* Your current hair color: Darker hair needs higher volume developer to lift more pigment.
* Your desired level of blonde: Going from dark brown to platinum blonde requires higher volume than going from light brown to light blonde.
* Your hair's health and porosity: Damaged or porous hair processes color faster and is more susceptible to damage, so a lower volume developer is recommended.
* The type of lightener or dye you're using: Different products may require different developer volumes. Always refer to the manufacturer's instructions for the specific product you're using.
Here's a general guideline, but always do a strand test first to assess how your hair reacts:
* 10 Volume: Used to deposit color only, add tone, or refresh existing color. Minimal lift. Good for delicate or damaged hair when minimal change is desired.
* 20 Volume: Lifts 1-2 levels. Commonly used for covering gray hair, subtle lightening, and depositing color. A good all-around choice for most situations.
* 30 Volume: Lifts 2-3 levels. Used for more significant lightening, but also more damaging. Use with caution, especially on previously processed hair.
* 40 Volume: Lifts 3-4 levels. Strongest developer, used for dramatic lightening. High risk of damage, especially on dark hair or previously processed hair. Generally only recommended for experienced colorists and healthy hair.
Important Considerations:
* Strand Test: Before applying any color to your whole head, perform a strand test. This will help you determine the processing time and the developer volume that works best for your hair without causing excessive damage.
* Professional Consultation: If you're unsure about which developer to use, consult a professional hairstylist. They can assess your hair's condition and recommend the best approach to achieve your desired blonde shade safely.
* Hair Condition: Prioritize the health of your hair. If your hair is already damaged, avoid high-volume developers. Focus on repairing your hair before attempting a drastic color change.
* Bleach vs. Hair Dye: To achieve blonde, especially from darker shades, you will likely need to use bleach (also called lightener) rather than a permanent hair dye. Hair dye is designed to deposit color and may not lift dark hair to a blonde shade.
In summary, there is no single "best" developer for dyeing hair blonde. The ideal choice depends on individual hair characteristics and the desired outcome. Always prioritize hair health, follow product instructions, and consider a professional consultation if you're uncertain.