Henri Roche 12 Piece Safari Colors We are frequently asked why Henri Roche pastels are so expensive. Its pretty simple, Henri Roche pastel sticks are virtually pure pigment sticks. You will find that Henri Roche pastels are very unique in color, texture and feel. Henri Roche pastels are formulated with a greater concentration of pigment then most pastels. Roche pastels will feel like painting with pure, unadulterated, saturated pigments.