TIGI S-Factor is a high-end line of TIGI haircare products that includes TIGI S Factor shampoo, TIGI S Factor conditioner and styling products. TIGI S-Factor brings the best out of every type of hair as it fights frizz in curly hair, smoothes out straight hair, protects hair color vibrancy, calms dry, coarse hair and protects from humidity. TIGI S-Factor adds a lustrous shine to every hairstyle and enhances the quality and strength of your hair while it cleans. A popular product is the TIGI S Factor Smoothing Lusterizer. Get spectacular results from these products without the visible evidence of S Factor hair products in your hair.