Bladder Supplement Ingredients: What the Evidence Says About Cranberry, Bearberry, Berberine and Probiotics

Updated 2026-10-08 · Holisti Women's Health Editorial Team

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a commission, at no extra cost to you. This content is for information only and is not medical advice — talk to your doctor before starting any supplement.

Bladder-support supplements tend to use the same short list of ingredients. Two examples we cover, FemiCore and FemiPro, both list cranberry extract, bearberry, granular berberine, mimosa pudica and probiotics on their official websites. This guide looks at each ingredient on its own, using public sources such as NCCIH and the European Medicines Agency.

One point up front: research on an ingredient is not proof that a product works. Doses, extract types and combinations all matter, and neither of these products lists its doses.

Does cranberry help with bladder health?

Cranberry may help prevent repeat urinary tract infections in some women, but it has not been shown to help with leaks. The NCCIH cranberry page says cranberry products may lower the risk of repeat symptomatic UTIs in women by about 25 percent, and sometimes more than 30 percent, but the findings are inconsistent and its effectiveness is still uncertain.

NCCIH adds that:

• Cranberry is not recommended as a treatment for an existing UTI
• It has not been found helpful for women after gynecological surgery
• Results are inconsistent in older adults in long-term care and in pregnant women
• FDA rules allow supplement labels to say only that there is "limited" evidence for reducing repeat UTIs in healthy women

Is cranberry safe to take every day?

Cranberry taken by mouth is generally considered safe, according to NCCIH, although very large amounts can upset the stomach. Evidence on whether cranberry interacts with the blood thinner warfarin is conflicting, so people taking warfarin or other medicines should check with their provider first.

What is bearberry (uva ursi) used for?

Bearberry, also called uva ursi, is a shrub whose leaves have long been used for the urinary tract. The European Medicines Agency recognizes bearberry leaf as a traditional herbal medicine for symptoms of mild, recurrent lower urinary tract infections in adult women. That status is based on long-standing use, not clinical trials.

Is bearberry safe for long-term use?

Bearberry is not intended for long-term use. The EMA says bearberry leaf medicines should not be used for more than one week, that you should see a doctor if symptoms last more than four days or get worse, that they are only for adult women, and that women with kidney disorders must not take them.

This is the most important caution for daily bladder supplements that include bearberry. FemiCore and FemiPro are meant to be taken every day for months, and neither lists how much bearberry is in each capsule. Ask your doctor before taking a daily bearberry product.

What is berberine and why is it in bladder supplements?

Berberine is a yellow compound found in plants such as goldenseal and barberry. The NCCIH goldenseal page says it has been studied for blood sugar, cholesterol and body weight, and that very little berberine may be absorbed when taken by mouth. We did not find NIH research supporting berberine for bladder control.

Who should avoid berberine?

Pregnant and breastfeeding women should avoid berberine. NCCIH says goldenseal should not be used during pregnancy or breastfeeding or given to infants, and that its berberine constituent can be harmful to newborns.

People taking medicines should also be careful. NCCIH reports that goldenseal, which contains berberine, lowered metformin levels by about 25 percent in a study of healthy adults, which could affect blood sugar control. Goldenseal may also change how the body processes many other medicines.

Do probiotics help with urinary health?

The evidence that probiotics help urinary health is weak so far. The NCCIH probiotics page cites a review of nine studies that found no evidence that probiotics prevent urinary tract infections. It also stresses that effects are strain-specific, so a result for one Lactobacillus strain does not apply to others.

When comparing products, look for named strains and a colony count (CFU). FemiCore names five Lactobacillus strains. FemiPro lists only a "probiotic blend." Neither lists a count.

Are probiotics safe for everyone?

Probiotics are generally considered low risk for healthy people, but NCCIH says the risk of harm is higher for people with serious illnesses or weakened immune systems. NCCIH also notes that some probiotic products have been found to contain microbes not listed on the label.

What is mimosa pudica?

Mimosa pudica is a creeping plant known as "sensitive plant" because its leaves fold when touched. It appears in traditional medicine systems and is sold in some gut and "parasite cleanse" products. We found no NIH, NCCIH or MedlinePlus fact sheet on its use for bladder health, so there is no authoritative evidence to report.

How do these ingredients compare at a glance?

How do you read a bladder supplement label?

You can read a bladder supplement label in a few minutes if you know what to look for. Use these checks before you buy:

1. Doses. Look for the amount of each ingredient, in milligrams. A proprietary blend hides them.
2. Bearberry content. If bearberry or uva ursi is listed, remember the EMA's one-week limit and its warning for women with kidney disorders.
3. Berberine content. If berberine, goldenseal or barberry is listed, check with your doctor about pregnancy, breastfeeding and medicines such as metformin.
4. Probiotic strains and count. Named strains plus a CFU count are better than a vague "blend."
5. Cranberry form. Juice, dried powder and extract are not the same, so look for the type and amount.
6. Directions. Know how many capsules a day you are meant to take and for how long.
7. Refund terms. Note the number of days, when the clock starts and who pays return shipping.

What works better than supplements for leaks?

For leaks, the steps with the best evidence are pelvic floor muscle exercises, bladder training and lifestyle changes, according to NIDDK, with medicines, devices and surgery available when needed. Read our bladder leaks in women guide for details.

If you still want to compare the two bladder formulas, see FemiCore vs FemiPro.

Check FemiPro on the official website

Sources consulted: nccih.nih.gov, ema.europa.eu.