Hair condition and hair growth are different processes.
The visible hair shaft is a fiber. Conditioning ingredients can change its lubrication, moisture behavior and mechanical properties. These changes affect how hair feels and handles.
New hair growth happens within the follicle. Evidence about a stronger fiber cannot, by itself, prove increased growth.
Root Revival’s ingredient story brings these areas into focus: castor oil for conditioning, panthenol for fiber care and rosemary as a botanical with published hair research.