If you want to show how well your product protects hair from UV and gaseous pollution, such as ozone, you may consider performing an anti-pollution test.

Our anti-pollution test for UV and gas exposure uses a custom-built chamber that can pass a fixed amount of ozone over the surface of the hair fiber at a set rate.  The chamber has a UV-transparent lid and can be placed inside a solar simulator (Q-Sun) to probe the combined effects of gaseous pollution and sunlight.  In a typical test, pollution and sunlight levels are exaggerated compared to everyday exposure, but this can surrogate for long-term pollution exposure.  The effects of pollution damage can be measured using differential scanning calorimetry (DSC) and dry combing tests, such as repeated grooming or ease-of-combing.