Little Scientist Co., Ltd.

ReKERA oil

ReKERA OIL is a lightweight repair hair oil that enhances the hair’s natural strength to leave it smooth, manageable, and controlled throughout the day, without any heaviness or build-up. The formula’s Smooth Film Technology forms a flexible, protective film on the hair, which allows the excess oil to evaporate, leaving only the necessary repair ingredients. And the formula’s Pseudo 18-MEA technology mimics the hair’s natural lipid barrier to support the long-lasting adhesion of repair ingredients, while a lightweight volatile oil system reduces greasy residue, and heat-reactive lactone ingredients are activated by styling tools. The formula is infused with fullerene-based UV and oxidative stress protection, and Japanese botanical oils including kaya seed oil and tea seed oil to nourish. In tandem, low-molecular keratin, ceramides, and liquid crystal cholesterol support the repair of cuticles’ cellular membrane complex. After use, hair maintains its shine for eight hours, compared to untreated hair.

Hall (Pavilion) and Stand Number : #27068

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Launch Date (First worldwide launch must have been launched within 12 months prior to the event). Date (Month/Day/Year)
October 7, 2025
Retail Price & Fill Sizes
Regular Size / 100 mL / $57
Product Description (Function, Benefits, and Target Consumer)
ReKERA OIL is a lightweight repair hair oil that enhances the hair’s natural strength to leave it smooth, manageable, and controlled throughout the day, without any heaviness or build-up. The formula’s Smooth Film Technology forms a flexible, protective film on the hair, which allows the excess oil to evaporate, leaving only the necessary repair ingredients. And the formula’s Pseudo 18-MEA technology mimics the hair’s natural lipid barrier to support the long-lasting adhesion of repair ingredients, while a lightweight volatile oil system reduces greasy residue, and heat-reactive lactone ingredients are activated by styling tools. The formula is infused with fullerene-based UV and oxidative stress protection, and Japanese botanical oils including kaya seed oil and tea seed oil to nourish. In tandem, low-molecular keratin, ceramides, and liquid crystal cholesterol support the repair of cuticles’ cellular membrane complex. After use, hair maintains its shine for eight hours, compared to untreated hair.
Product Innovation
ReKERA OIL is a next-generation lightweight repair hair oil developed to solve the common problems associated with conventional hair oils, such as heaviness, stickiness, buildup, and loss of hairstyle durability. Unlike traditional oils that simply coat the hair surface, ReKERA OIL combines external repair technology with a lightweight sensory finish through a unique “Smooth Film Technology.” The formula forms a flexible protective film on the hair surface while allowing excess oil to evaporate, leaving only the necessary repair ingredients adhered to the hair.
Key innovative features include:
Lightweight volatile oil design that minimizes greasy residue
Smooth Film Technology for natural shine and smooth touch
Pseudo 18-MEA technology that mimics the hair’s natural lipid barrier
Combination of low-molecular keratin, ceramides, and liquid crystal cholesterol to support cuticle CMC repair
Dual lactone heat-protection system activated by dryer or iron heat
Fullerene-based UV and oxidative stress protection
Rare Japanese botanical oils including Kaya Seed Oil and Tea Seed Oil
Designed to work synergistically with ReKERA Emulsion and ReKERA Mist for internal + external hair repair The result is a highly functional salon-quality oil that delivers shine, repair, softness, and style durability without heaviness.
Product Claims & Benefits
Hair Benefits
Repairs damaged cuticles
Enhances hair shine and smoothness
Improves hair manageability
Helps reduce frizz and dryness
Maintains lightweight movement without heaviness
Protects hair from heat damage
Helps protect against UV-induced dryness and color fading
Supports longer-lasting hairstyle and curl retention
Improves finger combability and softness
Helps maintain moisture balance
Hair Types
Fine hair
Soft hair
Damaged hair
Color-treated hair
Dry and frizzy hair
Hair lacking shine
Hair sensitive to heavy oils
Performance Benefits
Lightweight non-greasy finish
Long-lasting shine and smoothness
Washes off cleanly with shampoo
Helps reduce product buildup
Supports color retention
Enhances salon finishing quality
Compatible with heat styling tools
Sensory Benefits
Silky touch
Smooth finger glide
Airy lightweight feel
Elegant natural shine
Sophisticated floral fragrance (“Blooming Veil” scent)
Research, Clinical Tests & Trials Results (Safety & Dermatological)

