Pueraria Lobata Root Extract
Contains isoflavones (puerarin); studied for estrogen-like activity.
Evidence by route
Topical application
Plant extract. Clinically meaningful effect on human skin is not supported by robust evidence; data limited to in vitro / lab models.
How to read tiers A–F
- CWeak evidence. In vitro data, open-label studies, or expert consensus
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Unknown
About this ingredient
Pueraria Lobata Root Extract (Kudzu) is a legume root from East Asia. Contains isoflavones (puerarin 0.8-3%, daidzein, genistein). Isoflavones are phytoestrogens binding to estrogen receptors. Where applied. Anti-aging creams and serums for mature and postmenopausal skin, hair products (0.5-3%). In Korea and Japan – a popular component in mature-skin lines. Evidence base. In vitro – antioxidant activity of puerarin and stimulation of collagen synthesis in fibroblasts. Clinical topical RCTs in humans are limited. Systemic studies (Manonai 2008) – oral kudzu isoflavones for postmenopausal symptoms show weak-to-moderate effect on hot flushes. Topical cosmetic relevance is indirect. Safety. Hypoallergenic at cosmetic concentrations. Allergic reactions rare. Pregnancy and lactation – use with caution. Systemic phytoestrogens during pregnancy and lactation are not recommended (theoretical hormonal risk to the fetus/infant). Topical use at cosmetic concentrations is considered acceptable due to minimal systemic absorption, but no direct studies. In patients with estrogen-dependent tumors (breast cancer) – discuss with oncologist.
Frequently asked questions
Is Pueraria Lobata Root Extract safe during pregnancy?
Safety data for Pueraria Lobata Root Extract during pregnancy is insufficient. Best avoided when in doubt.
What is Pueraria Lobata Root Extract and what does it do in cosmetics?
Contains isoflavones (puerarin); studied for estrogen-like activity.
What's the INCI name for Pueraria Lobata Root Extract?
The INCI name is Pueraria Lobata Root Extract.
See Pueraria Lobata Root Extract in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar in action
Explore by category
Published: · updated: