20 Volume Developer

Treat yourself. FREE GIFT with Every Purchase Over $55 – Don't Miss Out!

*Experience the Magic of Christmas with Our Exclusive Hair Gifts, yours when you Spend Over $55.

  • Regular price $5.00

Order Before 3pm Weekdays For Same Day Dispatch
$5 Standard Aus Shipping Over $50
Free Aus Shipping Over $70

I am an essential when Colouring because I activate the Hair Colour when you mix us together. I'm not that strong, I will Lighten your Hair 2 Shades so I'm not the Developer for huge Colour transformations. Instead, use me for smaller Colour transformations like lightening from 5 Light Brown to 7 Medium Blonde or 6 Dark Blonde to 8.44 Intense Copper Blonde or 3 Dark Brown to 5 Light Brown. But, if you have 50% or more Grey Hair, I am your soul mate. My Developer formula is designed specifically to grab to your stubborn Grey or White Hairs for the best Grey coverage.

Save with Two and Four Developer Packs

What's included?

1 x 100ml 20 Volume Developer

Need help with your Hair? Chat with our Colour Consultants



2 3 4

2 Shades




to use





1 part Hair Colour with 1.5 parts Developer.
eg. 1 Tube of Hair Colour with 1 Bottle of Developer.

How to Colour your Hair

Step 1: Mix

Mix Permanent Hair Colour and Developer in a plastic or glass bowl until a smooth and creamy paste is achieved.

Step 2: Apply To Dry Hair

Starting at the regrowth area, apply the Colour carefully and evenly to dry Hair. Massage Colour through the Hair wearing protective gloves to ensure even coverage.

Step 3: Developing Time

Once the Colour has been applied to the Hair, leave in Hair for 35 to 40 minutes to Develop. We suggest allowing the High Lift Series (901, 902 and 908) 45 minutes to develop.

Step 4: Rinse your Hair

Once the development time has been reached, rinse the Hair for 3 to 5 minutes in warm water until water runs clear. Condition Hair as normal.

How Much Colour Will I Need?

For Short Hair / Colouring Regrowth

1 x Permanent Hair Colour.
1 x Developer.

For Long Hair / Thick Hair

2 x Permanent Hair Colour.
2 x Developer.

20 Volume Developer Reviews