Today’s Solutions: December 18, 2025

Hair dying is a big business. The global hair coloring industry is worth about 10 million dollars per year. The chemical ingredients used in hair dyes have been shown to promote cancer or cause allergic reactions. Moreover, the dyes end up washed down in drains and create environmental hazards in rivers and streams. So, it’s great news that British researchers have created a natural, sustainable hair dye made from blackcurrant skins.

Solutions News Source Print this article
More of Today's Solutions

New method uses sound waves to map soil health, stop famine, and restore farm...

BY THE OPTIMIST DAILY EDITORIAL TEAM Across the world, soil scientists are trading in their shovels for something unexpected: seismic sensors. In a breakthrough ...

Read More

This simple 15-minute mindset exercise can ease anxiety, science shows

BY THE OPTIMIST DAILY EDITORIAL TEAM A growing body of research is revealing how a short, simple activity that is done in just 15 ...

Read More

3 habits of the happiest people

Think of the happiest people you know. Do you find yourself often wondering what they are doing to maintain a general level of joy? ...

Read More

Changemakers of the week: GRuB and SparkNJ

Every day on the Optimist Daily, we report on solutions from around the world. Though we love solutions big and small, the ones that ...

Read More