Eugene Perma Attentive Permanent No.1 is for resistant natural hair and provides a perfect balance between the root and tip of the hair, giving long-lasting softness. Versatile permanent, alkaline with ammonia. Contains Bioextender Marina, rich in trace elements, which consolidate the structure of the hair fiber, improving its mechanical properties. A perfect balance of the nerve of the curls is achieved with the softness and duration of the perm.