Original Raw Material
Steron Power Mix®

Supporting men who want to stay powerful and energetic every day! : Steron Power Mix®
Driven by this commitment, our journey to search for ingredients that boost testosterone secretion began.

Male Menopause (Andropause)
Male menopause is a condition where a decline in testosterone—the primary male hormone—causes both physical and mental imbalances. According to Japan's demographic statistics, over 6.55 million men are estimated to be affected.
Triggered mainly by social stressors such as interpersonal relationships or retirement, primary symptoms include persistent fatigue and low mood. A report by the Ministry of Economy, Trade and Industry (METI) estimates that the economic loss due to absenteeism and reduced productivity reaches 1.2 trillion yen annually.
Scientifically Backed & Internationally Patented
Our proprietary formulation is officially patented in Japan, China, and South Korea as an effective Testosterone Secretion Promoter. This international recognition guarantees top-tier quality, innovation, and trust for our global customers.



Tested 100 Selected Candidate Ingredients for Testosterone Secretion

Cell Culture(Culturing target cells for testing)⇒Screening with Candidate Ingredients(Stimulating cultured cells with 100 selected food-grade ingredients)⇒Testosterone Level Measurement(Quantified using the ELISA method)
Key Outcome / Result Text
As a result, we successfully identified multiple active components that stimulate testosterone secretion!
Introducing a New Functional Botanical Ingredient Combining 3 Active Extracts!
Steron Power Mix®
Key Active Components (3 Key Ingredients)
Delphinidin-3-rutinoside (from Blackcurrant / Cassis)
Rosmarinic Acid (from Red Perilla / Akajiso)
Inositol (from Rice Extract)

Key Features & Clinical Evidence (Points)
Joint R&D Project:
Co-developed with a Japanese National University over a period of more than 5 years by Japan Pharma Co.,Ltd.
100% Safe & Familiar Food Ingredients:
Formulated using only well-established food-grade ingredients with a rich history of safe human consumption.
International Patent Protection:
Patented as a "Testosterone Secretion Promoter" in Japan, China, and South Korea.
Proven Human Clinical Trial Results:
Study Design: Human monitor study administering 200mg/day(n=13) and 600mg/day(n=12) over an 8-week period.
Outcome: Demonstrated significant improvement in AMS scores (Aging Males' Symptoms scale, a self-assessment metric for male menopause severity) along with positive qualitative user feedback.
Safety: No adverse events reported throughout the study.
Steron Power Mix® was found to possess PDE-5 inhibitory activity—the same active mechanism found in Erectile Dysfunction (ED) medications like Viagra.
Mechanism of ED Medications
Step 1: PDE-5 Inhibition⇒Step 2: Inhibition of cGMP Degradation⇒Step 3: Smooth Muscle Relaxation⇒Step 4: Increased Blood Flow⇒Outcome: Erection

PDE-5 inhibitory activity was measured for Fenugreek Seed Extract, Tongkat Ali, and Steron Power Mix® to calculate their IC50 values (the concentration required for 50% inhibition).
The results demonstrated the following order of PDE-5 inhibitory strength:
Steron Power Mix® =Fenugreek Seed Extract >> Tongkat Ali Extract

The vertical axis represents PDE-5 activity, and the horizontal axis shows the concentration of Steron Power Mix®.
As the concentration increases, PDE-5 activity is significantly suppressed.
