21st Century Ultimate Probiotic, 50 Billion, 30 Vegetarian Capsules
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Price history
Best price so far: £18.56 at Iherb on 2 Sept 2026
Close to the typical price of £18.56 over the last 90 days — a drop may be worth waiting for. Set an alert and we'll tell you.
About this product
Prolonged ReleaseNatural Probiotics4 High Potency Probiotic Strains50 Billion Live Probiotic Cultures†Suppports, Gut Comfort, Regularity & Immune HealthDietary SupplementGluten FreeNon-GMOVegetarian FriendlyLaboratory TestedTrusted Quality for Over 30 YearsUltimate Gut Harmony21ST Century Ultimate Probiotic Prolonged Release formula is a potent probiotic blend delivering 50 billion live cultures† in a specialized prolonged release system that helps beneficial bacteria throughout your digestive tract. Unlike ordinary probiotics that release all at once, our probiotic ensures prolonged delivery of friendly bacteria for maximum effectiveness. 24-Hour Digestive Comfort Supports optimal gut balance and digestive health Enhanced Regularity Helps maintain healthy bowel function and regularity Immune System Support 70% of your immune system resides in your gut - our formula helps support your body's natural defenses Prolonged Release Capsule Ensures beneficial bacteria reach your entire digestive system, not just your stomach†50 Billion active cultures per serving guaranteed at time of manufacture.