---
product_id: 48838525
title: "One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets"
brand: "optibac probiotics"
price: "HK$543"
currency: HKD
in_stock: true
reviews_count: 13
category: "Optibac Probiotics"
url: https://www.desertcart.hk/products/48838525-one-week-flat-vegan-digestive-probiotic-supplement-suitable-for-bloating
store_origin: HK
region: Hong Kong
---

# 0.3g FOS prebiotic fiber Gluten & dairy free 5 billion live cultures One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets

**Brand:** optibac probiotics
**Price:** HK$543
**Availability:** ✅ In Stock

## Summary

> 🦠 One Week to a Happier Gut – Because Your Microbiome Deserves the Best!

## Quick Answers

- **What is this?** One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets by optibac probiotics
- **How much does it cost?** HK$543 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/48838525-one-week-flat-vegan-digestive-probiotic-supplement-suitable-for-bloating)

## Best For

- optibac probiotics enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Gut Reset:** Feel the difference in just 7 days with a potent 5 billion live cultures per sachet.
- • **Travel-Ready Sachets:** Compact, single-serve packets designed for on-the-go digestive support.
- • **Trusted & Top-Ranked:** Join thousands who rate it 4.1 stars and trust OptiBac for gut health excellence.
- • **Clean & Clear Formula:** Gluten-free, dairy-free, and vegan-friendly to suit your clean lifestyle.
- • **Prebiotic Power Boost:** 0.3g FOS fibers fuel your good bacteria for enhanced digestive harmony.

## Overview

OptiBac Live Cultures 'One Week Flat' delivers a high-quality, short-term probiotic boost with 5 billion live cultures and 0.3g of FOS prebiotic fiber per sachet. This gluten-free, dairy-free, and vegan-friendly supplement supports digestive health and helps reduce bloating, making it ideal for busy professionals seeking quick, effective gut balance in a convenient sachet form.

## Description

Shop Bestsellers Visit the store Shop Bestsellers Visit the store

Review: Probiotics - Great product , benefits felt within 7 day course
Review: Brilliant product which works - Brilliant product. I have gallstones so I deal with a lot of bloating, after a massive weight loss last year my stomach is one area of my body I’m most self conscious about and I was struggling with the area of my body I’m most self conscious about sticking out so I thought I’d try these. As I’m only on day 2 it’s still early days but i definitely feel less bloated after meals I’ve noticed, will see how I get on with the rest of the week but now considering taking these daily.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Optibac Probiotics |
| Flavour | Natural |
| Item form | Sachet |
| Item weight | 0.08 Kilograms |
| Primary supplement type | probiotic |
| Unit count | 28.0 count |

## Product Details

- **Brand:** Optibac Probiotics
- **Diet type:** Vegan
- **Flavour:** Natural
- **Item dimensions L x W x H:** 7 x 6.5 x 10 centimetres
- **Item form:** Sachet
- **Item weight:** 0.08 Kilograms
- **Primary supplement type:** probiotic
- **Product benefits:** Digestive Health Support
- **Special ingredients:** Probiotic
- **Unit count:** 28.0 count

## Images

![One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets - Image 1](https://m.media-amazon.com/images/I/71OPIVdBXJL.jpg)
![One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets - Image 2](https://m.media-amazon.com/images/I/71uq7+GbsXL.jpg)
![One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets - Image 3](https://m.media-amazon.com/images/I/71WrkJyJgrL.jpg)
![One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets - Image 4](https://m.media-amazon.com/images/I/71ElpxRUghL.jpg)
![One Week Flat - Vegan Digestive Probiotic Supplement - Suitable for Bloating as Gluten Free - Most Trusted & Recommended Brand - 4 Week Supply, 28 Sachets - Image 5](https://m.media-amazon.com/images/I/81Msg9CCs2L.jpg)

## Available Options

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

## Questions & Answers

**Q: How often should I take Optibac One Week Flat live cultures?**
A: Initially it’s best to take daily for 1 week to complement your natural gut bacteria. After that, many choose to repeat this each month. Others prefer to take 1 sachet every day on an ongoing basis. Both options are fine! See what suits you best.

**Q: If I suffer bloating from dairy and gluten, can I take Optibac One Week Flat?**
A: One Week Flat is dairy & gluten-free, and a perfect supplement for those with food-related bloating or lactose intolerance. A high-quality supplement containing 4 highly-researched strains and natural FOS fibres, which complement the gut microbiome.

**Q: Does Optibac One Week Flat taste nice?**
A: Yes! It is carefully formulated to have a slightly sweet, neutral flavour, which most people find pleasant. However, be reassured that it contains no added flavourings, sugar, or sweeteners – the mild sweet taste comes from the natural FOS fibres.

**Q: Can I take Optibac One Week Flat on a calorie-controlled diet?**
A: With only 7.72 calories per sachet, and 0g of fat, it’s easy to include Optibac One Week Flat in your calorie-controlled diet. The carbohydrate content is mostly from natural FOS fibres which are indigestible with barely any calorific content.

**Q: Is Optibac One Week Flat suitable for both men and women?**
A: Definitely! Friendly gut bacteria are not gender-specific. Optibac One Week Flat live cultures can be taken by everyone over the age of 4 years: women, men, trans and non-binary people too.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Probiotics
*by C***E on 27 May 2026*

Great product , benefits felt within 7 day course

### ⭐⭐⭐⭐⭐ Brilliant product which works
*by N***N on 15 February 2026*

Brilliant product. I have gallstones so I deal with a lot of bloating, after a massive weight loss last year my stomach is one area of my body I’m most self conscious about and I was struggling with the area of my body I’m most self conscious about sticking out so I thought I’d try these. As I’m only on day 2 it’s still early days but i definitely feel less bloated after meals I’ve noticed, will see how I get on with the rest of the week but now considering taking these daily.

### ⭐⭐⭐⭐⭐ Brought down the bloating massively. Impressed!
*by S***O on 22 August 2025*

Honestly amazing. My stomach was bloated for quite some time. I had on and off heartburn. Just generally felt rubbish. I bought these because of some of the reviews. They were amazing. I think I had gas stick in my stomach as my tummy was bloated up 2 clothes sizes. By the end of the week, the difference was amazing. I do still have the on and off heartburn but my stomach issue has been sorted. Will take this every 6 weeks to keep on top of everything or just keep a box on stand by. There is practically no flavour at all, a bit like potato starch. Drank it to problem. It doesn't always dissolve but it does work, so not fussed about that really. 5 stars for sure. I lost 2 kgs but unsure if it was to do with stored gas etc but was pleased anyway. Tgat was 6 weeks ago and gas stayed off. My friend tried it for meno belly and was also pleasantly surprised after telling me it was probably rubbish. Shebus very happy. I think the stomach needs a prebiotic/prebiotic from time to time to align it. If in doubt, definitely give it a go.

## Frequently Bought Together

- Optibac Probiotics One Week Flat - Vegan Digestive Probiotic Supplement Suitable for Bloating with 5 Billion Bacterial Cultures - 4 Week Supply - 28 Powder sachets
- Optibac Probiotics Every Day - Digestive Probiotic Supplement with 5 Billion Bacterial Cultures & FOS Fibres - 30 Capsules
- Optibac Probiotics Bifido & Fibre - Vegan Digestive Probiotic Supplement with FOS Fibre to Maintain Regularity & 25 Billion Bacterial Cultures - 30 Sachets

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-06-18*