TO BI KEN's "Acid Powder PT" that balances skin to mildly acidic, re-released as a regular product on Wednesday, May 20, 2026

Re-release starts Wednesday, May 20, 2026 Price: ¥2,970 (tax included)

Tokyo Biyo Kagaku Kenkyujo Co., Ltd. (Headquarters: Kita-ku, Tokyo; Representative Director: Takako Ozawa; hereinafter "Tokyo Biyo Kagaku Kenkyujo"), which develops, manufactures, and sells cosmetic manufacturing technologies and products, and operates beauty education businesses, commemorated its 90th anniversary two years ago by launching a limited-edition pressed type of its "Acid Powder" under its own brand "TO BI KEN." This "Acid Powder" has been a long-seller since its release in 1965. The product was extremely well-received, and last year's re-release also sold out completely. In response to numerous requests, it will now be offered as a "regular product available anytime." Sales will begin on Wednesday, May 20, 2026, at directly managed stores, the official online shop, and TO BI KEN retailers nationwide.

TO BI KEN | Acid Powder PT (Face & Body) 11g ¥2,970 (tax included)

TO BI KEN Acid Powder PT

The key to healthy skin is "mildly acidic."

It plays a role in maintaining the skin's environment.

While general body powders are alkaline, TO BI KEN's body powder is formulated to become mildly acidic when mixed with sweat on the skin. It's suitable for times when you're concerned about sweat on your neck, hands, feet, and armpits, or as a heat rash preventative. It can also be used for babies.

Product page here ▼
https://genoashop.net/products/detail/140

TO BI KEN | Acid Powder PT (Face & Body)

Ingredients:
Mica, Ethylhexyl Isononanoate, Kaolin, Isopropyl Palmitate, Zinc Myristate, Candelilla Wax, Tocopherol, Citric Acid, Phenoxyethanol, Fragrance

Customer Voices:
"The compact paper container has a lovely design! The puff is easy to use, and I can use it on the go without stress." (Female, 20s)
"I bought it as soon as it was released. I always apply loose powder after foundation, but I felt this one was more natural and made wrinkles less noticeable. It doesn't feel heavy and gives my skin transparency. It lasts almost half a year and is cost-effective, so I want to repurchase it." (Female, 40s)
"Just a quick application to areas where makeup tends to break down prevents foundation creasing and oily shine – it's amazing! If I also apply it to my neck, I stay comfortable even when I sweat." (Female, 50s)

Staff Comment:
"I feel that body powder, which can be used on both face and body, has become established as an item useful not only for summer stickiness but also for a quick touch-up to finish makeup. Its light texture smooths the skin surface, and when used as a finishing face powder, it creates a soft-focus, fluffy finish, which is a user-friendly point. Including the talc-free aspect, it's easy to incorporate into daily life, and we've had more opportunities to introduce it. Many customers requested it to become a regular product, so honestly, I'm happy to be able to introduce it as a staple." (Omotesando Store Staff)

Further Evolution of the Paper Tube Container!
Significantly improved ease of use and durability

In response to valuable customer feedback, we have improved the paper tube container. By thickening the inner core, we prevent wear during opening and closing, allowing for a more solid feel when in use. Furthermore, improved durability means it can be used stably for longer, providing peace of mind when carrying it.

These improvements have resulted in an even more comfortable and stress-free user experience.

Now, back to basics. Skincare focused on the skin's inherent power.

"TO BI KEN" is a skincare brand from Tokyo Biyo Kagaku Kenkyujo, which has earnestly faced skin challenges since its founding in Showa 8 (1933).

Based on beauty science, it does not penetrate the skin but supports the surface barrier function, leading to healthy skin.

Tokyo Biyo Kagaku Kenkyujo

Company Name: Tokyo Biyo Kagaku Kenkyujo Co., Ltd.
Established: 1933
Representative: Takako Ozawa
Headquarters: 3-11-9 Nishigahara, Kita-ku, Tokyo
Business Activities:
Development of cosmetic manufacturing technology and beauty education
Manufacturing and sales of cosmetics

Brands: TO BI KEN / GENOA / genoa

Corporate Website: https://tokyobiyou.co.jp/
Official Online Shop: https://genoashop.net/