Georgia Cosmetologist License Practice Exam

Permanent color is the recommended choice for effectively covering greys because it provides a long-lasting solution that fully penetrates the hair shaft. This type of color treatment chemically alters the hair structure, allowing for complete grey coverage and ensuring that the color does not wash out over time. Permanent hair color can lift and deposit color in one step, making it ideal for those looking to cover grey hair thoroughly and effectively.

Demi-permanent color is useful for providing natural-looking results and can blend greys, but it does not fully cover them and typically lasts for about 20 to 28 shampoos. Temporary color is designed for short-term use and washes out quickly, making it impractical for those seeking a more permanent solution to grey coverage. Highlighting techniques brighten the hair and may camouflage greys, but they do not cover them completely. Therefore, for anyone seeking to effectively eliminate grey hair, permanent color remains the most suitable option.