If you carry out a lot of tone on tone work Affinage recommends that you use AFFINAGE SATIN for a full Tone On Tone service. Unique conversion concept, changes permanent colour to tone on tone effect. Doubles the value of your permanent colour stock Your permanent colour range now becomes your tone on tone range. Ideal progression from tone on tone to permanent colour (same shade) Works on any permanent tint 20-25mins developing time Highly effective stock control 2 products from one range. Keeps stock value down.