As a developer, this product matches perfectly with the Matrix ColorInSider colour line. The oil-cream texture gives you more control when applying compared to a thin, watery peroxide.

• Mix ratio 1:1 with ColorInSider colour cream
• Thick texture won’t run during application
• Hair feels softer and is easier to comb
• Available in 10 Vol (3%), 20 Vol (6%) and 30 Vol (9%)
• 10 Vol for colour deepening or subtle tone correction
• 20 Vol for standard grey coverage and lightening
• 30 Vol for more lift on dark hair
• Suitable for fine hair needing gentle lift

1. Choose the right variant: 10 Vol for darkening or small tone correction, 20 Vol for grey coverage, 30 Vol for more lift.
2. Mix the developer and Matrix ColorInSider colour cream in a 1:1 ratio.
3. Stir well until you have a smooth cream without streaks.
4. Apply the mixture on dry or slightly damp hair and distribute evenly through the ends.
5. Leave the colour on for the recommended time, then rinse thoroughly with water.

After colouring, your hair is extra prone to dryness. The Biolage Oil Renew Multi-Tasking Cream nourishes your hair post-colour and makes it easier to comb immediately.

The cream activates the colour pigments in the ColorInSider dye and opens the hair cuticles just enough to let the colour penetrate deeply. This works because the formula is perfectly matched to the ColorInSider system. Glycerine holds moisture in the cream, reducing hair dryness during the colouring process. The oil-cream texture is also gentle on sensitive scalps, feeling less harsh than watery peroxide. Thanks to this balance, the Matrix Oil-Cream Developer works for fine hair as well as previously coloured strands. If you want reliable, even colour results, this is the developer you need.

Choose 10 Vol (3%) if you want to darken your hair or make a subtle tone adjustment. This volume offers the gentlest lift and is the softest on hair.

If you want to cover grey hair well or lighten your colour by one to two shades, choose 20 Vol (6%). For dark hair aiming for a noticeably lighter shade, 30 Vol (9%) is the right pick. Keep in mind that higher volumes give more lift but also put more strain on the hair.

The 10 Vol (3%) variant is the safest choice if your hair is previously bleached or damaged. The low peroxide concentration offers mild lift and is less stressful for hair.

However, this developer doesn’t repair structural damage. If your hair is fragile or porous, the oil-cream texture gives a smoother feel during colouring but doesn't restore damaged structure. If you want to actively protect hair during colouring, consider a developer with a built-in bond-builder, like some premium options. For normal to mildly damaged hair, the Matrix ColorInsider Oil-Cream Developer - 1000ml works great.

This developer is designed specifically for Matrix ColorInSider and works best with that colour line. Using other Matrix dye lines like SoColor? Then check the Cream Developer, which has broader use.

Using a different brand? It’s best to use that brand’s corresponding developer. Each developer matches its colour’s formula, and mismatching can cause unexpected colour results or uneven coverage.

The Matrix ColorInsider Oil-Cream Developer - 1000ml stands out with its thick, oil-rich texture. It won’t drip, spreads easily, and feels gentler on the scalp than thin, watery peroxide solutions. This makes it user-friendly, especially for delicate colouring techniques.

Compared to premium developers with built-in bond-builders, there is one difference: the ColorInSider developer focuses on texture and colour performance, not active hair repair. For repair, developers with plex technology are a better choice.

The Matrix ColorInsider Oil-Cream Developer - 1000ml is your best pick if you work with ColorInSider dye and want a reliable, easy-to-use developer. For severely damaged or overprocessed hair needing active protection during colouring, developers with bond-building technology are more suitable.

Aqua / Water / Eau, Paraffinum Liquidum / Mineral Oil / Huile Minerale, CeTearyl Alcohol, Hydrogen Peroxide, STeareth‑20, Peg‑4 Rapeseedamide, Glycerin, Phosphoric Acid, Polyquaternium‑6, Hexadimethrine Chloride, Tocopherol, Tetrasodium Etidronate, Tetrasodium Pyrophosphate, Sodium Salicylate, Tetrasodium Edta

We recommend always checking the ingredient list on the packaging for the most accurate information before use. Due to product updates and optimisations, ingredients listed here may differ from those on the packaging.