---
product_id: 641675681
title: "- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels"
brand: "naturalis"
price: "$104.90"
currency: USD
in_stock: true
reviews_count: 9
category: "Naturalis"
url: https://www.desertcart.us/products/641675681-naturalis-ultra-rtg-omega-3-fish-oil-1800mg-from-wild
store_origin: US
region: United States of America
---

# Sustainably sourced Wild NZ Tuna 1800mg pure rTG Omega-3 Full spectrum EPA, DHA & DPA blend - Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels

**Brand:** naturalis
**Price:** $104.90
**Availability:** ✅ In Stock

## Summary

> 🐠 Elevate your wellness game with the cleanest, most absorbable Omega-3 on the planet!

## Quick Answers

- **What is this?** - Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels by naturalis
- **How much does it cost?** $104.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/641675681-naturalis-ultra-rtg-omega-3-fish-oil-1800mg-from-wild)

## Best For

- naturalis enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Potent 1800mg rTG Omega-3:** Experience 3.5x higher absorption for peak cellular health.
- • **Full Spectrum Omega-3 Powerhouse:** EPA, DHA & rare DPA combined for comprehensive cardiovascular and brain support.
- • **Clean, Pure & Pescatarian Friendly:** Non-GMO, gluten-free, hexane-free, and third-party tested for heavy metals.
- • **Sustainably Wild-Caught from New Zealand:** Ethically sourced with MSC & IFOS 5-star certification for guilt-free wellness.
- • **Antioxidant Boost with Astaxanthin & Vitamin E:** Nature’s strongest antioxidants protect freshness and promote healthy aging.

## Overview

Naturalis Ultimate rTG Omega 3 Fish Oil delivers a potent 1800mg dose of re-formed triglyceride Omega-3s (EPA, DHA & DPA) sourced exclusively from wild New Zealand tuna. Certified sustainable and IFOS 5-star rated, it combines superior absorption with antioxidant protection from astaxanthin and vitamin E. Manufactured in a cGMP facility, this non-GMO, gluten-free supplement supports heart, brain, and healthy aging for the discerning professional.

## Description

Product description What does “rTG” fish oil mean? “rTG” stands for re-esterified triglyceride. This is a highly refined form of fish oil where omega-3 fatty acids are converted back into their natural triglyceride structure after purification. Known for better absorption and higher bioavailability.* What does “rTG” fish oil mean? “rTG” stands for re-esterified triglyceride. This is a highly refined form of fish oil where omega-3 fatty acids are converted back into their natural triglyceride structure after purification. Known for better absorption and higher bioavailability.* Why is your fish oil dark in color? Naturalis rTG fish oil has a dark red color because it contains astaxanthin. The inclusion of astaxanthin may also give the oil a mild ‘seaweed-like’ scent, as it is derived from natural microalgae. Why is your fish oil dark in color? Naturalis rTG fish oil has a dark red color because it contains astaxanthin. The inclusion of astaxanthin may also give the oil a mild ‘seaweed-like’ scent, as it is derived from natural microalgae. Is your fish oil third-party tested? Yes, all Naturalis fish oil products undergo third-party testing for purity, stability, and safety. This rTG fish oil is certified by IFOS, ensuring it meets strict global quality standards. Is your fish oil third-party tested? Yes, all Naturalis fish oil products undergo third-party testing for purity, stability, and safety. This rTG fish oil is certified by IFOS, ensuring it meets strict global quality standards. What is the purpose of adding astaxanthin and vitamin E to your fish oil? Astaxanthin and vitamin E are added as antioxidants. They mainly aim to help the fish oil preserve freshness and potency. They also provide some extra benefits with their antioxidant nature. What is the purpose of adding astaxanthin and vitamin E to your fish oil? Astaxanthin and vitamin E are added as antioxidants. They mainly aim to help the fish oil preserve freshness and potency. They also provide some extra benefits with their antioxidant nature. Is the astaxanthin in your fish oil natural or synthetic? The astaxanthin used is 100% naturally sourced from microalgae. It is cultivated in a closed tubular system, which prevents contamination from open seawater. Is the astaxanthin in your fish oil natural or synthetic? The astaxanthin used is 100% naturally sourced from microalgae. It is cultivated in a closed tubular system, which prevents contamination from open seawater. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Review: High Quality rTG - These are one of my favorite rTG supplements. I only take high quality rTG Omega-3 and this is one of them. Another is the Free Fatty Acid (FFA) crystallized form from another brand that I like. These have no after-taste and tolerated well in the stomach, atleast for me.
Review: Really great - This is a rare find, had I known this brand existed I would have bought this supplement years ago. This contain all the antioxidants you want to take on a daily basis, their astaxanthin seems to be derived from algae which is great if you have a crustaceans allergy. Their brand is transparent and you can look up all the ingredients and facts online for more information.

