How are these different from ordinary probiotics?
They use strains studied specifically in women rather than being a general product repackaged. A general daily culture is the cheaper starting point if you are unsure.
What should I look for on the label?
Named strains with their codes and counts, rather than a single total on the front. The code is what research attaches to.
How long should I take them?
Weeks, taken daily and consistently. A few days is not long enough to judge.
Can I take these while pregnant?
Optibac make one specified for pregnancy, but speak to your midwife before starting anything.