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Imperata Cylindrica Root Extract

Also-called-like-this: Cogon Grass Root Extract, Japanese Bloodgrass Root Extract
What-it-does: moisturizer/humectant

Official CosIng Information


A subtropical plant that thrives in flooded environments and is claimed to give excellent long-term moisturizing effects. Its hydrating ability is due to the chemical composition of the rhizomes that contain natural osmoprotective compounds such as 3-dimethylsulfoniopropionate (DMSP), potassium, starches, and sugars. 

Osmoprotective compounds are interesting, skincare-wise, as they are thought to be able to increase intracellular osmosis, meaning water is drawn into the skin cells. According to the efficacy data from the manufacturer, 2% of ABS Imperata Cylindrica Extract (the trade name of the diluted version of the root extract) is able to increase the level of skin moisturization by almost 45%, which is 88% more effective than the untreated control. 

This all sounds great, however, in terms of comparative effectiveness, Imperata Cylindrica came up somewhat short in the study published in the Journal of cosmetic dermatology. They compared four hydrogels with different moisturizer actives and although all the formulas did hydrate the skin, the one with Imperata Cylindrica extract performed less well than the same formula with urea or sugar-based hydrating trio, called Aquaxyl

Still, it is a skin goodie with nice moisturizing properties, so if you are after skin hydration, it is a good one to spot on the INCI list. 

Show me some proof

  • Leite e Silva, Vânia Rodrigues, et al. "Hydrating effects of moisturizer active compounds incorporated into hydrogels: in vivo assessment and comparison between devices." Journal of cosmetic dermatology 8.1 (2009): 32-39.

Products with Imperata Cylindrica Root Extract

SAMPAR So Much To Dew Day Cream Image Vital C Hydrating Anti-Aging Serum Murad Retinol Youth Renewal Eye Serum RAU Express Lift The Body Shop Vitamin E Aqua Boost Essence Lotion AlumierMD Aqua Infusion Mask Biotulin Supreme Skin Gel Borghese Fango Brillante Brightening Mud Mask Darphin Skin Mat Matifying Lotion Isana Age Performance Intensiv Augenserum Klapp Eye Care Serum Caviar Pover Chantecaille Bio Lifting Serum + Colorscience Sunforgettable Total Protection Brush-On Shield Spf 50 Kayman Beauty Skintella Repairing Serum Sepai Egf Youth Molecule Serum CNP Laboratory Green Propolis Ampule Mask Chantecaille Bio Lifting Cream + Darphin Hydraskin Intensive Skin-Hydrating Serum Declaré Switzerland Hydrobalance Moisture 24H Effect Ampoule Filorga Time-Filler Night Frezyderm Ac-Norm Aquatic Cream Frezyderm Moisturizing Plus Cream (30+) Kiehl’s Ultra Facial Oil-Free Gel-Cream Kiehl’s Ultra Facial Oil-Free Lotion Rosette Aqua Ceramide Gel Soap & Glory Speed Plump™ Overnight Moisture Mousse Tony moly Timeless Ferment Snail Eye Mask Bougas Beauty Cleanser CNP Propolis Energy Ampule CNP Laboratory 2-Step Propolis Energy Ampule Mask CNP Laboratory Propolis Energy Ampule CULLUN HA Rejuvenating Hydrator Colorescience Sunforgettable® Total Protection™ Brush-On Shield Spf 50 Darphin Hydraskin Cooling Hydrating Stick Eyetitude Eyez-Luronic Serum Filorga Time-Filler Mat Perfecting Care IOMA 3 Renew Lip Lift Jouviance 3-In-1 Anti Aging Cream Kiehl’s Ultra Facial Oil-Free Gel-Cream Korres Wild Rose Advanced Brightening 24 Hour Moisturizer Missha Super Aqua Ultra Waterfull Clear Cream Yon-Ka Hydra No 1 Masque 7 days mask Green Tea - Sebum Control & Peeling Bobbi Brown Hydrating Gel Cream By Terry Cellularose Hydra-Éclat DailyCare By Terry Cellularose Hydra-Éclat Mask CNP Laboratory Green Propolis Anti-Oxidant Ampule Chantecaille Bio Lifting Oil Free Fluid + Cinq Mōndes 7 Chinese Plants Eye Contour Ointment Dr v Lip X Balm