73.1% Say Hair Styling Takes Longer on Rainy/Hot Days, KAMIKAI (髪改) Holds Pre-Amazon Prime Day Sale

From the rainy season into summer, even with thorough morning hair styling, hair can become frizzy due to humidity and sweat, develop waves as the day progresses, or the bangs and hairline can become messy.

Have you ever experienced these hair concerns?

KAMIKAI (髪改), a home care brand developed by a hair quality improvement salon owner and active hairdresser with over 20 years of experience, has focused on these season-specific hair concerns and conducted a survey on X.

In this survey, when asked "How much longer does hair styling take on rainy or hot days compared to normal days?", 73.1% responded that it takes longer than usual.

Furthermore, the most common answer was "10 minutes or more" at 41.1%.

Survey Period: June 22 - June 28, 2026 Target Audience: X Users Question: Questions regarding hair concerns during the rainy and hot seasons Number of Responses: 175 Survey URL: https://x.com/KAMIKAIofficial/status/2068917242998452505?s=20

《Feedback from Users》

- During the rainy season, my hair is difficult to manage and it takes over 10 minutes. - Even after taking over 10 minutes, it ends up getting messy, so I just tie it up. - Even with a curling iron, I can't achieve a satisfactory finish.

Based on these results, KAMIKAI (髪改) proposes home care solutions to shorten morning hair styling time for hair that tends to become difficult to manage due to humidity and sweat.

Pre-Sale for Amazon Prime Day

Positive Reviews Regarding Mornings

During the sale period, all KAMIKAI (髪改) products will be sold at a 10% discount on Amazon.

This is an opportunity for those who struggle with frizz and waves caused by humidity and sweat, or who find morning hair styling time-consuming, to easily try KAMIKAI's line of care products.

The pre-sale for Amazon Prime Day will be held for a limited time from July 8th to July 9th.

Eligible Products: All KAMIKAI products Discount Rate: 10% OFF Pre-Sale Period: July 8 - July 9 Sales Page: KAMIKAI Amazon Store

KAMIKAI (髪改) Born from the Field Experience of Hair Quality Improvement Salons

KAMIKAI (髪改) is a home care brand developed by the owner of a hair quality improvement salon and an active hairdresser with over 20 years of experience.

It is designed not just to maintain the salon finish for a single day, but to make hair easy to manage and keep it in a manageable state at home.

With the concept of "At-home Hair Quality Improvement Treatment," using the entire line from Shampoo 01, Booster 02, Treatment 03, Outbath Mist 04, to Care Oil 05 aims to guide hair with concerns about waves, frizz, and dryness towards a manageable and cohesive texture.

Among the KAMIKAI (髪改) series, a distinctive item is "Booster 02."

KAMIKAI Series' Distinctive Item "Booster 02"

Booster 02 is a pre-treatment serum used after shampoo and before treatment, which moisturizes the hair while supporting the absorption and finish of the treatment.

By applying it to the entire hair before treatment and layering the treatment without rinsing, it aims to create a moist and manageable texture for frizzy, damaged, or easily spread hair.

It is easy to incorporate into daily home care and is recommended for those concerned about waves and frizz caused by humidity and sweat during the rainy and hot seasons.

Learn more about Booster 02

Initiatives to Experience in Various Settings

KAMIKAI (髪改) products are available on online shops such as Rakuten Ichiba and Amazon, as well as the official e-commerce site.

We are also working to create opportunities for people to learn about KAMIKAI (髪改) hair care not only at home but also in various settings through features in the women's magazine "anan" and introduction in accommodation facilities.

Sales Pages: Rakuten Ichiba, Official E-commerce Site

Trial Set for Easy First-Time Use

KAMIKAI (髪改) also offers a trial set. This set allows first-time users to experience KAMIKAI's line of care at home before purchasing the regular sizes, making it easy to try.

For those whose hair is difficult to manage during the rainy and hot seasons, those who spend a lot of time on morning hair styling, and those whose hair easily gets messy due to humidity and sweat, this is an opportunity to experience KAMIKAI's line of care at home.

