Yes, you can use 20 volume developer with toner, but it's not always recommended. The appropriateness depends heavily on your hair's condition and the desired outcome.
Understanding Volume Developers
Volume developers (like 10, 20, 30 volume) determine the level of lift and potential damage during a hair coloring process. Higher volume developers lift hair color more aggressively, leading to more potential damage.
- Lower Volume (10 Volume): Ideal for depositing color, minimal lift, less damage. Often used with toners to correct minor color variations or add shine.
- Higher Volume (20 Volume and above): Provides more lift, suitable for lightening or significantly changing hair color. Increases risk of hair damage.
Using 20 Volume with Toner: A Case-by-Case Analysis
While some sources suggest using 20 volume with toners for certain results (e.g., achieving a more significant color change), others strongly advise against it. The key considerations are:
- Hair Condition: If your hair is already damaged or bleached, using 20 volume can cause further harm. One user reported success using 20 volume with toner on bleached hair, but this is anecdotal and may not apply to all situations. ([Reference 1])
- Desired Result: If you only need subtle color correction or want to add shine, a lower volume developer (like 10 volume) is safer and usually sufficient. ([Reference 2, Reference 6, Reference 7, Reference 9, Reference 10])
- Toner Type: The specific toner's instructions should always be followed. Some toners are designed to be used with higher volume developers, while others are formulated for lower volumes. ([Reference 3])
Potential Risks of Using 20 Volume with Toner:
- Increased risk of hair damage, dryness, breakage. ([Reference 4, Reference 8])
- Reduced toner longevity. ([Reference 4])
- Unpredictable results, potentially leading to unwanted color changes. ([Reference 5])
Best Practices:
- Always follow the instructions on your toner and developer packaging.
- Consider your hair's current condition; if damaged, choose a lower volume developer.
- If unsure, consult a hair professional for personalized advice.
