Description
Kadus Professional Demi-Permanent Hydrogen 1.9% 1000ml is a mild, ammonia-free oxidizer designed for use with demi-permanent color. Thanks to its low 1.9% concentration, this hydrogen gently opens the cuticle, allowing color pigments to penetrate the hair shaft more effectively without weighing or damaging the hair. This makes the product ideal for clients who want a subtle color change, deepen their natural color, or camouflage emerging gray hair without the intensity of permanent color.
The ammonia-free formula significantly reduces the stress on hair during the coloring process, preserving its natural suppleness and shine. Because demi-permanent color isn't intended to lighten hair, this developer primarily offers added shine, depth, and a natural-looking result that fades gradually. This makes it a popular choice among both professionals and consumers seeking a caring, gentle, and reliable color treatment.
The generous 1000ml packaging makes this hydrogen ideal for salons or intensive home use. Its consistency mixes smoothly with demi-permanent color creams and creates a homogeneous mixture that's easy to apply. The result is a soft, shiny color with a natural finish that leaves hair feeling healthy.
Features / Key Benefits
✔ 1.9% mild demi-permanent hydrogen
✔ Ammonia-free for better hair health
✔ Darkens and deepens the natural hair color without lightening
✔ Ideal for beginning gray hair or subtle color changes
✔ Gently opens the cuticle for optimal pigment penetration
✔ Provides natural shine and a soft texture
✔ Suitable for both professionals and consumers
✔ Contents 1000ml – perfect for salon use
Instructions for use
Mix Kadus Demi-Permanent Hydrogen 1.9% with the accompanying demi-permanent color cream according to the recommended mixing ratio. Stir until a smooth, even cream is formed. Apply evenly to dry hair and allow the color product to develop for the recommended processing time. Then rinse thoroughly and condition your hair with a suitable shampoo and conditioner for long-lasting color and a soft finish.
Specifications / Technical information
Hydrogen peroxide 1.9% – demi-permanent
Without ammonia
Opens cuticles softly and in a controlled manner
Not suitable for lightening hair
Content: 1000ml
Additional information
Demi-permanent hydrogen is designed to deepen natural color, add shine, and provide light coverage on emerging gray hair. It's an excellent choice for anyone who wants a softer, less aggressive color without the long-term commitment.
FAQ
Is this hydrogen suitable for lightening hair?
No, 1.9% demi-permanent hydrogen cannot lighten hair and is only intended to deepen color.
Why is 1.9% ideal for beginning gray hair?
Because it adds mild pigment without harsh lines, subtly camouflaging gray hair.
Is this product suitable for damaged hair?
Yes, the mild formula without ammonia is gentler than permanent developers and therefore suitable for sensitive hair.
Can I use this hydrogen with permanent coloring?
No, this product is only intended for demi-permanent coloring and will not work with permanent color formulas.
Is the odor strong or chemical?
The formula is ammonia-free and therefore milder in odor than traditional developers.
How long does a demi-permanent colouring with this hydrogen last?
On average 4–6 weeks, depending on hair type, porosity and care routine.
