The Roots Brown Combs Are Made From Cellulose (Plant Based Extract) Acetate, Which Helps Cut Down On Static Resulting In Lesser Frizz And Flyaways. This Material Also Makes These Combs Hypoallergenic Which Means They Are Skin Friendly And Will Not Cause Any Form Of Allergy On Any Skin Type. Moreover, The Combs Are Seamless, Which Means They Have Smoothened And Rounded Tips That Massage The Scalp And Stimulate The Natural Oils And Smoothened Teeth Edges To Prevent Scraping Of The Hair Cuticles And Scalp While Styling Dry/Wet Hair.