Price: ¥2,980

See the Trial Set on Rakuten Ichiba

Ranking Achievements on Rakuten Ichiba

KAMIKAI (髪改) is also sold on Rakuten Ichiba and has ranked in multiple categories.

KAMIKAI (髪改) home care products have been ranked in categories such as Shampoo & Treatment Set Ranking, Treatment Ranking, and Hair Care & Styling Ranking on Rakuten Ichiba, and are used by many customers.

Going forward, KAMIKAI (髪改) will continue to deliver at-home hair quality improvement care to more people through its official e-commerce site, Rakuten Ichiba, and Amazon.

See KAMIKAI (髪改) on Rakuten Ichiba

KAMIKAI (髪改) Home Care Expanding in Salons and Accommodation Facilities

KAMIKAI (髪改) is not only sold to general consumers but is also being introduced in hair salons and accommodation facilities.

In hair salons, it can be used for retail sales and after-care consultations as home care products to keep hair manageable after salon treatments. Its product design makes it easy for hairdressers to recommend to clients based on their hair quality and damage condition.

It has been adopted by over 1,000 hair salons nationwide, with a repeat purchase rate of 98% from salons, and is supported as a home care product that can be continuously recommended in salon settings.

Furthermore, by introducing it as a hair care product that can be experienced in guest rooms and large public baths at accommodation facilities, guests can experience salon-quality care even while traveling.

It has been introduced in all rooms at Hotel Gokuri, and guests staying there can actually use KAMIKAI (髪改).

From customers who have used it, we have received feedback such as: "The finish was good after using it at the accommodation." "My hair felt easier to manage." "I want to use it at home too."

These experiences at hotels have led to continued hair care at home.

Hotel Gokuri Exterior Hotel Gokuri's Hot Springs/Public Baths Salon Retail Display

Media Outreach

It has also been featured in the women's magazine "anan," and we are working to create opportunities for more people to learn about the brand.

We will continue to share hair care information from a hairdresser's perspective and tips for managing hair according to the season through social media, media, and online shops.

Featured in anan Magazine, February 26, 2025 issue

Representative's Comment

The rainy and hot seasons are times when we receive more consultations at hair salons about "hair getting frizzy immediately after styling," "bangs getting messy from sweat," and "it takes longer than usual to style hair."

The results of this survey also show that hair waves and frizz not only affect appearance but also impact daily preparation time.

KAMIKAI (髪改) is a brand born from over 20 years of experience as a hair quality improvement salon owner and active hairdresser, facing customers' hair concerns.

Our desire is for clients to aim for hair that is easy to manage not only after salon treatments but also with daily home care. With this in mind, we have designed our products to be used as a line, including Booster 02, Treatment 03, Outbath Mist 04, and Care Oil 05, in addition to Shampoo 01.

We hope that for those who find it difficult to manage their hair during busy mornings, daily home care will bring even a little more time and peace of mind.

Going forward, KAMIKAI (髪改) will continue to address hair concerns that change with seasons and hair types, and deliver at-home hair quality improvement care to more people.

Ririan Labo Inc. Representative: Katsuyuki Tanaka

Details and Purchase of KAMIKAI (髪改)

KAMIKAI (髪改) is available on the official e-commerce site, Rakuten Ichiba, and Amazon.

We offer set products centered around Shampoo 01, Booster 02, and Treatment 03, as well as trial sets that are easy for first-time users to try, allowing you to choose according to your hair concerns and usage scenarios.

We also accept inquiries for introduction to hair salons, accommodation facilities, and sauna facilities.

Official E-commerce Site: KAMIKAI (髪改) Official Online Shop Rakuten Ichiba: KAMIKAI (髪改) Rakuten Ichiba Store

Amazon: KAMIKAI (髪改) Amazon Store

Inquiries: [email protected]

For inquiries regarding introduction to hair salons, accommodation facilities, etc., please contact us via the email address above.

Company Profile

Company Name: Ririan Labo Inc. Address: Hashimoto Center Building 1F, 3-29-6 Hashimoto, Midori-ku, Sagamihara-shi, Kanagawa Representative: Katsuyuki Tanaka Business Activities: Planning, development, and sales of hair care products; beauty-related business

Related Links: X / Instagram / TikTok / Facebook