Bismuth Subgallate
INCI: BISMUTH SUBGALLATE
Reviewed by Rosie · Last updated 14 Aug 2026
An insoluble mineral compound traditionally used to support skin-comforting and skin conditioning
Best For Skin Types
All
Addresses
Usage Frequency
As tolerated
What Is Bismuth Subgallate?
Bismuth subgallate is an inorganic compound derived from bismuth, a heavy metal element. In skincare, it functions as a skin conditioning agent with astringent properties, meaning it can help tighten and firm the appearance of skin.
This ingredient has been used clinically for some time, particularly in wound care applications, where its properties are thought to support the healing process. In cosmetic formulations, it typically appears in concentrations that allow for skin conditioning benefits without the intensity of its pharmaceutical applications.
How It Works
Bismuth subgallate works as an astringent, a category of ingredients that interact with skin proteins to create a slight tightening sensation. This can temporarily refine the appearance of pores and improve skin firmness.
In wound healing contexts, evidence suggests the ingredient may support the skin's natural repair mechanisms, though the precise biochemical pathways in cosmetic formulations remain an area of ongoing research.
Clinical Evidence & References
Research into bismuth subgallate has primarily focused on its wound-healing properties in clinical settings. Studies comparing formulations containing bismuth subgallate with borneol against standard wound treatments suggest the combination may support faster healing and improved tissue quality in acute wounds.
However, most evidence comes from medical rather than cosmetic applications, and research specific to its use in skincare products at lower concentrations is limited. The ingredient shows promise, but more cosmetic-specific studies would help clarify its benefits in everyday skincare routines.
How to Use
Bismuth subgallate is typically found in formulations designed to support skin conditioning and texture refinement, such as targeted serums or treatment products. Follow the specific product instructions, as concentration and usage frequency will vary depending on the formulation. If combining with other actives, introduce gradually to monitor how your skin responds.
Safety & Precautions
Frequently Asked Questions
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