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Description
Ingredients
Product Details
What it is:
Guy Tang #MyDentity 40 Volume Permanent Developer is formulated with Guy Tang's favorite Lavender fragrance.
What else you need to know:
- Available in a range of:
- 6V Demi-Permanent Developer
- 10V 40V Permanent Developer
- For all your #mydentity color needs
*Ingredients may vary slightly due to formula updates by brands. Please consult packaging for most accurate list of ingredients
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Frequently Asked Questions
Volume refers to the strength of the developer. Guy Tang #MyDentity 40 Volume is the strongest option, lifting hair up to 4 levels. Use 40 volume for darker hair, maximum lift, or when using high-lift toners. 20 volume is gentler for delicate or previously colored hair, while 30 volume offers a middle ground. Always match the volume to your hair type and desired results.
While Guy Tang #MyDentity developer is formulated with care, 40 volume is the strongest concentration and may be more irritating for sensitive scalps. If you have a sensitive scalp, consider doing a patch test first or using a lower volume (20 or 30) instead. Always follow the mixing ratios and processing times recommended on the package to minimize irritation.
40 volume developer is quite strong and may be too harsh for previously bleached or heavily damaged hair. For pre-lightened or fragile hair, we recommend using 20 or 30 volume developer instead to prevent over-processing and breakage. Use 40 volume only if your hair is in excellent condition and you need maximum lift.