eufora color COLOR CONTROL DROPS fight warmth in any lightening, color, or conditioning treatment. This high-grade pigments now resist lightener’s degrading effect but remain gentle for various professional services. Adaptability is key – add them to any masque, demi-permanent color, oxidative color, or lightening treatments. Say goodbye to warmth with ease! The blue drops banish brassy copper tones while the purple drops combat yellow gold tones.