A conditioning treatment refers to a process of nurturing and improving the condition of something, usually hair or skin. It involves using special products or techniques to make the hair or skin healthier, softer, and more manageable.
Give them the extra attention they need with a deep conditioning treatment on the weekend when you may have more time for self - care. (mindbodygreen.com)
Use it as a massage oil, total body moisturizer, or conditioning treatment for your baby's scalp. (organic-baby-resource.com)
I've heard leaving a deep conditioning treatment in all day helps. (fashioninflight.com)