True neutral blue color: Achieves a classic, vibrant blue look for standout hair
Semi permanent formula: Provides long-lasting color with minimal maintenance
Vegan and cruelty free: Ethical choice for conscious consumers
PPD and ammonia free: Reduces risk of irritation and is suitable for sensitive users
Conditioning benefits: Helps maintain hair health during and after coloring
Summarized by Shop
GUILT-FREE GLAMOUR!® Rockabilly Blue is one of our strongest true, neutral blue hair dyes. This vibrant, ultra-powerful blue leaves cool tones on virgin, unbleached hair. For head turning results, we recommend lightening hair to a light level 9 blonde and toning hair before use to prevent unwanted hues.
Details:
Style: Classic Semi-Perman
Color
Blue
Volume
118 ml (4 fl oz) and 237 ml (8.5 fl oz)
Duration
4-6 weeks for best results
Application
Semi permanent
Free from
PPD and ammonia
Target gender
Unisex
Summarized by Shop
4.6
33 ratings
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1
This is amazing!
This color is very vibrant, and it leaves my hair feeling really soft!
Naisean · July 17, 2026
My favorite shade of blue hair color! So vibrant and long lasting.