Swell Ultimate Volume 3-Step System is the beyond-hype natural range for fine & thinning hair loved by beauty editors, celebs & professional stylists. Designed by fine hair experts, Swell eschews Silicones, SLS, Parabens & other petrochemicals. Instead, natural bioactives from around the world have been carefully sourced to bring root to tip Ultimate Volume & Growth to limp & lifeless hair. 97% Natural Source. No Silicones. No SLS. No Parabens. Suitable for Vegans.