Evidence supporting the use of: Tannin
For the body system: Bladder
Synopsis
Source of validity: Traditional
Rating (out of 5): 2
Tannins are a class of astringent, polyphenolic biomolecules that have been traditionally used in herbal medicine, including for the support of urinary tract and bladder health. The use of tannin-rich plants—such as cranberry, oak bark, and uva-ursi—has a long history in folk medicine for addressing urinary tract infections (UTIs) and for their purported benefits to the bladder. These traditional uses are mainly based on the astringent and antimicrobial properties attributed to tannins, which are thought to help "tighten" mucous membranes and reduce irritation or inflammation in the bladder and urinary tract. However, modern scientific validation specifically linking tannins to improved bladder health or direct support of bladder function is limited. While there is some evidence that certain tannin-containing plants may inhibit the adhesion of bacteria to the urinary tract, most studies focus on the plants as a whole rather than on isolated tannins. Therefore, the use of tannins for bladder support is primarily justified by traditional use, with limited direct scientific research to substantiate these claims. The overall evidence rating is moderate (2 out of 5) due to historical use, but not robustly supported by contemporary clinical trials.
Other ingredients that support Bladder
asparagusbearberry
beta-sitosterol
cranberry
D-mannose
damiana
dandelion
fu ling
gokhru
goldenseal
horseradish
horsetail
lophatherum leaf
lovage
mannitol
marshmallow
methenamine
nettle
parsley
pear
plantain
pumpkin
pygeum
saw palmetto
water
sarsaparilla
squawvine
chickweed
mugwort
Indian bael
nut grass
hedychium spicatum
punarnava
goldenrod
yarrow
sodium salt
juniper berries
dodder
cornsilk
buchu
birch
couch grass
queen of the meadow
guelder rose
hydrangea
coix
polyporus
cleavers
shepherd's purse
wood betony
white oak
herbal blend (proprietary)
gravel root
akebia
Arbutin
Agrimony
Achyranthes
Alchornea
Alchemilla
Aletris
Aucubin
Anserina
Aerva lanata
Agrimonia pilosa
Alisma
Abuta
Baliospermum
bergenin
Blepharis
Balsam
Bistort
Brazillian peppertree
Bael
boldo
berry
Black Poplar
Bombax
Borassus aethiopum
Bassia scoparia
Bergenia
Boerhavia diffusa
Bottle gourd
Carrapicho
Cucurbita
Cnidium
Cornflower
Common Thatching grass
Chanca Piedra
Coconut Water
Cedar
Corktree
Cubeb
Cranesbill
Crinum latifolium
Costus
Dianthus
Didymocarpus
DL-Methionine
Dwarf Nettle
Dimethyl sulfoxide (DMSO)
Erigeron
Euryale seed
Echinodorus
Elephant's Head
European-Five Finger Grass
Goldthread
Glycosaminoglycans
Mallow
Other body systems supported by Tannin
BladderDigestive System
Gastrointestinal Tract
Gums
Intestinal System
Large Intestines (Colon)
Mucus Membranes
Skin
Stomach
Urinary System