Silkworm Extract
INCI: SILKWORM EXTRACT
Reviewed by Emma · Last updated 14 Aug 2026
A traditional extract with emerging research into skin-conditioning and inflammatory response
Best For Skin Types
All, Sensitive, Combination
Addresses
Usage Frequency
Daily
What Is Silkworm Extract?
Silkworm extract is derived from silkworm droppings (also called silkworm frass), a byproduct of silk production. It has been used in traditional Eastern medicine for centuries, particularly for inflammatory skin conditions. The extract contains naturally occurring compounds including dehydrovomifoliol, megastigmadien derivatives, and glycosides that appear to interact with skin cells and immune function.
In skincare formulations, silkworm extract functions primarily as a skin conditioner, meaning it works to improve skin texture and hydration. The ingredient's bioactive compounds suggest potential benefits beyond basic moisturising, though research in human subjects remains limited.
How It Works
Silkworm extract appears to work through multiple pathways. Its bioactive compounds can interact with skin cells to improve hydration and condition the skin surface. At a deeper level, preliminary research indicates the extract may influence Th1/Th2 immune balance—a marker of how the skin responds to inflammatory triggers—by modulating cytokine production.
The exact mechanism in human skin is not fully understood, as most existing research has been conducted in animal models or cell cultures. The extract's traditional use for urticaria and atopy suggests immune-modulating potential, but evidence in controlled human trials is limited.
Clinical Evidence & References
Research in animal models and cell systems shows promising signals. Studies using silkworm dropping extract have demonstrated suppression of inflammatory markers and modulation of immune responses associated with allergic reactions. In zebrafish models, the extract has shown depigmenting effects, suggesting it may influence melanin production, though this has not been evaluated in human skin.
Human clinical data is scarce. The ingredient's long history in traditional medicine supports its general safety and tolerability, but modern skincare benefits in human subjects would benefit from controlled trials. Current evidence is sufficient to support its use as a skin conditioner, but claims about inflammatory or pigmentation effects should be considered preliminary.
How to Use
Silkworm extract is typically incorporated into serums, essences, and toners at concentrations that are currently not well-standardised in Western skincare. Use as directed by product instructions. As part of a broader skincare routine, it can be layered with other actives, though there is limited data on optimal combinations. Consistency of use will support any conditioning benefits.
Safety & Precautions
Frequently Asked Questions
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Take the skin quizOther forms of Silkworm Extract
These appear on ingredients lists under different names but are the same substance. Silkworm Extract is the common form.
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