---
product_id: 82308454
title: "NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort"
brand: "naf"
price: "€ 71.96"
currency: EUR
in_stock: true
reviews_count: 13
category: "Naf"
url: https://www.desertcart.hr/products/82308454-naf-five-star-oestress-500g-hormonal-support-supplement-for-mares
store_origin: HR
region: Croatia
---

# Chasteberry for hormone balance 500g convenient trial size Magnesium to soothe muscles NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort

**Brand:** naf
**Price:** € 71.96
**Availability:** ✅ In Stock

## Summary

> 🌟 Ride the calm wave—because your mare deserves five-star serenity!

## Quick Answers

- **What is this?** NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort by naf
- **How much does it cost?** € 71.96 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/82308454-naf-five-star-oestress-500g-hormonal-support-supplement-for-mares)

## Best For

- naf enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Highly rated with rapid results—see noticeable calm and rideability improvements within a week.
- • **Smart Trial Size:** 500g pouch perfect for testing or intermittent use, ensuring no waste and maximum flexibility.
- • **Seasonal Mood Mastery:** Tailored for mares’ transitional phases, promoting focus and relaxed behaviour when it matters most.
- • **Hormonal Harmony Boost:** Clinically backed chasteberry eases mood swings and supports natural cycle balance.
- • **Calm Without Compromise:** Magnesium and herbal extracts reduce tension and nervous energy—no sedation, just serenity.

## Overview

NAF Five Star Oestress is a premium 500g powdered supplement designed specifically for mares to support hormonal balance and ease behavioural discomfort during oestrus. Featuring traditional chasteberry, magnesium, and calming herbs, it promotes relaxation and focus without sedation. Ideal for managing mood swings and muscle tension during seasonal transitions, this allergen-free, no-added-sugar formula is trusted by equestrians for fast, effective results.

## Description

Free delivery and returns on eligible orders. Buy NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort at desertcart UK.

Review: Really works - Really brilliant product! Recently my mare has started becoming very alert and on edge when she's in season and can be easily distracted, stressy and suffer from separation anxiety. Even when she isn't in season she can find it hard to concentrate. Since being on oestress this has all gone away, she is calm and relaxed, easy to ride, less argumentative and all her girthiness has gone as well. She is a joy to ride and be around, and is back to being the most laid back horse on the yard. This really took the edge off her and has helped make her much more rideable. Will continue to buy it! Kicked in super quickly as well, saw changes within a week.
Review: I can’t believe it works, BUT IT WORKS. - I was having terrible trouble with my mare, who after a summer of being delightful and no trouble, hacking out happily alone, etc, suddenly became so unmanageable and unpredictable that I didn’t feel safe riding her. We were at our wits’ end, and getting close to thinking about putting her down... Then a friend suggested Oestress. I couldn’t believe it was going to work, but thought it might be worth a try (I was feeling desperate and willing to try anything to give her a future again). God knows why - but it works! Her behaviour and demeanour have both improved significantly. I am never taking her off it! NB we did also do a lot of other things: checking her back, checking her tack, checking my spinal alignment with an osteopath, and a LOT of flatwork to improve our contact and connection. Oestress wasn’t the sole factor: as usual with horses, patience, consistency and constant effort are all always required. But, as part of a package approach in getting a tricky mare right - it’s definitely part of the ongoing solution for us.