## Features

- WHY OMEGA-3 + ASTAXANTHIN: Naturalis combines high-potency, full spectrum re-formed Omega-3 (EPA, DHA & DPA) and astaxanthin for cardiovascular health, healthy aging, and, antioxidant support.*
- HIGH ABSORPTION rTG OMEGA-3 FORM: re-formed triglyceride is the most absorbable form of omega-3, raising omega-3 levels in cells 3.5x higher than standard triglyceride*
- FRESHER FOR LONGER: added with nature's strongest anti-oxidant Astaxanthin and Vitamin E to ensure extra protection against oxidation.
- SUSTAINABLY SOURCED: Single-sourced from only Wild New Zealand Tuna. Our re-formed Omega-3 fish oil 1800mg is certified sustainable and traceable by the Marine Stewardship Council (MSC) and IFOS 5-star rated.
- QUALITY & SAFETY: Naturalis Omega 3 Fish oil softgels are pescatarian friendly, non-GMO, hexane, and gluten-free. Manufactured in the Calfornia, USA in a cGMP-compliant facility and third-party tested for heavy metals.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D464H1GW |
| Age Range Description | Adult |
| Best Sellers Rank | #34,434 in Health & Household ( See Top 100 in Health & Household ) #82 in Fish Oil Nutritional Supplements |
| Brand | Naturalis |
| Brand Name | Naturalis |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 144 Reviews |
| Diet Type | Kosher |
| Dosage Form | Softgel |
| Dose Release Method | Immediate Release |
| Flavor | Unflavored |
| Item Form | Softgel |
| Item Weight | 8 ounces |
| Manufacturer | Naturalis |
| Manufacturer Part Number | 850027547688 |
| Material Features | Fragrance Free, Genetically Modified Organism (GMO) Free, Gluten Free, Sustainably Sourced |
| Model Number | FO18018 |
| Number of Items | 1 |
| Primary Supplement Type | omega 3 |
| Product Benefits | Blood Pressure Management, Brain Health Support, Cholesterol Management, Heart Health Support |
| Special Ingredients | Astaxanthin, DPA, Docosahexaenoic acid, Eicosapentaenoic acid, rTG Fish Oil |
| UPC | 850027547688 |
| Unit Count | 180 Count |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Naturalis
- **Diet Type:** Kosher
- **Flavor:** Unflavored
- **Item Form:** Softgel
- **Item Weight:** 0.5 Pounds
- **Primary Supplement Type:** omega 3
- **Product Benefits:** Blood Pressure Management, Brain Health Support, Cholesterol Management, Heart Health Support
- **Special Ingredients:** Astaxanthin, DPA, Docosahexaenoic acid, Eicosapentaenoic acid, rTG Fish Oil
- **Unit Count:** 180 Count

## Images

![- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels - Image 1](https://m.media-amazon.com/images/I/61qPInxwgEL.jpg)
![- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels - Image 2](https://m.media-amazon.com/images/I/81SxyCWWbEL.jpg)
![- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels - Image 3](https://m.media-amazon.com/images/I/71VXmrkktzL.jpg)
![- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels - Image 4](https://m.media-amazon.com/images/I/71WYTz6z+oL.jpg)
![- Naturalis Ultra rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna | IFOS Certified & Sustainably Sourced | Full Spectrum Omega3s EPA, DHA & DPA | 180 Softgels - Image 5](https://m.media-amazon.com/images/I/81f4h8yrIwL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What does “rTG” fish oil mean?**
A: “rTG” stands for re-esterified triglyceride. This is a highly refined form of fish oil where omega-3 fatty acids are converted back into their natural triglyceride structure after purification. Known for better absorption and higher bioavailability.*

**Q: Why is your fish oil dark in color?**
A: Naturalis rTG fish oil has a dark red color because it contains astaxanthin. The inclusion of astaxanthin may also give the oil a mild ‘seaweed-like’ scent, as it is derived from natural microalgae.

**Q: Is your fish oil third-party tested?**
A: Yes, all Naturalis fish oil products undergo third-party testing for purity, stability, and safety. This rTG fish oil is certified by IFOS, ensuring it meets strict global quality standards.

**Q: What is the purpose of adding astaxanthin and vitamin E to your fish oil?**
A: Astaxanthin and vitamin E are added as antioxidants. They mainly aim to help the fish oil preserve freshness and potency. They also provide some extra benefits with their antioxidant nature.

**Q: Is the astaxanthin in your fish oil natural or synthetic?**
A: The astaxanthin used is 100% naturally sourced from microalgae. It is cultivated in a closed tubular system, which prevents contamination from open seawater.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High Quality rTG
*by M***A on December 31, 2025*

These are one of my favorite rTG supplements. I only take high quality rTG Omega-3 and this is one of them. Another is the Free Fatty Acid (FFA) crystallized form from another brand that I like. These have no after-taste and tolerated well in the stomach, atleast for me.

### ⭐⭐⭐⭐⭐ Really great
*by C***R on December 28, 2025*

This is a rare find, had I known this brand existed I would have bought this supplement years ago. This contain all the antioxidants you want to take on a daily basis, their astaxanthin seems to be derived from algae which is great if you have a crustaceans allergy. Their brand is transparent and you can look up all the ingredients and facts online for more information.

### ⭐⭐⭐⭐⭐ Easy to swallow without fishy smell
*by T***T on December 29, 2025*

No weird smell or taste. Easy to swallow with no fake colors. Great price compared to in store. Superior quality with noticeable health benefits.

## Frequently Bought Together

- Naturalis Ultimate rTG Omega 3 Fish Oil 1800mg from Wild New Zealand Tuna - Full Spectrum Omega3s EPA, DHA & DPA - Sustainably Sourced, Non-GMO, Gluten Free - 180 Softgels
- NatureWise Vitamin D3 5000iu (125 mcg) 1 Year Supply for Immune Support, Healthy Muscle Function, and Bone Health - Non-GMO, Gluten Free in Organic Extra Virgin Olive Oil, (Mini Softgel), 360 Count

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*