---
product_id: 21186329
title: "Acidophilus & Bifidus Double Strength, Probiotic and Prebiotic Formula, 90 Capsules"
brand: "natural factors"
price: "$35.75"
currency: USD
in_stock: true
reviews_count: 13
category: "Natural Factors"
url: https://www.desertcart.us/products/21186329-acidophilus-and-bifidus-double-strength-probiotic-and-prebiotic-formula-90
store_origin: US
region: United States of America
---

# 10B CFUs probiotic strength Freeze-dried for max potency 3rd-party purity tested Acidophilus & Bifidus Double Strength, Probiotic and Prebiotic Formula, 90 Capsules

**Brand:** natural factors
**Price:** $35.75
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your gut game — because thriving starts from within!

## Quick Answers

- **What is this?** Acidophilus & Bifidus Double Strength, Probiotic and Prebiotic Formula, 90 Capsules by natural factors
- **How much does it cost?** $35.75 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/21186329-acidophilus-and-bifidus-double-strength-probiotic-and-prebiotic-formula-90)

## Best For

- natural factors enthusiasts

## Why This Product

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

## Key Features

- • **Clean & Pure Formula:** Non-GMO, gluten-free, no artificial additives—because your gut deserves the best.
- • **Convenient Daily Dose:** Just one easy-to-swallow capsule up to 3x daily keeps your gut thriving without hassle.
- • **Potency You Can Trust:** Freeze-dried strains ensure maximum stability and effectiveness on arrival.
- • **Double-Strength Gut Power:** 10 billion CFUs of probiotics + prebiotic goat's milk for next-level digestive wellness.
- • **Certified for Your Confidence:** Independently tested for GMOs and 700+ contaminants with cutting-edge mass spectrometry.

## Overview

Natural Factors Acidophilus & Bifidus Double Strength delivers a potent 10 billion CFU probiotic and prebiotic blend in a clean, non-GMO formula. Freeze-dried for maximum stability and independently tested for purity, these easy-to-take capsules support digestive health, regularity, and immune resilience—perfect for professionals who demand both efficacy and quality.

## Description

Buy Natural Factors, Acidophilus & Bifidus Double Strength, Probiotic and Prebiotic Formula, 90 Capsules on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Wow - good service and excellent product - This has been my go-to brand of acidophilus forever. I currently need it because of the heavy antibiotics I need to be on for several weeks. This has always prevented yeast overgrowth (in the vaginal and oral cavity). I also super appreciate the way it was wrapped to ensure it was kept cold while in transit. Thank you for being a caring company. Linda.
Review: Definitely Potent - I've taken probiotics for many years, beginning with a very expensive brand advertised on the radio, and other brands since then. Sometimes I switch for price, or because they quit working for me or I need to increase the dose, or sometimes I get a product that might have been poorly-handled in the heat. For whatever reason, I become unhappy with a brand, so I try another one. After reading reviews this time I decided to try these by Natural Factors. I know probiotics are potent if they: Cause intestinal activity for a few days as I adjust to different organisms - these did. Keep food and environmental allergies in check - yep, working for me very well. Maintain intestinal regularity - good, just as they should. Help immunity from colds and viruses - so far so good. They're small, easy to swallow. I only need to take one a day. I like that these are in a bottle and not blister packs. The attached flip top is very convenient and easy to open. Even though you don't have to, I keep them in the fridge just to make sure they stay as potent as possible.

## Features

- Probiotic & prebiotic blend: Cultivate digestive wellness with our double-strength formula including 10 billion CFUs of probiotics and prebiotic goat's milk
- Happy gut, happy life: Help your gut health thrive while also promoting regular digestion and intestinal tract health
- Get the most from your probiotic: Freeze-dried to ensure each probiotic strain is stable and arrives at its maximum potency
- Just one capsule: Take up to 3 times daily; Non-GMO and free of gluten, artificial colors, preservatives or sweeteners
- Third-party certified: Independently tested for GMOs and over 700 contaminants using advanced technology such as mass spectrometry to ensure purity and potency

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00016WW9U |
| Best Sellers Rank | #76,157 in Health & Household ( See Top 100 in Health & Household ) #477 in Acidophilus Nutritional Supplements |
| Customer Reviews | 4.6 4.6 out of 5 stars (486) |
| Date First Available  | September 1, 2009 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1805 |
| Manufacturer  | Natural Factors |
| Product Dimensions  | 2.12 x 2.12 x 3.87 inches; 2.4 ounces |

## Product Details

- **Brand:** Natural Factors
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Item Weight:** 0.07 Kilograms
- **Item dimensions L x W x H:** 2.12 x 2.12 x 3.87 inches
- **Primary Supplement Type:** Acidophilus
- **Product Benefits:** Brain Health Support
- **Special Ingredients:** Acidophilus
- **Unit Count:** 90 Count

## Images

![Acidophilus & Bifidus Double Strength, Probiotic and Prebiotic Formula, 90 Capsules - Image 1](https://m.media-amazon.com/images/I/71q6tRBJ0HL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this none GMO and organic?**
A: Yes

**Q: Shipped without refrigeration- why?**
A: I’m not sure. Will say I think most of the, “keep refrigerated,” supplements likely are not stored that way in the warehouses. That said, I make cheese and that requires the microbes and starters be kept refrigerated. They ship mostly USPS and there’s no refrigeration there. I just put them in cold storage when I get them. I’ve never had a bad batch of the basic starters. Bacteria are hearty little buggers, so you’ll probably be fine if you toss it in the fridge as soon as it arrives. Hope that helps.

**Q: Why was mine shipped without cold/ice protection? It is not good when arrived? Have to throw out/return now?**
A: Apparently it doesn’t need refrigeration. I thought it did but manufacturer said no. I still refrigerate once opened.

**Q: This product should be refrigerated.  Is it shipped with an ice pack?**
A: It isn’t. But I wrote to manufacturer and was told refrigeration only needed after opening.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wow - good service and excellent product
*by A***R on January 6, 2024*

This has been my go-to brand of acidophilus forever. I currently need it because of the heavy antibiotics I need to be on for several weeks. This has always prevented yeast overgrowth (in the vaginal and oral cavity). I also super appreciate the way it was wrapped to ensure it was kept cold while in transit. Thank you for being a caring company. Linda.

### ⭐⭐⭐⭐⭐ Definitely Potent
*by A***R on November 11, 2014*

I've taken probiotics for many years, beginning with a very expensive brand advertised on the radio, and other brands since then. Sometimes I switch for price, or because they quit working for me or I need to increase the dose, or sometimes I get a product that might have been poorly-handled in the heat. For whatever reason, I become unhappy with a brand, so I try another one. After reading reviews this time I decided to try these by Natural Factors. I know probiotics are potent if they: Cause intestinal activity for a few days as I adjust to different organisms - these did. Keep food and environmental allergies in check - yep, working for me very well. Maintain intestinal regularity - good, just as they should. Help immunity from colds and viruses - so far so good. They're small, easy to swallow. I only need to take one a day. I like that these are in a bottle and not blister packs. The attached flip top is very convenient and easy to open. Even though you don't have to, I keep them in the fridge just to make sure they stay as potent as possible.

### ⭐⭐⭐⭐⭐ Product is grreat
*by C***L on August 12, 2024*

Product is great, however delivery WAS NOT. Ordered through Prime and said 1 day delivery which did not happen. Got another delivery date it changed approximately 5 times before they were delivered. Ordered July 18th and they were delivered August 8th. Too long.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*