## Features

- Supports Hormonal Balance in Mares - Helps reduce behavioural and physical discomfort associated with the oestrus cycle.
- With Chasteberry (Vitex Agnus Castus) - Traditionally used to regulate hormones and ease mood swings and tension.
- Includes Magnesium & Calming Herbal Extracts - Helps soothe muscle tension and nervous energy without sedating the horse.
- Ideal for Moody or Sensitive Mares - Encourages relaxation, focus, and comfort during transitional seasons.
- Convenient 500g Size for Short-Term Use or Trial - Perfect for initial introduction or for mares with intermittent seasonal needs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003ZJAAR6 |
| Age Range Description | All Life Stages |
| Allergen Information | Allergen-Free |
| Animal Food Diet Type | Veterinary Diet |
| Animal Food Nutrient Content Claim | No Added Sugar |
| Benefits | Supports hormonal balance, soothes mood swings, encourages calm focus, non-sedating |
| Best Sellers Rank | 7,918 in Pet Supplies ( See Top 100 in Pet Supplies ) 8 in Horse Calming Supplements |
| Brand Name | NAF |
| Breed Recommendation | All Breed Sizes |
| Container Type | Pouch or Bag |
| Customer Reviews | 4.3 4.3 out of 5 stars (145) |
| Flavour | Unflavoured |
| Global Trade Identification Number | 05032410018912 |
| Included Components | See Description |
| Item Form | Powder |
| Item Type Name | NAF Five Star Oestress |
| Item Weight | 0.5 Kilograms |
| Manufacturer | Greencoat Ltd |
| Manufacturer Part Number | O89.500 |
| Model Number | O89.500 |
| Number of Items | 1 |
| Occasion | Birthday |
| Product Warranty | Manufacturer Fault |
| Recommended Uses For Product | Managing mare-ish behaviour, supporting a healthy system during transitional seasons |
| Special Features | Targeted hormonal support for mares and unique ingredient combination |
| Special Ingredients | [INF] Inferred: Traditional herbs and natural antioxidants |
| Specific Uses For Product | Active |
| Target Species | Horse |
| Unit Count | 500.0 Grams |

## Product Details

- **Age range (description):** All Life Stages
- **Brand:** NAF
- **Flavour:** Unflavoured
- **Item form:** Powder
- **Specific uses for product:** Active

## Images

![NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort - Image 1](https://m.media-amazon.com/images/I/71c+JRRYbuL.jpg)
![NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort - Image 2](https://m.media-amazon.com/images/I/71D0-yCoLTL.jpg)
![NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort - Image 3](https://m.media-amazon.com/images/I/61HDYwR0tIL.jpg)
![NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort - Image 4](https://m.media-amazon.com/images/I/81OUHBnYTsL.jpg)
![NAF Five Star Oestress 500g – Hormonal Support Supplement for Mares – With Chasteberry, Magnesium & Soothing Herbs – Promotes Calm Behaviour & Seasonal Comfort - Image 5](https://m.media-amazon.com/images/I/71vRMZ+17JL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Really works
*by A***R on 8 September 2017*

Really brilliant product! Recently my mare has started becoming very alert and on edge when she's in season and can be easily distracted, stressy and suffer from separation anxiety. Even when she isn't in season she can find it hard to concentrate. Since being on oestress this has all gone away, she is calm and relaxed, easy to ride, less argumentative and all her girthiness has gone as well. She is a joy to ride and be around, and is back to being the most laid back horse on the yard. This really took the edge off her and has helped make her much more rideable. Will continue to buy it! Kicked in super quickly as well, saw changes within a week.

### ⭐⭐⭐⭐⭐ I can’t believe it works, BUT IT WORKS.
*by B***A on 17 April 2020*

I was having terrible trouble with my mare, who after a summer of being delightful and no trouble, hacking out happily alone, etc, suddenly became so unmanageable and unpredictable that I didn’t feel safe riding her. We were at our wits’ end, and getting close to thinking about putting her down... Then a friend suggested Oestress. I couldn’t believe it was going to work, but thought it might be worth a try (I was feeling desperate and willing to try anything to give her a future again). God knows why - but it works! Her behaviour and demeanour have both improved significantly. I am never taking her off it! NB we did also do a lot of other things: checking her back, checking her tack, checking my spinal alignment with an osteopath, and a LOT of flatwork to improve our contact and connection. Oestress wasn’t the sole factor: as usual with horses, patience, consistency and constant effort are all always required. But, as part of a package approach in getting a tricky mare right - it’s definitely part of the ongoing solution for us.

### ⭐⭐⭐⭐ Seems to be doing the trick with a very moody ...
*by M***Y on 9 August 2015*

Seems to be doing the trick with a very moody mare, definitely a lot calmer. Tends to fret when schooling... PC Camp next week so will have to see.

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-23*