- Get Volume So Loud The Neighbors Might Complain - Nourishing volume conditioner with keratin, biotin, and chia seed oil gives fine hair life! Biotin, known as Vitamin B7, strengthens and reinforces hair health by delivering essential nutrients you won't find in other fine hair products. Hydrolyzed keratin reduces frizz and flyaways. Chia seed oil acts as a hair thickening agent and aids in achieving a fuller, more voluminous look.