How should hair be treated after applying alcohol-based products?

When hair has alcohol-based products applied, it can become dry and brittle because alcohol tends to strip moisture from the hair. Applying heat immediately after such products would exacerbate the drying effect and potentially cause further damage, as heat can lead to moisture evaporation.

The most appropriate action to take after using alcohol-based products is to utilize a conditioning treatment. Conditioning treatments can help restore moisture and improve the overall health of the hair, counteracting the drying effects of the alcohol. It's important to nourish the hair after the use of such products to maintain its integrity and manageability.

Rinsing with cold water does not directly address the issue of dryness caused by alcohol. Leaving the hair untouched would also not provide any benefit in terms of hydration or repair. Therefore, using a conditioning treatment is the best course of action after applying alcohol-based products.