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Innovative line of ammonia-free hair dyes, designed to provide intense and long-lasting color, without compromising the health of your hair.
This revolutionary hair color uses advanced oil technology for easy, comfortable application with professional results from the comfort of your own home.
Benefits:
Ammonia-free: OLEO INTENSE by SYOSS is proud to offer an ammonia-free formula, which means that the coloring process will be softer and more delicate for your hair. This helps prevent damage and maintains the natural structure of the hair.
Intense and long-lasting coloration: The high-quality formula of OLEO INTENSE guarantees an intense and long-lasting color, which resists the passage of time and frequent washing.
Optimal gray coverage: With OLEO INTENSE, you can say goodbye to unwanted gray hair. Its high coverage formula ensures that gray hair is perfectly concealed, giving you a more youthful and fresh appearance.
Nourishing Oil Technology: This dye uses an innovative technology based on nourishing oils that help strengthen and protect your hair during the coloring process. The result is softer, shinier and healthier hair.
Argan Oil: Rich in nutrients and antioxidants, Argan Oil provides deep hydration and protection against damage caused by external factors.
Jojoba Oil: With emollient properties, jojoba oil helps maintain the natural moisture of the hair, preventing dryness and breakage.
Almond Oil: Almond oil provides softness and shine to the hair, reducing the appearance of split ends.
Effects:
OLEO INTENSE by SYOSS offers an intense and uniform coloration, with a natural appearance that highlights the beauty of your hair.
In addition to its ability to effectively cover gray, this product nourishes and protects your hair during the coloring process, leaving it softer, more manageable and shiny.
The lists of ingredients contained in the composition of the products are updated regularly. Check the ingredient list on the packaging before using the product.
Brand Safety Warning
This product is not intended for use on persons under the age of 16. Temporary “black henna” tattoos may increase the risk of allergy. Do not use hair dye: if you have a rash on your face or sensitive, irritated or damaged scalp, if you have ever experienced any type of reaction after colouring your hair, if you have ever experienced a reaction to temporary “black henna” tattoos. Contains hydrogen peroxide, phenylenediamines (diaminotoluenes) and ammonia. See the full list of ingredients on the bottom of the box. Avoid contact with eyes. Rinse immediately if the product comes into contact with eyes. Do not use to dye eyelashes or eyebrows. Rinse hair thoroughly after application. Wear appropriate gloves. Perform an allergy warning test 48 hours before each time you colour your hair (see enclosed leaflet), even if you have used hair colouring products before. Therefore, remember to purchase the product 48 hours in advance. In case of any reaction or if you have any concerns, consult a doctor before using any hair coloring product. Keep out of reach of children.
Mixing: Pour the contents of the dye tube into the bottle applicator provided in the package. Make sure to close the bottle well and shake to obtain a homogeneous mixture.
Application: Wearing gloves, apply the mixture evenly throughout the hair, avoiding direct contact with the scalp. Distribute the color generously from the roots to the ends.
Waiting Time: Leave the stain on for the time recommended on the package instructions for best results.
Rinse: After the waiting time has elapsed, rinse the hair abundantly with lukewarm water until the water runs clear.
Finishing: Apply the conditioner included in the package to close the hair cuticle and provide extra shine. Let it act for the indicated time and rinse again.
I’m absolutely thrilled! My hair is intensely black and gray hairs are perfectly covered. My hair is beautifully smooth and feels incredibly soft—like I’ve just been to the hairdresser. I can highly recommend it.
Translated by Google
Gender: Woman
Age: ---
Country: Deutschland
Has been using this product for: Less than 6 months
Hair type:
Dyed hair
Nadine recommends this product
ELIE
Verified purchase
15-11-2025
Favorite hair color
Very good hold for the blonde hair color
Translated by Google
Gender: Woman
Age: More than 50 years old
Country: France
Has been using this product for: More than 5 years
Hair type:
Blonde, Dyed hair
ELIE recommends this product
Gaby
Verified purchase
15-10-2025
Favorite color for years
I am very happy with the hair color
Translated by Google
Gender: Woman
Age: ---
Country: Deutschland
Has been using this product for: More than 5 years
Hair type:
Blonde
Gaby recommends this product
Océane
Verified purchase
07-08-2025
Red coloring 6.76
The red hair color 6.76 mixed with the L’Oréal Paris excellence intense hair color in 7.43 worked wonders! I started with several old black hair colors dating back several years, after bleaching only the lengths and mixing the two colors I obtained a sublime and uniform red while having dyed the roots that I had not bleached! (I am dark brown), I am a fan of my new hair I will buy again and again!
Translated by Google
Gender: Woman
Age: ---
Country: France
Has been using this product for: Less than 6 months
Hair type:
Dyed hair
Océane recommends this product
Fabienne
Verified purchase
23-07-2025
5.92
It’s not the right color
Translated by Google
Gender: Woman
Age: ---
Country: France
Has been using this product for: Not specified
Hair type:
Dyed hair
Fabienne does not recommend this product
marga
Verified purchase
10-07-2025
Syoss extreme lightening
I’ve been using it for four months and I like it much more than the one I used before.
Translated by Google
Gender: Woman
Age: Between 36 and 50 years old
Country: España
Has been using this product for: Less than 6 months
Hair type:
Dry, Dyed hair
marga recommends this product
Aury
Verified purchase
06-06-2025
CALIDAD-PRECIO
Lo utilizo hace años, me encanta el brillo que deja en el pelo, yo no utilizo el acondicionador que incluye ( no me gusta el olor), me lo pondo cada 15 días porque se me ve muy rapido la raíz, por eso me gusta el precio y la calidad.
Gender: Woman
Age: ---
Country: UK
Has been using this product for: Between 3 and 5 years
Hair type:
Dyed hair
Aury recommends this product
Sylvie
Verified purchase
25-01-2025
Disappointed because the coloring is not very colorful
I tried the coloring right away as soon as I received the package. The coloring lasts the first week, but from the second, the complexion fades, the coppery color is less intense and I feel like I did a hazelnut coloring. I don’t recognize myself because I really feel like I did a chocolate shade rather than a copper shade. This is the first time I have this problem!
Translated by Google
Gender: Woman
Age: ---
Country: France
Has been using this product for: Less than 6 months
Hair type:
Copper, Oily, Dyed hair
Sylvie does not recommend this product
Marcela
31-10-2024
The best dye I can use on my hair
As I have very fine hair and little hair due to my health, this has been the best option for me and recommended by a hairdresser.
Translated by Google
Gender: Woman
Age: Between 36 and 50 years old
Country: Portugal
Has been using this product for: More than 5 years
Hair type:
Oily
Marcela recommends this product
Frederico
Verified purchase
11-10-2024
My wife has been using it for many years.
It’s my wife’s favorite.
Translated by Google
Gender: Man
Age: More than 50 years old
Country: Portugal
Has been using this product for: More than 5 years
Vegan
Best prices 
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