Elevated demand for hair products does not appear to be subsiding, according to new data from The NPD Group. In fact, more than 90% of US consumers continue to show strong purchase interest for hair-related products and are even taking their routines to another level. This category is expected to continue along its positive sales trajectory through 2024, averaging 15% growth in the US over the next two years, according to The NPD Group. Compared to the previous six months, more consumers plan...