An acetic-acid botanical infusion (0.2–0.9%) that supports the low pH that flattens the cuticle — shine by chemistry, not by promise.
A heritage rinse, formalised: acetic acid plus a botanical infusion (Provital Herbal Vinegar MS), carried in Tara's onion and rosemary wash lines at 0.2–0.9%.
The mechanism: hair fiber is happiest at acidic pH — low pH keeps the cuticle scales flat, which reads as smoothness and shine. Vinegar rinses are the oldest version of this chemistry.
What it does not do: it does not treat dandruff and does not grow hair. Its role is pH support and cuticle smoothness — stated at its tier, nothing more.