It Uses 40% Rosemary Oil – Clinically Shown to Match Minoxidil
A 2015 study published in SkinMed found rosemary oil performed as well as 2% minoxidil for regrowth over six months, without the irritation or side effects.
WellaNaturals uses a 40% concentration (one of the highest available) so you get a clinical strength formula that actually works, in an oil gentle enough for daily use.