The Lascaux Brush Cleaner is a water-based product which achieves its results through surface-active substances. The product contains no solvents, phosphates, acids or caustic alkalis and is biologically degradable.

Lascaux Brush Cleaner is extremely economical: it is usually diluted with water in a 1:1 mixture or used in a weak solution of as little as 3% (30ml of Lascaux Brush Cleaner to 1 litre of water). Undiluted application is only necessary for heavily encrusted deposits of old paint.