Best Hair Color for Blending Gray Hair: Redken Shades EQ vs. Schwarzkopf IGORA Vibrance

Mirella Manelli in front of Redken Shades EQ vs. Schwarzkopf IGORA Vibrance Demi Permanent Hair Color for blending gray hair

If you’re searching for the best hair color for blending gray hair, you’re not alone. Gray blending has become one of the most in-demand services in salons and choosing the right product can make or break your client’s results.

In this blog, I compare two of the most trusted demi-permanent lines in the industry: Redken Shades EQ and Schwarzkopf IGORA Vibrance. Both are staples in salons worldwide, but how do they actually perform on 50%, 75%, and even 100% gray hair?

Let’s break it all down.

Gray blending using highlights and demi permanant hair color with a side by side comparsion of a before and after hair transformation

What Is Gray Blending?

Gray blending is a hair coloring technique designed to soften and diffuse the appearance of natural gray hair rather than covering it completely. Unlike full gray coverage—which uses permanent hair color to mask every gray strand—gray blending creates a more natural, low-maintenance look by weaving in tones that complement the client’s existing grays.

It’s perfect for:

  • Clients who are starting to go gray and want a subtle transition
  • Those who want to avoid the harsh regrowth line of full coverage
  • Clients looking for low-commitment color with a softer grow-out

By using demi permanent hair color, stylists can add dimension, tone, and depth to gray hair while maintaining its natural beauty. This approach enhances the hair rather than masking it, making gray blending a go-to service for modern, lived-in hair color results.

What Is Demi Permanent Hair Color & Why It’s Ideal for Gray Blending

White gray hair blending

Demi permanent hair color is a low-commitment, no-lift color solution that’s ideal for:

Blending gray hair without full coverage

Enhancing natural tones

Toning highlights

Refreshing faded color

What makes demi permanent color different is its ammonia-free formulas, making it much gentler than permanent color. This is especially important when working with gray hair, which can be coarse, dry, or resistant.

Check out this article about blending gray hair with highlights.

PH Scale for hair color. Alkaline vs Acidic

The Gray Blending Experiment: Acidic vs. Alkaline

In a recent YouTube video (watch it here), I compared Redken Shades EQ (acidic) to Schwarzkopf IGORA Vibrance (alkaline) on gray hair swatches of:

  • 50% gray
  • 75% gray

Each swatch was colored using the manufacturer’s recommended formulas:

  • Shades EQ: mixed with Processing Solution
  • IGORA Vibrance: mixed with 6 Volume Developer (You also have the option of using 13 volume for stubborn gray hair)
Schwarzkopf IGORA Vibrance VS Redken Shades EQ on gray hair swatches

Side-by-Side Results: Which Demi Permanent Hair Color Blends Gray Better?

Redken Shades EQ Results

  • Best shine and tone for 50% gray
  • Slight fading after 15 washes
  • Very gentle and high shine
  • Great for super low commitment gray blending
Redken Shades EQ results chart. Acidic Formula Deposit only with no pigment shift on natural hair Redken Shades EQ is Best shine and tone for 50% gray or less Slight fading after 15 washes Very gentle and high shine

Schwarzkopf IGORA Vibrance Results

  • Stronger pigment and deposit on 75–100% gray
  • Richer color payoff with better longevity after 15 washes
  • Slightly more deposit due to alkaline base
  • Ideal for clients who want longer lasting results without full permanent coverage
Schwarzkopf IGORA Vibrance Results chart. Stronger pigment and deposit on 75–100% gray Richer color payoff with better longevity after 15 washes Slightly more deposit due to alkaline base Ideal for clients who want longer lasting results without full permanent coverage

Longevity Test: 15 Washes Later…

After 15 washes (using a Redken shampoo for EQ swatches and Schwarzkopf shampoo for Vibrance swatches), here’s what stood out:

  • Vibrance maintained more vibrancy and depth, especially on high-percentage gray swatches.
  • Shades EQ faded faster but left the hair feeling soft and glossy.

This test proves that alkaline demi permanent hair color like IGORA Vibrance may have the edge in longevity, while acidic formulas like Shades EQ offer shine and subtlety.

A visual of gray hair washed 15 times to see how well Schwarzkopf IGORA Vibrance VS Redken Shades EQ fade

Common Concerns with Demi Permanent on Gray Hair

Many stylists hesitate to use demi permanent color on 100% gray hair—especially alkaline formulas—for fear of lifting or poor coverage.

Here’s what I found:

  • IGORA Vibrance did not lift the base when used with 6 vol developer.
  • Redken Shades EQ blended well on lower gray percentages, but struggled with full coverage on 100% gray.

So… Which Demi Permanent Hair Color Should You Use for Gray Hair?

The answer depends on your client’s needs. Here’s a quick guide:

A chart comparing Schwarzkopf IGORA Vibrance VS Redken Shades EQ with gray blending
Which demi permanent hair color is best? Schwarzkopf IGORA Vibrance or Redken Shades EQ

Both are amazing tools for stylists. What matters is when and why you use them.

Watch the Full Comparison

Check out the full tutorial + swatch results on my YouTube channel:
👉 Best Hair Color for Blending Gray Hair – Redken vs Schwarzkopf


Final Thoughts: Mastering Gray Blending with Demi Permanent Color

When it comes to choosing the best demi permanent hair color for blending gray hair, it’s not about finding one “perfect” product—it’s about understanding how they work.

Whether you’re looking for long-lasting gray coverage or soft, shiny toning, both Shades EQ and IGORA Vibrance deliver amazing results when used with the right technique.

If you’re a hairstylist ready to elevate your gray blending services, don’t forget to subscribe to my YouTube Channel for more tutorials, tips, and product breakdowns.


Want to Master Gray Blending Techniques as a hairstylist? Join Hair B&B University!

If you’re a hairstylist or cosmetology student looking to refine your highlight techniques, Hair B&B University is your ultimate education platform. Inside HBBU, you’ll get:

  • Step-by-step tutorials on foil placement that impact how highlights blend.
  • In-depth breakdowns of each highlighting technique.
  • Insider tips on achieving perfect blends, seamless transitions, and high-impact color.
  • Business & pricing strategies to boost your success behind the chair.
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Hey, I'm Mirella

Hair Educator, Podcaster, YouTube Sensation, and Entrepreneur with over 20+ Years Experience

I help hairstylists, like YOU, simplify your skills and achieve your business goals. I have a ton of great resources on my website from blogs & podcast to online education, I’ve got you covered!

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