Limited to 2 Days! Sampling Event Held | Try Straine Haircare Brand's 2 New Shampoo & Treatment Lines for Different Hair Types Simultaneously | April 11th (Sat) & 12th (Sun) @ Shibuya Modi
Ai Robotics Co., Ltd.'s straight haircare brand Straine launched two new lines of shampoo and treatment, tailored to different hair types, on April 1, 2026. To commemorate this nationwide launch, a sampling event will be held for two days, April 11th (Saturday) and 12th (Sunday), at the Shibuya Modi storefront plaza. Attendees can receive trial samples of both the BASIC and SOFT lines, and see a large visual of brand ambassador Tomohisa Yamashita.
📋 Article Processing Timeline
- 📰 Published: April 8, 2026 at 19:00
- 🔍 Collected: April 8, 2026 at 10:31
- 🤖 AI Analyzed: April 18, 2026 at 13:36 (243h 4m after Collected)
Straine, a straight haircare brand developed by Ai Robotics Co., Ltd. (Headquarters: Minato-ku, Tokyo; President and CEO: Makoto Tatsukawa), launched two new lines of shampoo and treatment, selectable according to hair type, nationwide at drugstores and variety stores starting April 1, 2026 (Wednesday). To commemorate this nationwide launch, a sampling event will be held for two days, April 11th (Saturday) and 12th (Sunday), at the Shibuya Modi storefront plaza (1-21-3 Jinnan, Shibuya-ku, Tokyo).
Sampling event in Shibuya to try two hair-type specific lines, "BASIC" and "SOFT," at once!
A special two days to receive a one-time Straine trial set
Named by combining "straight" and "line," "Straine" returns to its essence and origin, achieving an authentic formula through deep research into hair structure. It is a straight haircare brand with a long-term perspective, fostering hair through daily care.
To address a wider range of hair concerns, focusing on the different internal structures depending on hair thickness, two new lines, [BASIC] for normal to thick hair and [SOFT] for fine hair, have been launched from April 1, 2026.
To commemorate the launch of the new lines, a special two-day sampling event will be held at Shibuya Modi, offering more people the chance to experience Straine. At this event, trial samples, each containing one use of [BASIC] and [SOFT], will be distributed. You can try both types at once.
Additionally, a large visual of brand ambassador Tomohisa Yamashita will be displayed at the 1F entrance of Shibuya MODI, the venue. You can receive a trial sample while experiencing the brand's world view with the visual. Please experience the charm of Straine in this special event-only space. Please visit us as an opportunity to choose the haircare that suits your hair type.
【Event Overview】
Event Period: April 11th (Sat) - 12th (Sun) 11:00 - 18:00
Venue: Shibuya MODI Storefront Plaza / 1-21-3 Jinnan, Shibuya-ku, Tokyo
*Sampling will end once supplies run out.
*Contents are subject to change without notice. Please be aware in advance.
Sampling Contents:
Straine Trial Size (1 use each) and Leaflet
・Straight Shampoo & Treatment [BASIC] White Blossom Scent 10mL
・Straight Shampoo & Treatment [SOFT] Berry Blossom Scent 10mL
Product Overview
Available from April 1, 2026 (Wednesday) at drugstores, variety stores, and e-commerce malls.
Straight Shampoo/Treatment [BASIC] For normal to thick hair
[Volume/Price]
Main unit 475mL / 1,980 yen each (tax included), Refill 400mL / 1,540 yen each (tax included)
Shampoo & Treatment 1-time trial 10mL / 165 yen (tax included)
〈BASIC〉 for normal to thick hair, leading to a supple and manageable finish. It washes hair while suppressing squeakiness, and even hair that tends to be stiff or spread out is adjusted to a soft and cohesive texture. Daily care prepares the hair's base, leading to manageable hair that is easy to style and arrange. Features a clear and transparent White Blossom scent.
Straight Shampoo/Treatment [SOFT] For fine hair
[Volume/Price]
Main unit 475mL / 1,980 yen each (tax included), Refill 400mL / 1,540 yen each (tax included)
Shampoo & Treatment 1-time trial 10mL / 165 yen (tax included)
[SOFT] for fine hair, newly introduced as a new lineup tailored to hair type. It adopts the "Straight Nano Shot Formula," which micronizes ingredients to a nano level. By enhancing penetration into the hair, it controls frizz while maintaining lightness, leading to a fluffy, firm, and resilient finish. Features a sophisticated adult Berry Blossom scent.
＼To commemorate the launch, a special limited-quantity set is now available!／
We are releasing a limited set where the price of the [BASIC] and [SOFT] shampoo & treatment main products remains the same, but it comes with a half-size refill of shampoo (not for sale). Please try this special limited-time offer.
STRAIGHT SHAMPOO&TREATMENT SET
[Price] 3,960 yen (tax included)
[Contents]
Straight Shampoo 475mL
Straight Treatment 475mL
Straight Shampoo Refill Half Size 200mL
Brand Ambassador Profile
Tomohisa Yamashita
Born in 1985, from Chiba Prefecture. Started entertainment activities in '96. Active in a wide range of fields including singing, dramas, movies, and commercials. Recently, he has expanded his acting career overseas, and his starring work "Drops of God" (a joint Japanese-French-American production) received attention for winning the 52nd International Emmy Awards in the Drama Series category. In 2026, he is scheduled to appear in a Japanese film for the first time in 8 years in the movie version of "Honest Real Estate."
Haircare Brand "Straine"
"Straine" is named by combining "straight" and "line." Returning to its essence and origin, it achieves an authentic formula through deep research into hair structure. It is a haircare brand that offers a new encounter with oneself to all those who suffer from frizz and waves, with carefully selected repairing ingredients for the ideal straight texture* and a unique repairing design technology focused on internal structure. We propose straight haircare with a long-term perspective, nurtured through daily haircare. X: @straine.jp Instagram: @straine_official
* Refers to a cohesive, straight, and smooth texture.
Company Profile "Ai Robotics Co., Ltd."
With the corporate philosophy of "creating new freedom," we continuously create brands utilizing AI technology. Currently, we are developing businesses with the haircare brand "Straine," the skincare brand "Yunth," and the beauty appliance brand "Brighte" as our main brands. We are expanding our product lineup.