Which product is typically used to protect hair from thermal damage?

The product that is typically used to protect hair from thermal damage is heat protectant spray. This type of spray is specifically formulated to create a barrier between the hair and high temperatures from styling tools such as blow dryers, curling irons, and flat irons. The ingredients in heat protectant sprays often include silicones or natural oils, which help to coat the hair shaft, reducing moisture loss and minimizing damage from heat exposure.

In contrast, the other options serve different purposes. Hair gel is primarily used for styling and providing hold, while moisturizing conditioner is designed to hydrate and nourish the hair, improving its texture and preventing breakage. Hair wax is a styling product that adds texture and definition but does not offer thermal protection. Understanding the specific function of heat protectant spray highlights its importance in maintaining hair health during heat styling.