Theodent we make. Rennou is Theodent's patented technology, powered by a compound found in cacao.
- SENSITIVITY RELIEF: Best for hypersensitivity and enamel erosion. In a seven-day randomized, double-blind in situ study, a Rennou-containing Theodent toothpaste occluded exposed dentinal tubules faster in the first days than a standard fluoride toothpaste and a NovaMin toothpaste (Amaechi et al., Clinical Oral Investigations, 2015).
- PROMOTES RAPID REMINERALIZATION: Rennou promotes rapid remineralization of enamel without the need for fluoride, and it helps strengthen enamel.
- CLINICALLY STUDIED: Rennou is clinically studied, and Theodent is the only toothpaste made with Rennou.
- DIAMOND MINT: Fluoride-free and SLS-free. Not harmful if accidentally swallowed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DDZOPVO |
| Active Ingredients | Rennou® |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #171,045 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #481 in Beauty Gift Sets #1,582 in Toothpaste |
| Brand | Theodent |
| Brand Name | Theodent |
| Capacity | 3.4 fluid ounces |
| Customer Reviews | 4.0 out of 5 stars 85 Reviews |
| Flavor | Diamond Mint |
| Item Dimensions | 8 x 2 x 2 inches |
| Item Form | Paste |
| Item Highlight | Our most concentrated Rennou® formula. Sensitivity relief. Helps strengthen enamel. Fluoride-free, Diamond Mint, 3.4 oz |
| Item Weight | 3.4 ounces |
| Manufacturer | Theodent |
| Manufacturer Part Number | 3013 |
| Material Feature | Natural |
| Material Features | Natural |
| Material Type Free | Animal by-product free, Fluoride Free, Gluten Free, Sodium Lauryl Sulfate Free |
| Model Number | 3013 |
| Number of Items | 1 |
| Package Quantity | 1 |
| Package Type Name | Tube |
| Product Benefits | Enamel Protection, Sensitivity Relief |
| Target Audience | Unisex-Adults |
| UPC | 853069003013 759894342634 749447560851 |
| Unit Count | 3.4 Ounce |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Theodent
- **Flavor:** Diamond Mint
- **Item Form:** Paste
- **Material Type Free:** Animal by-product free, Fluoride Free, Gluten Free, Sodium Lauryl Sulfate Free

## Images

![Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz - Image 1](https://m.media-amazon.com/images/I/718abUInicL.jpg)
![Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz - Image 2](https://m.media-amazon.com/images/I/61VhZBangiL.jpg)
![Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz - Image 3](https://m.media-amazon.com/images/I/610hu8rSZ9L.jpg)
![Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz - Image 4](https://m.media-amazon.com/images/I/816+BnC4NBL.jpg)
![Theodent 300 Clinical-Strength Toothpaste with Rennou, Diamond Mint, 3.4 oz - Image 5](https://m.media-amazon.com/images/I/81em-oPt6XL.jpg)

## Questions & Answers

**Q: Will it cure cavities?**
A: Theodent 300 can reverse early stage cavities. However, if a cavity is fully formed, having a dentist address it is the only sure way to repair.

**Q: You seriously paid 124 dollars for a tube of tothpaste!??**
A: Not just any toothpaste.  Theodent 300 has the best remineralization of any other toothpaste on the market.  You can learn more at www.theodent.com.

**Q: Does it have a guarantee?**
A: We absolutely stand behind all of our products. Because you are ordering through Amazon, their return policy would apply in this case. Ordering directly from Theodent.com has a 60 day return policy for full refund.

**Q: Is this for one tube?**
A: Correct

## Customer Reviews

### ⭐⭐⭐⭐⭐ Expensive, but worth it. It is essentially replacement of the professional dental cleaning.
*by T***Y on April 19, 2020*

I was using regular-grade Theodent toothpaste for some time, and was quite happy with it, but was reluctant to try this version - it is almost 10x price of the regular Theodent, and 20x the price of common supermarket-grade toothpaste. But I noticed that some of the reviews were saying that this toothpaste give you clean teeth like if you had dental cleaning, and since I had to skip/postpone my regular dental cleaning due to coronavirus pandemic I decided to try this toothpaste. Amazingly, but it works! Even after first few use I feel that "clean" feeling at the back of my tooth that you feel after dental cleaning - apparently this toothpaste can remove tooth tartar. Definitely worth the price, would recommend.

### ⭐⭐⭐⭐⭐ Theodent 300 - Whitening Crystal Mint
*by A***T on September 20, 2025*

pretty good, it's better mixed with another toothpaste

### ⭐ Can't open the container and they won't refund!!
*by S***Y on April 5, 2023*

SCAM! DON'T WASTE YOUR MONEY!!! Absolutely HORRIBLE twist-open design making it nearly impossible and often impossible to open!! I'm in my early 40s and have zero physical limitations whatsoever, hands or otherwise, but the way they designed the cap, it is extremely difficult, if not pretty impossible, for any of the 11 of us in my home to open this. Definitely NOT a good way to start or finish your day, fighting with a dang tube of toothpaste!! Not sure why the couple designs of nearly every other toothpaste out there wasn't sufficient for this company. I had really high hopes for this toothpaste and was even willing to spend $125 on a single tube!!!! Which would be worth it if it worked. But I cannot even OPEN the container myself! And what's worse, the customer service is TERRIBLE!!! We try to never post negative reviews but this one is well-deserved. We tried multiple times to get a refund before opening it, but there are zero refunds. This company does NOT stand behind their product. After this difficult and very costly lesson, we discovered Boka Natural Remineralizing toothpaste. It doesn't cost even 1 TENTH what this one does, and get this... You can actually open it and use their product.

## Frequently Bought Together

- Theodent 300 Fluoride-Free Natural Toothpaste, Clinical Strength for Remineralization and Sensitivity Reduction, Whitening Crystal Mint (3.4 Ounces, 96.4 Grams)
- Theodent Classic Fluoride-Free, Natural Toothpaste for Remineralization and Sensitivity Reduction, Whitening Spearmint (3.4 Ounces, 96.4 Grams)
- Theodent Fluoride-Free, Natural, Kids Toothpaste, Chocolate Chip Flavored (3.4 Ounces, 96.4 Grams)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/30278789-theodent-300-clinical-strength-toothpaste-with-rennou-diamond-mint-3](https://www.desertcart.hr/products/30278789-theodent-300-clinical-strength-toothpaste-with-rennou-diamond-mint-3)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-22*