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Ecklonia cava promotes hair growth.



Type of Spiritual Experience


Ecklonia cava is an edible marine brown alga species found in the ocean off Japan and Korea.  It is used as a herbal remedy in the form of an extract called Seanol, a polyphenolic extract. Another phlorotannin-rich natural agent, Ventol, is also extracted from E. cava.  Phlorotannins, such as fucodiphlorethol G, 7-phloro eckol, 6,6'-bieckol, eckol, 8,8'-bieckol, 8,4"'-dieckol and phlorofucofuroeckol A can be isolated from Ecklonia cava.  Other components are common sterol derivatives (fucosterol, ergosterol and cholesterol).

A description of the experience

Clin Exp Dermatol. 2013 Dec;38(8):904-10. doi: 10.1111/ced.12120.

Ecklonia cava promotes hair growth.

Bak SS1, Ahn BN, Kim JA, Shin SH, Kim JC, Kim MK, Sung YK, Kim SK.


Previous studies have reported the protective effects on skin elasticity of the edible marine seaweed Ecklonia cava, which acts through regulation of both antioxidative and anti-inflammatory responses.


We evaluated the effect of E. cava and one of its components, dioxinodehydroeckol, on hair-shaft growth in cultured human hair follicles and on hair growth in mice.


The MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay was used to check cell viability of human dermal papilla cells (DPCs) and outer root sheath (ORS) cells after treatment with E. cava and its metabolite, dioxinodehydroeckol. Hair-shaft growth was measured using the in vitro hair-follicle organ-culture system, in the presence or absence of E. cava and dioxinodehydroeckol. Anagen induction activity was examined by topical application of E. cava to the dorsal skin of C57BL/6 mice. Insulin-like growth factor (IGF)-1 expression was measured by reverse transcriptase PCR and ELISA.


The proliferation activity was found to be highest for the ethyl acetate-soluble fraction of E. cava (EAFE) in DPCs and in ORS cells. Treatment with EAFE resulted in elongation of the hair shaft in cultured human hair follicles, and promoted transition of the hair cycle from the telogen to the anagen phase in the dorsal skin of C57BL/6 mice. In addition, EAFE induced an increase in IGF-1 expression in DPCs. Dioxinodehydroeckol, a component of E. cava, induced elongation of the hair shaft, an increase in proliferation of DPCs and ORS cells, and an increase in expression of IGF-1 in DPCs.

CONCLUSIONS: These results suggest that E. cava containing dioxinodehydroeckol promotes hair growth through stimulation of DPCs and ORS cells.

© 2013 British Association of Dermatologists.

PMID: 24252083

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