#Japan #AI Robotics #Hair Care #Minato #Straine

Straine Unveils Innovative 2.5x Refill for Straight Hair Care Products

Straight hair care brand Straine, developed by Ai Robotics Inc. based in Minato, Tokyo, is launching a new refill size that is 2.5 times larger than their standard offerings, available exclusively on e-commerce platforms like Amazon and Rakuten, starting November 5, 2025.

A New Era of Hair Care

With its straight shampoo and straight treatment, Straine has emphasized a scientific approach to hair care that focuses on repairing internal hair structure. Their unique formulations feature the world’s first straight silk care ingredients, aiming for straight, supple, and beautifully structured hair. This new refill size of 1,000 mL allows for more convenient and sustainable use of these products, making daily straight care easier and more efficient.

User-Friendly Design for Every Household

The new refill is designed for ease of use, featuring a round cap that prevents leakage and spillage during the refilling process. Its compact design allows it to be stored upright, making it an excellent choice for those looking to save space in their bathrooms or storage areas. With this innovation, users can enjoy cost-effective hair care without compromising on quality or experience.

Product Line Details

Straine Straight Shampoo (1000 mL) - ¥3,850

• - Scent: White Blossom
• - Benefits: Focused on cleansing while maintaining moisture, Straine’s shampoo is formulated with nine essential amino acids and keratin for a robust cleanse without stripping vital hydration. Each wash works to repair waves and curls, leaving hair straight and shiny.

Straine Straight Treatment (1000 mL) - ¥3,850

• - Scent: White Blossom
• - Benefits: This high-repair treatment is designed to deliver nutrients deep into the hair structure, promoting hydration and shine. It leaves hair feeling sleek and manageable, resembling the results one would experience after a salon visit.

Combo Set - ¥7,700

• - Includes both the shampoo and treatment in the new 1000 mL refill size for comprehensive hair care.

Sustainability Meets Luxury

Straine’s focus on sustainability with their large refills aligns perfectly with modern consumer values, promoting not only luxurious hair care but also environmental consciousness. The products are formulated without parabens, sulfates, or artificial dyes, making them suitable for a wide range of hair types.

Availability and Purchase Information

The exciting new refill sizes can be ordered from various e-commerce sites, including:

• - Rakuten Marketplace
• - Amazon Japan

Mark your calendars! The new large refills will be available from November 5, 2025. Straine is set to transform your hair care routine by providing effective solutions that cater to the needs of consumers seeking beautiful, straight hair. ## About Ai Robotics Inc.
Ai Robotics Inc. was founded on the principle of creating new freedoms through innovative technologies. The company aims to continually introduce D2C brands powered by AI technology. Apart from the Straine hair care line, their product lineup also includes the Yunth skincare brand and Brighte beauty appliances, expanding their reach in the beauty and personal care market.

For more information or updates, follow Straine on social media: Instagram: @straine_official and Twitter: @straine_jp.