SYOSS Oleo Intense Hair Colour 10-50 ‘Ash Blonde’ is an ammonia-free permanent oil-based hair colour from Syoss Oleo Intense 10–50 Ash Blonde, available in a handy 50 ml pack. This product delivers an intense, long-lasting blonde shade with a cool, ash undertone, whilst also caring for your hair both during and after colouring.

🌟 Product description

• A permanent oil-based hair colour with an innovative formula and PLEX-IN-OIL technology, which helps the colour pigments penetrate deep into the hair.

• Ash blonde shade (10-50) – a light, cool blonde tone with a natural effect.

• Ammonia-free – the hair is coloured more gently than with traditional permanent dyes containing ammonia, and has a more pleasant scent.

• Mask with 4 Japanese oils – nourishes and leaves hair soft and shiny, acting as a protective shield after colouring.

• 100% grey coverage + long-lasting colour and rich results for several weeks.

✨ Key features

✔️ Intense, long-lasting ash-blonde shade
✔️ Permanent colour with nourishing oil technology
✔️ Ammonia-free – gentler on the scalp
✔️ Professional grey
coverage ✔️ Hair looks healthy, soft and shiny after colouring

🧪 Ingredients (INCI – for guidance only)

(The exact list is provided on the product packaging and may vary by batch.)

🔹 Hair colour cream

• Aqua (Water/Eau) – water

• Cetearyl Alcohol – fatty alcohol, consistency stabiliser

• Ethanolamine – an alkaline ingredient used as a substitute for ammonia

• Coconut Alcohol

• Sodium Laureth-6 Carboxylate, Sodium Myreth Sulphate – emulsifiers

• Bis-diisopropanolamino-PG-propyl Dimethicone – stabilising polymer

• Acrylamidopropyltrimonium Chloride/Acrylates Copolymer – conditioner

• Coco-Glucoside, Glyceryl Oleate – surfactants and moisturising ingredients

• Paraffinum Liquidum – mineral oil

• Parfum (Fragrance) – fragrance

• Sodium Sulphite, Potassium Hydroxide, Citric Acid, Ascorbic Acid – pH stabilisers and antioxidants

• Toluene-2,5-Diamine Sulphate, Resorcinol, m-Aminophenol, 2,4-Diaminophenoxyethanol HCl – active colouring pigments

• Phenoxyethanol, Benzyl Alcohol, Methylparaben, Ethylparaben – preservatives
  (…and other excipients to ensure the consistency and stability of the formulation)

🔹 Developer

• Aqua (Water/Eau)

• Paraffinum Liquidum – mineral oil

• Hydrogen Peroxide – hydrogen peroxide to activate the colour

• Cetearyl Alcohol, PEG-40 Castor Oil – emulsifiers

• Sodium Cetearyl Sulphate, Etidronic Acid, Potassium Hydroxide – stabilisers

🔹 Rich oil treatment (masks / post-colour conditioner)

(According to some sources, it contains a nourishing blend of oils and conditioners that leave hair soft and shiny – the ingredients listed depend on the specific product version.)

🚿 How to use

1. Read the instructions and carry out an allergy test as per the package leaflet (48 hours before colouring).

2. Mix the colour cream with the developer in the correct ratio.

3. Apply to dry, unwashed hair from the roots to the ends.

4. Leave the colour to work for the recommended time (usually around 30 minutes).

5. Rinse thoroughly and use the enclosed mask/conditioner to leave your hair soft and shiny.

⚠️ Safety warnings

• Hair dyes can cause allergic reactions – always carry out an allergy test 48 hours before use.

• Contains hydrogen peroxide, phenylenediamines and resorcinol – do not use if you have irritated skin or allergies.

• Do not use on eyebrows or eyelashes – it may cause serious reactions.

• Avoid contact with the eyes; if the dye gets into your eyes, rinse immediately with water.

• Keep out of reach of children.

📌 Summary

Syoss Oleo Intense 10–50 Ash Blonde is an ammonia-free permanent hair colour with oil technology that gives hair an intense ash blonde shade, 100% grey coverage and long-lasting colour, whilst the colour formula and aftercare leave hair soft, shiny and healthy-looking.