Both the shampoo and conditioner bottles were bi-layer extrusion blowmolded for economy and for maximum color effect. The surface layer was 20% of the total structure; the base layer was 80%. Caps were monolayer injection molded. Resins used were:
Polypropylene (PP) was used in the shampoo bottle for its clarity and high gloss, and the fact that PP takes maximum advantage of reflective elements of pearlescent colors. These characteristics were chosen both for aesthetics and to suggest the bright clean look that the shampoo brand would provide for hair.
For the conditioner bottle, 100% virgin high-density polyethylene (HDPE) was used in the outer layer, and the inner layer included postconsumer-recycled (PCR) HDPE in combination with virgin so that the PCR constituted 25% of the total bottle weight. HDPE has a softer character than the PP, intended to suggest the soft manageability provided by the faux conditioner brand.