Yes To Cucumbers Color Care Shampoo. Because they are packed with vitamins A and C, organic cucumbers help strengthen hair, but are gentle enough to keep color intact. Centaurea extract that locks in all that hard-earned color. 99.8 percent natural product. Free of petroleum and SLS. Paraben-free, naturally. Cruelty free. Massage into hair and scalp with fingertips, paying particular attention to the hairline where dirt can collect. Rinse thoroughly. Repeat if necessary.