Curcuma Longa Rhizome Extract
INCI: CURCUMA LONGA RHIZOME EXTRACT
Reviewed by Daisy · Last updated 14 Aug 2026
A plant extract with traditional use and emerging research into skin-soothing properties
Best For Skin Types
All, Sensitive
Addresses
Effective Concentrations
0 to 1%
Usage Frequency
Daily
What Is Curcuma Longa Rhizome Extract?
Curcuma longa rhizome extract is derived from turmeric, a rhizome (underground stem) commonly used in cooking and traditional medicine. The extract contains curcuminoids, naturally occurring compounds that give turmeric its characteristic golden colour and are thought to be responsible for many of its biological properties.
In skincare, this ingredient functions primarily as a skin conditioning agent, helping to support the skin's appearance and feel. It has been used traditionally for centuries, though its role in modern cosmetics remains an area of ongoing research.
How It Works
Curcuminoids, the active compounds in turmeric extract, are thought to work by modulating inflammatory pathways in the skin. In cell studies, these compounds have shown the ability to reduce the production of inflammatory signalling molecules in keratinocytes (the skin's outer layer cells), potentially helping to calm irritation and support barrier function.
The extract may also support hyaluronan production — a molecule crucial for skin hydration — and may help protect skin cells from damage caused by ultraviolet radiation, though the practical significance of these effects in topical skincare products requires further investigation.
Clinical Evidence & References
Laboratory studies using keratinocyte cultures show that turmeric extract can reduce inflammatory cytokines when skin cells are exposed to ultraviolet B radiation. A randomised, double-blind, placebo-controlled trial in healthy participants found that oral consumption of a hot water extract over 8 weeks improved skin hydration and supported skin resilience following UV exposure, though results were modest.
Evidence for topical application remains limited. Most published research focuses on curcumin's potential rather than the extract as used in skincare formulations. Penetration into the skin can be variable, and more human studies would help clarify whether concentrations used in cosmetics deliver meaningful benefits. The ingredient warrants continued research but cannot yet be considered proven for specific skin conditions.
Published Research
How to Use
Curcuma longa extract is typically used in leave-on products such as serums, creams, and moisturisers at low concentrations. It can be used daily as part of a regular skincare routine. If combining with other actives, monitor your skin's response as turmeric may enhance sensitivity in some individuals. Patch testing is advisable if you have particularly reactive skin.
Safety & Precautions
Frequently Asked Questions
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Curcuma Longa Rhizome Extract is a variant of Curcuma Longa (Turmeric) Root Extract, the form you will most often see on an ingredients list.
Also known as turmeric, this spice has a long history of use in traditional medicine.
Related Ingredients
Curcuma Longa (Turmeric) Root Extract
Also known as turmeric, this spice has a long history of use in traditional medicine.
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Curcuma Longa Root Extract
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Curcuma Longa (Turmeric) Root
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