What Is Wella Professionals Blondor Multi Blonde Powder?
Wella Professionals Blondor Multi Blonde is a premium lightener designed for reliable lightening, suitable for all bleaching techniques, from full head bleach to highlights and balayage. Its formula contains anti-yellow molecules to help reduce oranges and neutralize warmth during the lightening process, giving you more control over your desired result.
Key ingredients include:
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Potassium persulfate – primary lightening agent
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Magnesium carbonate hydroxide – enhances lift and conditioning
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Xanthan gum – gives the mix a creamy texture for a smooth application, suitable for all hair types
The powder is dust-free and mixes easily with Wella Welloxon developer for smooth application and reliable lift.
Wella Blondor Mixing Ratio and Developer
The mixing ratio for Blondor Multi Blonde is typically 1:1.5 to 1:2 (powder: developer), depending on your desired consistency and lifting strength. For dry hair, the creamy mix ensures even on-scalp application and excellent saturation.
Choose the Right Developer:
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20 Vol (6%) – Gentle lift for on-scalp lightening or subtle brightness
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30 Vol (9%) – Moderate lift, often used for darker bases
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40 Vol (12%) – Maximum lift for off-scalp applications only
💡 The Welloxon developer promises optimal performance with the Blondor range, maintaining stability and enhancing shine.
How to Mix Wella Blondor Bleach Powder
Here’s a step-by-step guide on how to use the Blondor Multi Blonde powder:
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Use a non-metallic bowl and a tinting brush.
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Mix 1 scoop of Blondor Multi Blonde Powder with 1.5 to 2 parts Welloxon developer.
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Mix until you achieve a creamy texture, free of lumps, for smooth application.
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Be sure to wear suitable gloves.
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Use immediately after mixing for best results.
Common Mixing Mistakes to Avoid
Even small mistakes can affect the final outcome, so here are a few key things to watch out for:
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Never use a metal bowl - Metal can interfere with the bleach due to reactions with ingredients like sodium silicate and sodium stearate. Always stick with a non-metallic option.
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Don’t eyeball measurements - Getting the ratio wrong can cause uneven lightening or unnecessary damage. Always measure both bleach and developer accurately.
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Make sure your mix is smooth - Lumps or uneven blending can lead to patchy application and inconsistent results.
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Use the right developer volume - Going too strong, like using 40 volume on fragile hair, can cause serious damage. Consider your hair’s condition and color history before deciding.
Following these guidelines not only helps you avoid mistakes but also ensures your bleach performs at its best while keeping your hair’s integrity intact.
Application Tips for Best Results

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Apply to dry hair for optimal performance.
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Section the hair properly to ensure the bleaching mixture evenly covers all strands.
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Always apply bleach away from the scalp unless the formula specifically allows for on-scalp use.
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Carefully check hair every 5–10 minutes during processing to avoid over-lightening.
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For best tone control, use Wella Professionals Blondor shade references or portfolio shade charts.
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If lightening very dark hair, multiple sessions may be needed to achieve your desired degree of lift.
Development Time
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Maximum total development time is 50 minutes.
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Development time depends on the peroxide strength, hair condition, and the desired shade.
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Always check hair regularly and do not exceed the recommended development time.
Aftercare and Toner
Once the lightening process is complete:
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Immediately rinse with slightly warm water.
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Shampoo hair thoroughly with a color-safe shampoo.
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Apply Blondor Blonde Seal—a post-treatment product from Wella Professionals Blondor line—to stabilize pH and close the cuticle.
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Use a toner (e.g., Koleston Perfect or Color Touch) to refine the tone based on the blonde spectrum gently achieved.
Regular conditioning and hair care after treatment will help increase shine and prevent damage.
Safety and Precautions
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Perform a patch test before use to check for any unexpected reaction.
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If an adverse reaction occurs (such as itching, burning, or swelling), stop immediately, avoid contact, and seek medical advice.
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Avoid contact with the eyes and skin. If contact occurs, rinse immediately.
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Always wear suitable gloves and use in a well-ventilated space.
Expert Tips for First-Time Bleachers

If you’re new to bleaching, don’t worry—these expert tips will help you feel more prepared and confident throughout the process:
Do a Strand Test First - Always test a small section of hair before going all in. It gives you a sneak peek at how your hair will react to the bleach—and lets you tweak things like processing time or developer strength if needed.
Don’t Skip the Toner - After bleaching, a toner is key to canceling out any unwanted yellow or brassy tones. It helps you achieve that clean, natural-looking blonde rather than an uneven or overly warm result.
When in Doubt, Ask a Pro - Lightening can be tricky, especially if it’s your first time. If you’re unsure about anything—from peroxide strength to toner selection—it’s better to check in with a professional. It can prevent damage and ensure better, more even results.
Summary
By following this guide and choosing selected Wella Professionals Blondor products, you’ll be able to create beautiful, consistent results across the full blonde spectrum, while preserving hair health and strength. Whether you're working toward platinum, ash, or honey blonde, Wella Professionals offers a perfect colour solution, including bleaches, developers, and toners to lock in results.
Frequently Asked Questions
How do I choose the right developer strength for my hair?
Go for 20 Volume (6%) if you want a subtle lift, 30 Volume (9%) for a medium lift, and 40 Volume (12%) for a high lift. Just be sure to check your hair’s condition first—keeping it healthy is key to great results!
What is the correct mixing ratio for Wella Blondor Bleach Powder?
Mix 1 part bleach powder with 1.5 to 2 parts developer. Always use a non-metallic bowl to get the best results!
How long should I leave Wella Blondor on my hair?
Leave it on for up to 50 minutes, but check your hair every 5-10 minutes to get the lift you want without over-processing.
How can I avoid common mixing mistakes?
Use a non-metallic bowl, measure your bleach and developer carefully, and mix until smooth and clump-free. Avoid using too high a developer volume to protect your hair from damage.
What should I do if I experience uneven lightening?
Reapply bleach to the darker spots, making sure to cover evenly. Follow up with deep conditioning to keep your hair healthy and moisturized.