Lactobacillus salivarius Ls-33 is a specific probiotic strain chosen for its ability to survive stomach acid and stick to intestinal cells better than generic L. Salivarius. This makes it useful for targeted effects in both the gut and the mouth.
People use it to maintain a balanced gut microbiome, especially during antibiotic therapy, and to support oral hygiene by crowding out harmful bacteria in the mouth. It also helps ease mild gastrointestinal discomfort and encourages regularity.
Most formulas are dairy-free and come in capsules or powders. Taking it with a meal helps more bacteria survive the digestive tract. You can store it at room temperature, though refrigeration may keep it potent longer.
Anyone with a compromised immune system (such as after an organ transplant or during chemotherapy) or short bowel syndrome should speak with a doctor before using it. Some people may notice temporary bloating or gas at first.