Top Research Results
Hair treated with ReKERA OIL maintained shine and hair cohesion even after 8 hours compared to untreated hair.
Curl styles remained more stable and resistant to collapse after applying ReKERA OIL compared with conventional hair oils. 
ReKERA OIL demonstrated easier shampoo removal while maintaining repair performance, reducing heavy oil residue buildup.
Additional Verification Results
Helped reduce color fading in repeated UV exposure and shampoo tests
Damaged hair treated with ReKERA OIL showed finger-comb smoothness comparable to healthy hair
Combination use with ReKERA Mist or ReKERA Emulsion enhanced shine and hair manageability

※ Internal verification tests conducted using treated hair tresses under controlled comparison conditions.

Certifications, Patents & Regulatory Compliance
Manufactured in Japan under cosmetic manufacturing quality standards
Formulated with cosmetic-grade ingredients compliant with Japanese cosmetic regulations
Uses salon-oriented professional formulation technology
No official patents currently claimed
No third-party certification currently claimed
Ingredients List & Formulation (Mandatory, if not specified disqualification from the contest)
Hero Ingredients
Jojoba Seed Oil
Kaya Seed Oil (Japan)
Tea Seed Oil (Japan)
Low-Molecular Keratin
Ceramides
Liquid Crystal Cholesterol
Fullerene
γ-Docosalactone
Meadowfoam-δ-Lactone
Lipophilic Vitamin C Derivative
Shikon Extract
Key Functional Technologies
Smooth Film Technology
Pseudo 18-MEA Barrier Technology
Heat-Activated Protection Technology
Cuticle CMC Repair System
Free-From / Formula Highlights
Lightweight non-heavy oil formula
Designed to minimize oily residue buildup
Salon-grade professional formulation
Technology Features
Smooth Film Technology forms a flexible protective coating on hair
Lightweight volatile oil system reduces greasy residue
Pseudo 18-MEA technology supports long-lasting adhesion of repair ingredients
Heat-reactive lactone ingredients activated by styling tools
UV and oxidative stress protection with Fullerene
Synergistic layering system with ReKERA Mist & Emulsion
Frosted glass bottle design for premium salon aesthetics
Elegant neutral gray packaging suitable for all genders and age groups
Designed for salon finishing and daily home care
Sustainability List of Certifications
Sustainability Features
Contains plant-derived oils
Uses rare Japanese botanical ingredients sourced domestically
Designed to minimize excessive oil residue and buildup
Long-lasting performance reduces excessive product usage
Glass bottle packaging
Utilizes naturally derived color from Shikon Extract
How to use it
Regular Care
Apply an appropriate amount to your hands.
Spread evenly across your palms and apply mainly to the mid-lengths and ends of the hair.
Finish by brushing or lightly blow-drying the hair.
When Used with Rekera Mist or Rekera Emulsion
Apply an appropriate amount of Rekera Mist or Rekera Emulsion.
After using a hair dryer or flat iron,
Apply an appropriate amount of Rekera Oil, focusing mainly on the ends of the hair.
Finish by brushing or lightly blow-drying the hair.
Market Positioning & Distribution Markets
Market Positioning
Premium salon-quality hair repair oil
Professional haircare / dressing care category
Positioned as a lightweight repair oil with salon finishing performance
Suitable for both professional salon use and consumer home care
Distribution Channels
Professional hair salons
Beauty distributors
Salon-exclusive retail channels
E-commerce
Social media marketing channels
Website and/or Social Media Channels + Editorial pitch
https://littlescientist.jp/en/top_listing_sale/product_rekera_mistemulsion/

Timeline

March 31, 2026

Platform Opening

May 27, 2026

Entries closing

June 22, 2026

Finalists Announcement

July 3, 2026

Deadline for Receiving Products

July 14, 2026

Awards Ceremony
Winners Announcement