This is a bond builder. Vital for tight coils 4B,4C fine strand hair...try it PLEASE." —LAValentine Get it from Amazon for $30 (also available in bundles with other Olaplex products).

Since I have 4B hair, finding a tool that works well for my curls and coils was literally everything. When I first put it to the test, I started by blow drying my hair straight, then I sprayed ...