Jeju Hijiki (Sargassum fusiforme) seaweed, one of the two source materials for Sargacud

Jeju-harvested Hijiki (Sargassum fusiforme), the marine source paired with Cudrania tricuspidata in Sargacud.

Sargacud is BK bio's branded hair-health ingredient: an ethanol extract of Jeju Hijiki (Sargassum fusiforme) and Cudrania tricuspidata, standardized to chlorogenic acid. It works on two fronts, waking the hair follicle and feeding it a concentrated supply of nutrients.

At a glance

Ingredient specification

Brand nameSargacud^®
Ingredient nameHijiki (Sargassum fusiforme), Cudrania tricuspidata
Manufacturing methodEthanol extraction
Marker compoundChlorogenic acid, 600 ppm or more
Recommended intake500 mg per day, as Hijiki & Cudrania extract
OriginJeju, Korea

Functions & features

What Sargacud does

Hair-follicle activation (Awake)
High-concentration nutritional supply (Feed)
Hair diameter & gloss support

Sargacud works in two stages: the follicle is first stimulated (Awake), then supported with a concentrated nutritional supply (Feed). The extract is standardized to chlorogenic acid at 600 ppm or higher, the polyphenol that anchors its activity.

Human clinical trial

Clinical results

+2.32%

Significant increase in hair diameter (thickness) versus the placebo group.

+3.30%

Significant improvement in the hair glossiness index (p < 0.001).

The study was conducted with the Global Medical Research Center in 20 adult men and women who consumed Sargacud for 8 weeks. The ingredient was proven safe, with no adverse reactions across the 8-week consumption period.

Efficacy results summary — clinical and pre-clinical evidence
Stage	Evaluation parameter	Result
In-vitro (cellular)	Dermal papilla cell proliferation	119% growth rate in hHDFP cells, outperforming Minoxidil (107–108%).
In-vivo (animal)	Hair regrowth speed	Significantly faster regrowth observed on days 9–11 versus the Minoxidil group.
Human clinical	Hair diameter (thickness)	Significant +2.32% increase versus the placebo group.
Human clinical	Hair shine (glossiness)	Significant +3.30% improvement in the gloss index (p < 0.001).

Note: results may vary by individual.

References

Patent & journal

PatentKR 10-2884771, KR 10-2207989 (Cudrania tricuspidata)
JournalLab Anim Res. 2023 Feb 17;39(1):4.

Source botanicals. Sargacud combines Jeju-harvested Hijiki (Sargassum fusiforme), a marine source, with Cudrania tricuspidata. The extract is standardized to its marker polyphenol, chlorogenic acid, at 600 ppm or higher.