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Keratin Types: Brazilian, American, Japanese - What are the Differences?

C Boutique Editorial TeamJanuary 31, 20268 min read

Not all keratin is created equal.The differences between the types are significant and affect the result, health, and maintenance.

Brazilian Keratin

The most popular type in the world, originating in Brazil.

Characteristics:

  • Medium - high smoothness
  • Maintains some volume at the roots
  • Lasts 3 - 4 months
  • Suitable for wavy to medium curly hair

Advantage:

More natural look, not too "flat".

American Keratin

Improved version of the Brazilian, developed in the USA.

Characteristics:

  • Formula with low or no formaldehyde
  • Less strong smell during treatment
  • Suitable for those sensitive to chemicals
  • Lasts 2 - 3 months

Advantage:

Safer for health, less aggressive.

Japanese Straightening

Traditional Japanese method now combined with keratin.

Characteristics:

  • Maximum smoothness
  • More dramatic result
  • Suitable for very curly hair
  • Longer treatment time(4 - 5 hours)

Advantage:

Completely smooth result, perfect for difficult hair.

Plant - Based / Organic Keratin

More natural version based on plant ingredients.

Characteristics:

  • Formaldehyde - free
  • Based on plant proteins
  • Suitable for fine or damaged hair
  • Lasts 2 - 3 months

Advantage:

Most gentle on hair, also suitable during pregnancy.

How to Choose ?

Hair Type Recommendation
Lightly Wavy American Keratin
Medium Curly Brazilian Keratin
Heavy Curly Japanese Keratin
Fine / Damaged Hair Plant-Based Keratin

What Do We Recommend ?

"I choose the type of keratin according to the hair, not what's popular. What works for one won't necessarily work for another."
Eliran Cohen

The Skinification of Hair: The Scalp Care Revolution

In 2026, the global beauty community is unequivocal: robust hair longevity begins with an immaculate scalp environment. The "Skinification" movement dictates treating your scalp with the identical luxury protocols and precision active ingredients as the skin on your face. Our avant-garde scalp treatments perform extreme detoxification, unclog suffocated hair follicles, and stimulate vital microcirculation.

Hyaluronic Acid and Collagen Hair Therapies

Exactly as they perform miracles for facial elasticity, specially synthesized anti-aging molecules for hair penetrate past the cuticle into the deepest cortex layers. These treatments instantly replenish lost protein mass, bestow unprecedented elasticity, and aggressively halt premature breakage.

Frequently Asked Questions (FAQ) - Health & Treatment Therapies

How do I know if I critically need a scalp exfoliation (peeling) treatment?
If you are suddenly experiencing extreme flat roots, oily dandruff, persistent itchiness, or if your hair simply stops responding to high-end products that previously worked brilliantly—these are definitive symptoms of follicle buildup requiring immediate professional detoxification.

Can deep repair treatments truly "glue" split ends back together?
No product globally can permanently fuse a mechanically severed hair end. Deep treatments cosmetically seal the rift and create a protective armor to prevent the tear from traveling further up the shaft. The only genuine cure is a precision trim (dusting) followed by aggressive preventative therapy.

What is the K18 treatment and why is it superior to traditional masks?
K18 utilizes a patented bioactive peptide engineered to perfectly mimic the human keratin structure. While conventional masks merely deposit a temporary smoothing film on the outside of the hair, K18 physically travels internally to re-link severed polypeptide chains in just 4 minutes.

Want to Consult?

Our experts are available to answer any questions and help you choose the perfect treatment.

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