L'Oréal Professionnel Blond Studio 9 Bonder Inside – Bleaching Powder 500 g

Up to 9 levels of lift with integrated bonder
Professional bleaching without compromise, tested in the Celebre Store salons – hairdressers for four generations (since 1914).

Extreme Lightening + Maximum Fiber Protection

Blond Studio 9 Bonder Inside is the L'Oréal Professionnel professional bleaching powder with a high concentration of persulfates and alkaline agent, capable of achieving up to 9 levels of lift.
The innovative formula integrates the bonder complex (citric acid + glycine), which protects both strong and weak bonds in the hair fiber throughout the lightening process.

Ideal for advanced techniques such as balayage, extreme lightening or high-performance creative services.

Key Features

• Up to 9 levels of lift

• Integrated bonder for maximum bond protection

• Exclusive oil activators with 17% internal oils

• Improved hair feel and appearance after lightening

• Low-volatility texture, even mixing, maximum adherence

• Perfect for advanced professional color & lightening services

• Faster and safer results, even on extreme lightening

Why Professionals Love It

• Brighter, controlled and even lightening results

• Softer hair compared to traditional bleaches

• Stable application and easy to manage

• Highly professional formula with enhanced bonder agents

• Suitable for French Balayage, French Balayage Shadow and bold transformations

Pro Services with Blond Studio 9 Bonder Inside

Perfect for high-transformation #LorealPro services such as:

Step 1 – Lightening: Blond Studio 9 Bonder Inside for a perfect, even lightening.
Step 2 – Glossing: Dia Light at acidic pH to neutralize undertones and improve cosmetic finish.
Step 3 – Final protection: Metal Detox to preserve the fiber and prolong results.

Professional Use Instructions

Use only with L’Oréal Professionnel Oil-Developers at 20 or 30 volumes.

Processing time: up to 50 minutes
Mixing ratios:

• Full head (near roots): 1:2 → 1:3 with 20 vol

• On foils: 1:1.5 → 1:3 with 20 or 30 vol

• Freehand / open-air: 1:1 → 1:2 with 20 or 30 vol

Important:

• Do not use heat sources.

• Use only with L’Oréal Professionnel sweet mèches, quick mèches or easy mèches.

• For foils, use exclusively certified L’ORÉAL SOFT ALLOY sheets.

• Do not exceed 50 minutes processing time.

• Do not gather hair into a bun.

• Use a maximum of 20 vol near the roots.

Safety Warnings

(Hair coloring products can cause allergic reactions. We faithfully reproduce the official L’Oréal text.)

• Read and follow the instructions carefully.

• Do not use on persons under 16 years.

• Temporary black henna tattoos may increase the risk of allergy.

• Do not use in case of scalp irritations or sensitivity.

• Wear suitable disposable gloves.

• Avoid contact with eyes; rinse immediately if contact occurs.

• Keep out of reach of children.

• Perform the allergy test 48 hours before.

Ingredients

Potassium persulfate, sodium silicate, ammonium persulfate, magnesium carbonate hydroxide, sodium metasilicate, sodium stearate, citric acid, paraffinum liquidum / mineral oil, glycine, sodium lauryl sulfate, disodium edta, hydroxyethylcellulose, acrylates/c10-30 alkyl acrylate crosspolymer, ci 77007 / ultramarines, kaolin, silica [nano] / silica, aqua / water, sodium citrate (f.i.l. n284877/5).

FAQ – Frequently Asked Questions

Is it suitable for extreme lightening?

Yes, Blond Studio 9 Bonder Inside is L’Oréal’s product with the highest lightening power: up to 9 levels of lift.

Is an external bonder required?

No, the bonder is already integrated into the formula.

Is it suitable for techniques like balayage and freehand?

Absolutely. The stable texture and optimal adherence make it perfect for French Balayage and creative work.

Does hair remain soft after bleaching?

Yes, the oil activators and the integrated bonder maintain a better hair feel compared to traditional powders.

Which developer should I use?

Exclusively L’Oréal Professionnel Oil-Developers at 20 or 30 vol.