Some common mistakes people make when using hair conditioners include applying too much product, not rinsing thoroughly, applying conditioner on the scalp, and using the wrong type of conditioner for their hair type. To avoid these mistakes and achieve the best results, it is recommended to use a moderate amount of conditioner focusing on the mid-lengths and ends of the hair, rinse thoroughly to avoid product buildup, avoid applying conditioner to the scalp to prevent weighing down the hair, and choose a conditioner specifically formulated for thin hair like the “OGX Thick & Full + Biotin & Collagen Volumizing Conditioner”.