KENRA PROFESSIONAL® 4RB Red Brown Permanent Hair Color
KENRA COLOR® Permanent Coloring Creme from KENRA PROFESSIONAL® delivers high-quality, high-performance haircolor that is easy to use and provides consistent, reliable results.
- Full gray coverage up to 100%
- Vibrant, long-lasting color with high saturation
- Up to 2X intense shine
Shade Information
| Color Level | Base Tone | Undertones |
|---|---|---|
| Level 4 (out of 1 to 10) | Red | Brown |
Kenra Color incorporates Balancing Complex 5, a proprietary blend of five essential haircolor attributes, including vibrant, long-lasting color and enhanced shine.
FAQ
What is the shade level of 4RB Red Brown?
The 4RB Red Brown shade lives at level 4 out of levels 1 to 10, with a dominant red base and secondary brown undertones.
Does this color cover gray effectively?
Yes, it provides full gray coverage up to 100%.
How does the shine compare to other shades?
It delivers up to 2X intense shine compared to natural hair.

Dylan Robertson –
The color applied evenly and covered my gray hair completely. The red base with brown undertones is natural-looking and stays vibrant for weeks. The shine is noticeably stronger after just one application.
Ryan Wallace –
Great coverage and a balanced red-brown tone. It looks more natural than some other shades I’ve tried. The shine is impressive, especially on previously treated hair.
Stephen Turner –
I’ve used this shade for two months now and it still looks fresh. The color holds well and doesn’t fade quickly. The application is smooth and easy to manage.
Nicola Reid –
The red base is strong but not overpowering. The brown undertones give it a warm, balanced look. It’s perfect for medium-length hair with gray.
Una Buckland –
This is my go-to shade for gray coverage. The color is rich and long-lasting. I love how it enhances the natural texture and adds shine without looking artificial.