Optimising fragrance longevity and fabric softness

Challenge

Our client was investigating new technologies in laundry fragrance to optimise the known consumer benefits of fragrance longevity and fabric softness. There was a need to understand how the various technologies performed relative to each other and against competition and, at a time when consumers are economising, how this performance is maintained at lower than suggested doses.

Solution

A designed experiment that investigated 14 samples each at three dose levels.

Preparation of fabric samples in our in-house laundry following our client’s in-house protocol

Assessment of fabrics for their fragrance or “perfume intensity”, and “softness” by our trained sensory panel; assessment damp, dry, dry after 1 week and dry after 2 weeks.

Outcome

Overall, the client’s product provided long-lasting fragrance which was impacted minimally by reducing the dose. One sample provided a stronger fragrance for up to one week. The results provided confidence that the product would satisfy consumer needs even if less than the recommended dose was added to the wash.