--- product_id: 10939554 title: "21st Century Acidophilus Probiotic Supplement, Supports Digestive Health & Immune System, Non-GMO, Gluten-Free" brand: "21st century" price: "$23.15" currency: USD in_stock: true reviews_count: 13 category: "21st Century" url: https://www.desertcart.us/products/10939554-21st-century-acidophilus-probiotic-supplement-supports-digestive-health-and-immune store_origin: US region: United States of America --- # Gluten-free & Non-GMO purity Easy-to-swallow capsule form 1B live probiotic cultures 21st Century Acidophilus Probiotic Supplement, Supports Digestive Health & Immune System, Non-GMO, Gluten-Free **Brand:** 21st century **Price:** $23.15 **Availability:** βœ… In Stock ## Summary > 🦠 Elevate your gut game β€” because your microbiome deserves the best! ## Quick Answers - **What is this?** 21st Century Acidophilus Probiotic Supplement, Supports Digestive Health & Immune System, Non-GMO, Gluten-Free by 21st century - **How much does it cost?** $23.15 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/10939554-21st-century-acidophilus-probiotic-supplement-supports-digestive-health-and-immune) ## Best For - 21st century enthusiasts ## Why This Product - Trusted 21st century brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Gut Guardian Power:** 1 billion active cultures per serving to fuel your digestive balance - β€’ **Daily Digestive Defense:** Convenient once-daily capsule designed for busy professionals on-the-go - β€’ **Trusted Wellness Legacy:** Backed by 30+ years of proven quality and customer satisfaction - β€’ **Clean & Conscious Formula:** Gluten-free, non-GMO, and crafted with premium quality standards - β€’ **Synergistic Probiotic Blend:** Four distinct probiotic strains plus prebiotic Inulin for enhanced gut flora support ## Overview 21st Century Acidophilus Probiotic delivers a potent 1 billion live cultures per capsule, combining Lactobacillus acidophilus with three other probiotic strains and prebiotic Inulin to support digestive and immune health. This gluten-free, non-GMO supplement is designed for daily use in an easy-to-swallow capsule, backed by over 30 years of trusted quality and rigorous manufacturing standards. ## Description 21st Century Acidophilus Probiotic Blend To Support Your Digestive & Immune Health*21st Century Acidophilus Probiotic Blend provides 1 billion active cultures per serving†, offering a convenient way to incorporate probiotics into a daily routine. Probiotics are live microorganisms that, when consumed in adequate amounts, support a balanced gut environment*. Our Acidophilus Probiotic Blend contains Lactobacillus acidophilus, a friendly bacteria for the digestive system, synergistically combined with three other genetically distinct probiotic organisms and the prebiotic Inulin, to promote healthy probiotic activity and immune system health.* This supplement is gluten-free, non-GMO, and produced under strict quality standards. Take one capsule daily with a meal or as advised by a healthcare provider.With over 30 years of expertise, 21st Century Vitamins maintains high standards to ensure each product supports your wellness needs. From sourcing premium ingredients to rigorous testing and production, every product meets purity benchmarks.*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*1 billion active cultures per serving guaranteed at time of manufacture. Review: Very Good Product Have Taken For long Time Works Well Easy Swallow amd Well Priced - Have purchased this 6 times, (Note: I know there is a 150 count size but it's same price per pill, so no savings and 150 count is a tall bottle - does really fit in my plastic vitamin box for all supplements and Rx when I tried it I.E. 100 just more convenient size for me. Several years ago Doc advised a probiotic - ordered this one and showed it to him - said it was fine, but a lot of good ones and 21st Century Brand is as good as many. This has worked well for me and price has stayed very reasonable. I agree with comments that it's an easy to take capsule - personally any vitamin/supplement I look for on desertcart has a first criteria of being a capsule. Found some of these tablets (not coated) esp Vit C kind of start to disintegrate a bit after awhile. Anyway, agree with desertcart summary of reviews - good product, well priced and works well. Review: Works for constipation and spicy food. - I used to struggle with constipation and got diarrhea every time I ate spicy food. But this supplement has made a huge difference! I take it with water first thing in the morning on an empty stomach. Within about three hours, I have a bowel movement, and it's a healthy one. When I eat spicy food, I take it along with my meal, and it prevents the diarrhea. This is the best probiotic I've ever tried. It's truly amazing. ## Features - FRIENDLY BACTERIA FOR DIGESTIVE HEALTH SUPPORT*: Packed with 1 Billion live cultures**, good bacteria, probiotic organisms & the prebiotic Inulin, the 21st Century Acidophilus Probiotic helps promote healthy probiotic activity & immune system health* - POTENT PROBIOTIC BLEND WITH LACTOBACILLUS ACIDOPHILUS: Each of our probiotic capsules contains Lactobacillus salivarius, acidophilus, Bifidobacterium bifidum, and Streptococcus thermophilus to help promote healthy digestion and intestinal flora* - DAILY