They tame leftover frizz and flyaway hairs to make it easier to straighten your. Oz, 60 ml 4.3 out of 5 stars 8,494 Suave Professionals Smoothing Hair Serum, Keratin Infusion This hair serum might have a lightweight texture, but it does a great job at controlling frizz, softening hair, adding shine, and protecting against heat damage. Hair straightening serum . Hair straightening is a hair styling technique used since the 1890s involving the flattening and straightening of hair in order to give it a smooth, streamlined, and sleek appearance. A straightening serum is great for that fresh blowout style. Hair serum is typically for people with dry, wavy or curly hair that is medium to long length. Giovanni straightening elixir is an all natural organic product that tames the unruliest hair and promises to make it manageable. Hair serums are silicone based products that leave your hair smooth, hydrated, and shiny. A few drops really goes a long way. Chemical processin...