The basics An innovative color spray solution designed to disguise areas of thin or thinning hair, scalp show-through, bald spots and root re-growth between color appointments. The benefits This lightweight, long-lasting hair thickener is gentle on the scalp, safe for everyday use and available in 5 shades that resist wind, rain, and perspiration.  The uses Instantly fills in thinning areas. Gives the appearance of fuller, thicker hair. The bottom line Recommended to cover wider areas of thinning, scalp show-through and even bald spots.