PROBIOTICS FOR MEN & WOMEN: Made with high-quality ingredients, our probiotic supplement features a gluten-free & non-GMO formula. Take one serving per day or as directed by a healthcare provider. Do not exceed the recommended dosage - CAUTION & CARE: Consult a healthcare provider before use if pregnant, nursing, on medications, have a medical condition, or are planning a medical procedure. Keep out of reach of children. Do not use if product is tampered with or seal is broken - WELLNESS THAT WORKS FOR YOU: For over 30 years, the 21st Century has been proud to offer high-quality, innovative, and trusted vitamin and supplement products to improve the health and well-being of individuals, families, and communities worldwide - *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. *1 billion active cultures per serving guaranteed at time of manufacture. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004SCEIL8 | | Age Range Description | Adult | | Allergen Information | Gluten Free | | Best Sellers Rank | #41,546 in Health & Household ( See Top 100 in Health & Household ) #203 in Acidophilus Nutritional Supplements #2,532 in Sales & Deals | | Brand | 21st Century | | Brand Name | 21st Century | | Color | No Color | | Container Type | Bottle | | Customer Reviews | 4.7 out of 5 stars 955 Reviews | | Diet Type | Gluten Free | | Dosage Form | Capsule | | Flavor | Unflavored | | Global Trade Identification Number | 00740985213391 | | Item Dimensions | 9.4 x 6.4 x 4.6 inches | | Item Form | Capsule | | Item Nype Name | Probiotic | | Item Weight | 2.88 ounces | | Manufacturer | 21st Century HealthCare, Inc. | | Manufacturer Part Number | 21339 | | Material Features | GMO Free | | Model Name | 21st Century Acidophilus Capsules, 100 Count (21339) | | Model Number | 21339 | | Number of Items | 1 | | Primary Supplement Type | Acidophilus | | Product Benefits | Digestive Health Support | | Special Ingredients | Acidophilus | | Specific Uses For Product | Digestive support | | Total Servings Per Container | 100 | | UPC | 740985213391 | | Unit Count | 100 Count | ## Product Details - **Brand:** 21st Century - **Flavor:** Unflavoured - **Primary Supplement Type:** Aciddophilus - **Unit Count:** 100 Count - **Item Form:** Capsule - **Item dimensions L x W x H:** 9.4 x 6.4 x 4.6 inches - **Special Ingredients:** Acidophilus, Gluten Free - **Diet Type:** Gluten Free - **Product Benefits:** Digestive Health Support, Immune Support, Stomach Health Support - **Age Range (Description):** All Stages ## Images ![21st Century Acidophilus Probiotic Supplement, Supports Digestive Health & Immune System, Non-GMO, Gluten-Free - Image 1](https://m.media-amazon.com/images/I/71+IWft-FUL.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Questions & Answers **Q: How many CFUs (colony forming units) are in one capsule?** A: 2 billion cfu/100 mg. **Q: After opening... does it need to be refrigerated?** A: No, it does not require any refrigeration after opening, thanks. **Q: Whats the shipping cost** A: Read the page! **Q: are these unisex?** A: Absolutely, not that I am a medical professional. But t my doctor recommended this for female care. I would not know what the benefits for men would be. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very Good Product Have Taken For long Time Works Well Easy Swallow amd Well Priced *by R***P on July 16, 2025* Have purchased this 6 times, (Note: I know there is a 150 count size but it's same price per pill, so no savings and 150 count is a tall bottle - does really fit in my plastic vitamin box for all supplements and Rx when I tried it I.E. 100 just more convenient size for me. Several years ago Doc advised a probiotic - ordered this one and showed it to him - said it was fine, but a lot of good ones and 21st Century Brand is as good as many. This has worked well for me and price has stayed very reasonable. I agree with comments that it's an easy to take capsule - personally any vitamin/supplement I look for on Amazon has a first criteria of being a capsule. Found some of these tablets (not coated) esp Vit C kind of start to disintegrate a bit after awhile. Anyway, agree with Amazon summary of reviews - good product, well priced and works well. ### ⭐⭐⭐⭐⭐ Works for constipation and spicy food. *by M***E on September 23, 2025* I used to struggle with constipation and got diarrhea every time I ate spicy food. But this supplement has made a huge difference! I take it with water first thing in the morning on an empty stomach. Within about three hours, I have a bowel movement, and it's a healthy one. When I eat spicy food, I take it along with my meal, and it prevents the diarrhea. This is the best probiotic I've ever tried. It's truly amazing. ### ⭐⭐⭐⭐⭐ Worth the money *by M***οΏ½ on May 16, 2026* Great for digestion ## Frequently Bought Together - 21st Century Acidophilus Capsules, 100 Count (21339) - Nature's Bounty Biotin Hair Skin and Nails Vitamins, Supports Healthy Hair, Skin and Nails, 10,000 mcg, 120 Softgels (Pack of 1) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/10939554-21st-century-acidophilus-probiotic-supplement-supports-digestive-health-and-immune](https://www.desertcart.us/products/10939554-21st-century-acidophilus-probiotic-supplement-supports-digestive-health-and-immune) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*