It can happen that clothes, cushions or others materials discharge their colour on a leather sofa of chair. The cleaning procedure depends of the level of the impregnation of the dye. To eliminate these stains Valmour recommends to proceed gradually :

1- At first, clean with the Cleaning Renovating Soap AVEL. Apply with a sponge. This non-alcaline soap has been developed especially for furniture and obtains very good results. Also useful for everyday leather care.
2- If the result is not satisfactory, use the RENOMAT which is a more powerful product.
3- If it is still not sufficient, opt for the Stripper Saphir. This product contains acetone and turpentine (among others) and will be efficient, but might provoke discolouration of the original shade. A partial or complete re-pigmentation of your sofa might be necessary. 
4- After the cleaning, nourish your leather with the Liquid  Renovating Balm in neutral or in the same shade as the leather. You can also use the Cream Renovator, which is richer in colour-pigments.

Remarks :
- for leather re-pigmentation (for example after using the Stripper Saphir), choose between the Renovating Cream Saphir (see advice  cards "Re-colour a tear") for small surfaces, and the Pigmenting Cream AVEL (see  "Re-pigment a leather Sofa" ) for larger surfaces.