Improve Sleep Quality, Support Deep Sleep, Reduce Morning Drowsiness: Functional Food "Gussuri Mameko" Now Available!

Gussuri Mameko 60 tablets / 15-day supply / ¥2,980 (tax included)

From gut health to "sleep health": Mameko enters the sleep market.

This product is a supplement containing sake yeast GSP6 as a functional ingredient, focusing on sleep quality (deep sleep) and morning drowsiness.

Sleep quality, not just quantity, is important. Clinical trials demonstrate an approach to "deep sleep."

In response to the sleep concerns of many modern individuals, the new product "Gussuri Mameko" focuses not just on securing sleep time, but on enhancing the "quality" of sleep itself.

A clinical trial conducted on healthy adults dissatisfied with their sleep showed that when "sake yeast GSP6," the ingredient in this product, was consumed, the "Stage 1 delta wave power value," known as an indicator of deep sleep, significantly increased by 110% compared to a placebo. Reliable data supporting the daily support of "deep sleep power" was confirmed.

Furthermore, in the same clinical trial, as part of research on the body's rhythm during sleep, "urinary growth hormone levels upon waking" were measured and showed a significant increase of 137% compared to the placebo. This function of improving sleep quality (deep sleep) is supported not only by brainwave activity (delta wave power) but also by this indicator of the body's rhythm.

Additionally, subjective evaluations (OSA Sleep Inventory) assessing user perception showed a significant improvement in "morning drowsiness" scores (from 15.6 for placebo to 16.7 when consuming sake yeast GSP6).

Not only is sleep quality improved on a data level, but it is also proven to support a tangible feeling of "refreshed awakening" the next morning, directly impacting daily performance.

Sleep quality, not just quantity, is important. Clinical trials demonstrate an approach to "deep sleep."

In response to the sleep concerns of many modern individuals, "Gussuri Mameko" focuses not just on securing sleep time, but on enhancing the "quality" of sleep itself. Even if you secure enough time to sleep, insufficient deep sleep can lead to morning drowsiness and decreased daytime condition (Figure 1).

Therefore, we verified the functionality of "sake yeast GSP6," the ingredient in this product, in a clinical trial targeting healthy adults dissatisfied with their sleep.

As a result, when sake yeast GSP6 was consumed, the "Stage 1 delta wave power value," known as an indicator of deep sleep, significantly increased by 110% compared to a placebo. Reliable data supporting "deep sleep" was confirmed (Figure 2).

*Clinical Trial: A double-blind crossover study over 4 weekdays involving healthy adults. Delta wave power is a brainwave indicator considered important for evaluating the quality of deep sleep (non-REM sleep).

Regulates Body Rhythm, Eases Morning Drowsiness Proven by Objective Indicators and "Refreshed Awakening"

The power of sake yeast GSP6 in "Gussuri Mameko" extends beyond brainwave improvement. In the same clinical trial, when indicators of the body's rhythm during sleep were measured, "urinary growth hormone levels upon waking" showed a significant increase of 137% compared to the placebo (Figure 3). The function of improving deep sleep (quality) is supported by objective biological indicators.

Furthermore, to assess changes most easily perceived by users in their daily lives, a verification using subjective evaluations (OSA Sleep Inventory) was also conducted. The results confirmed a significant improvement in "morning drowsiness" scores, supporting a refreshed awakening (Figure 4).

Not only is sleep quality improved on a data level, but it also supports a tangible feeling of "refreshed awakening" the next morning, directly impacting performance from the start of the day.

*Figure 3 (Diagram of urinary growth hormone levels upon waking) is presented as an introduction to research on the body's rhythm during sleep. The claim for this product as a functional food is "Improves sleep quality (deep sleep) and reduces morning drowsiness."

"Gussuri Mameko" Product Features

☑ Solid Evidence: Contains 300mg of functional ingredient "Sake Yeast GSP6" This notable ingredient, whose data has been scientifically proven to enhance sleep quality in clinical trials, is included at a substantial 300mg per daily recommended intake (4 tablets).

☑ Supports Deep Sleep Supports "deep sleep (quality of non-REM sleep)" for those temporarily experiencing sleep quality concerns.

☑ Leads to a Refreshed Morning Reduces morning drowsiness and guides you to a healthy morning where you can be active from the moment you wake up.

☑ Commitment to Japan's Traditional Fermentation Culture True to the health supplement brand "Hakka Mameko," this is a meticulously developed sleep supplement that focuses on "sake yeast," deeply rooted in Japan's ancient fermentation culture.

Gussuri Mameko

Food Category: Foods with Function Claims (Processed Foods (Tablets, Capsules, etc.))

Notification Number: K784

Functional Ingredient: Sake Yeast GSP6 (S. cerevisiae GSP6)

Amount of Functional Ingredient: 300mg / per 4 tablets

Recommended Daily Intake: 4 tablets

Release Date: Scheduled for July 1, 2026

Price: ¥2,980 (including tax) Sales Channels: Official EC site, Amazon, Qoo10, etc.

Sales Page: https://www.flora-plus.co.jp/c/sleep

How to Consume: Take approximately 4 tablets per day with water or lukewarm water.

#HakkaMameko #GussuriMameko #mameco.japan #Sleep

Functional Claim Notification

This product contains sake yeast GSP6 (S. cerevisiae GSP6), and therefore has the function of improving sleep quality (deep sleep) and reducing morning drowsiness for those temporarily experiencing sleep quality concerns.

Seller & Contact Information

Company Name: Flora Plus Co., Ltd. (Representative Director: Nobukazu Konishi)

Address: 1-7-8 Oyodonaminami, Kita-ku, Osaka City

Reader Inquiries Phone Number: 06-4967-2122

Inquiries regarding press releases and interviews: info@flora-plus.co.jp

* "Deep sleep" and "morning drowsiness" in this document are expressed based on the functional food notification claims and supporting research papers. * Diagrams and data regarding urinary growth hormone are presented as an introduction to research on the body's rhythm during sleep. They are not used as definitive statements of product efficacy.

【Sources & References】 ・Monoi N. et al. J Sleep Res. 2016; 25: 116-123. ・Sano T, Monoi N. Effect of Sake Yeast on Sleep Quality Improvement and Application to Foods with Function Claims. Oleoscience. 2019;19(7):291-297. ・Lion Corporation Press Release, June 13, 2014 "Gussumin Yeast Power" Launch Information

Download the data PDF from here

d51251-18-ac8840499dc5b56bd38dfac34e173197.pdf