Professional lash and brow tint colours need to be mixed with a developer. Different colour systems require a different developer – use this chart to check compatibility.
| THESE TINT COLOURS… | ONLY WORK WITH… |
 Refectocil Tint Colours (Numbered 1.0 to 4.1) |  Refectocil Cream Oxidant (3%) or Refectocil Liquid Oxidant (3%) |
 Refectocil Blonde Brow Bleaching Paste |  Refectocil Cream Oxidant (3%) |
 Intense Browns Colours (Black Brown, Ash Brown, Dark Brown, Chocolate Brown) |  Intense Browns Activator Gel |
Important:
- Developers are not changeable between tint ranges. Eg: Tint Colour Blue #2.1 only works with Liquid/Cream Oxidant, it will not work with Intense Browns Activator.
- Colours and developers are always sold separately as is the nature of all professional colour ranges.
- Please choose your colour and developer carefully. There are no returns, refunds or exchanges for opened products.