Changing the common perception that 'iron supplements are something to endure.' Harnessing the power of liposomes for women's iron deficiency. Next-generation hybrid supplement 'W Liposome Shot' newly released!

Nihon Yakken Co., Ltd. (Headquarters: 2-20-15 Shinbashi, Minato-ku, Tokyo; Representative Director: Tadao Maruyama) will release its new product, 'W Liposome Shot,' which simultaneously addresses the serious iron deficiency in modern women and the challenges of conventional iron supplements (absorption rate and discomfort), in drugstores nationwide starting March 27, 2026, with sequential sales planned on Amazon.

Background of Development: The pressing concern of women in their 20s-40s, "I want to take iron, but I don't want to drink it."

According to the 2024 "National Health and Nutrition Survey" conducted by the Ministry of Health, Labour and Welfare (※1),

The iron sufficiency rate for women in their 20s to 40s is approximately 60% of the recommended daily allowance, indicating an issue of “iron deficiency.”

However, conventional iron supplements faced significant “two walls.”

1. The absorption wall: Iron has very poor absorption efficiency, making it difficult for it to reach the body even when ingested.

2. The discomfort wall: The "metallic smell unique to iron" and "nausea" often lead people to give up on continuing supplementation.

'W Liposome Shot' broke through this dilemma of women who "want to continue but cannot" with "liposome technology."

※1 Ministry of Health, Labour and Welfare, 2024 National Health and Nutrition Survey Results (https://www.mhlw.go.jp/content/10900000/001603146.pdf)

Ministry of Health, Labour and Welfare, Dietary Reference Intakes for Japanese (2025 Edition) (https://www.mhlw.go.jp/content/10904750/001316585.pdf)

3 innovative points of 'W Liposome Shot'

① Thoroughly eliminates the "unpleasant smell" unique to iron

By adopting "liposome technology," which encapsulates iron in a phospholipid membrane, and making it a hard capsule,

the metallic taste of iron is less noticeable when taken orally.

② Eliminates discomfort

The liposome-processed iron is designed to reach the intestines without being exposed to the stomach, reducing uncomfortable symptoms.

This is stress-free iron that we want those who thought "iron supplements are difficult" to try.

③ Iron × Vitamin C × 10 types of multivitamins. The golden ratio for beauty and health

"Vitamin C," which has good compatibility with iron, is also liposomalized and blended.

Compared to conventional vitamin C, absorption and sustainability are enhanced.
Furthermore, it contains 10 types of multivitamins, including folic acid and vitamin B12, which aid in red blood cell formation.

Product Outline

Per 4 capsules daily intake

•Liposomal Iron: 136mg (10mg as iron)

• Vitamin C (Liposomal Vitamin C & Pure Vitamin C): 1,000mg

• 10 types of multivitamins: Folic acid, Vitamin B12, Vitamin A, Vitamin B1, Vitamin B2,

　Vitamin B6, Vitamin D, Vitamin E, Pantothenic acid, Biotin

Message from the Product Developer

'W Liposome Shot' utilizes liposome technology to maximize "ease of intake" and "実感 (real sensation/effectiveness)"

We pursued this to the utmost. We highly recommend this supplement to women who are busy with work every day and those who struggle with housework and childcare.

Company Profile

Company name: Nihon Yakken Co., Ltd.

Location: 2-20-15 Shinbashi, Minato-ku, Tokyo 105-0004

Representative Director: Tadao Maruyama

URL: http://www.nihon-yakken.co.jp/

Nihon Yakken Co., Ltd. has achieved No. 1 in sales for 10 consecutive years since 2016 (※2),

and offers many products that support customers' health and beauty, including green juice products such as "100% domestically produced young barley leaf powder" and foods with functional claims.

※2 As the 100% young barley leaf division in the domestic green juice market.

According to TPC Marketing Research (manufacturer shipments in 2025)