Little Scientist: Japanese Hair Care by Kintsu Collective
Little Scientist shines within Kintsu Collective’s Japanese hair care lineup, combining scientific innovation with long-standing traditions to deliver deeply restorative results tailored to modern hair concerns.
Driven by advanced keratin and CMC technology, the line offers targeted care for wavy, curly, and straight hair, each formula designed to rebuild and reinforce the hair’s structure from within. Key ingredients, such as hydrolyzed silk, work at the source of damage to restore strength, improve texture, and enhance natural shine.
With the trust of over 500,000 users in Japan, Little Scientist is expanding across Canada, offering a complete system of precise, high-performance treatments for all hair types and textures.
How Little Scientist Redefines Japanese Hair Care
Little Scientist’s philosophy centres on genuine repair by restoring the hair’s internal keratin and CMC framework, rather than covering up surface-level damage.
By focusing on the structure beneath, the brand turns everyday routines into targeted treatments that address the true causes of hair weakness, dullness, and breakage.
Tradition Meets Technology
Products under the Little Scientist brand honour traditional ingredients, drawing inspiration from centuries of Japanese beauty practices such as rice water rinses and camellia oil treatments.
Each formula is grounded in these time-tested practices and enhanced with modern delivery systems and advanced actives for deeper repair.
Science You Can See
Our in-house labs put every product through rigorous testing to ensure clean ingredient lists and clinically proven performance. Expect noticeable improvements in strength, shine, and manageability within just a few uses.
Trusted by Experts
Used in more than 12,000 salons across Japan, Little Scientist earns praise on the salon floor and referrals from leading stylists.
It is a go-to line for professionals and is quickly gaining popularity among Canadian stylists who rely on its targeted solutions for a range of hair concerns.
Powerful Silk Protein Hair Treatment
Discover the star of Little Scientist’s lineup: a rich formula powered by hydrolyzed silk proteins and advanced CMC technology. This silk protein hair treatment blends seamlessly with our Japanese hair care heritage to restore strength and shine at every layer of the strand.
Deeper Repair with Keratin
Kintsu’s Little Scientist combines AEDS keratin and silk proteins to penetrate deep into the shaft and rebuild internal structure. Over time, your hair feels stronger and more resilient, without any heavy buildup. It pairs perfectly with products for wavy hair and targeted care for curly hair, keeping each curl and wave defined and fortified.
Boost Shine
This treatment works by sealing the cuticle and smoothing the outer layer of each strand, which helps reduce friction, prevent tangles, and enhance manageability. After styling, hair feels noticeably softer and reflects a natural, healthy-looking shine.
Nourish Your Scalp
A soothing blend of botanical extracts and light emollients calms irritation and balances moisture. This step creates an ideal environment for healthy growth, rounding out a truly holistic routine that supports hair from root to tip.
Science-Backed Hair Care for Every Texture
Each Little Scientist formula is created to support the specific needs of coarse, treated, curly, or straight hair, recognizing that every texture requires a different approach. By fine-tuning hydration, protein, and structural support, the brand offers inclusive solutions that address unique concerns and help build strong, healthy hair from root to tip.
For Naturally Straight Hair
For Defined, Frizz-Free Curls
For Coarse or Treated Hair
Lightweight cleansers remove buildup without stripping natural oils. Keratin peptides and silk protein smooth each shaft, increasing glide and sealing the cuticle for a glossy finish. Daily-use leaves hair feeling smooth, soft, and full of natural volume.
Intense hydration locks in moisture using CMC technology and nourishing botanical humectants.
Each curl is infused with rich moisturizers that help reduce breakage and maintain long-lasting shape and definition. The result is soft, frizz-free curls that stay bouncy and well-defined in any climate.
Targeted repair ingredients rebuild weakened keratin frameworks in bleached, permed, or heat-styled hair.
Liquid crystal cholesterol and nano-CMC restore structure from the inside out. Over time, strands feel stronger, more elastic, and visibly healthier, even after repeated chemical or thermal treatments.
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