Head & Shoulders 2-in-1 Tea Tree

Head & Shoulders Tea Tree Oil 2-in-1 is a pyrithione-zinc anti-dandruff wash that Nina Pool has recommended in hair-growth conversations. It is still a dandruff shampoo, not a growth drug. Commenters on the original clips argued about shedding, so a patch test is the sober move before you commit to a twin pack.

Influencer

Nina Pool

Endorsed as

Hair-growth shampoo mention

Dupe for

Salon scalp-growth systems

Typical price

Usually under $25 for a twin pack