When we talk about hair loss, it’s important to note that there are many causes. “Hair loss is polygenic, meaning there are many factors that impact hair loss, such as genetics, diet, medication, vitamin and mineral deficiencies, hairstyling habits, and illnesses,” explains Bridgette Hill, a certified trichologist and founder of Root Cause Scalp Analysis. “In order to combat hair loss, you must address the body to impact the cells, blood, and tissue—hair loss is a direct function of a disconnect in the body, and getting it under control means making your health a priority. It is essential that the cause of the hair loss is identified.” A visit to a certified trichologist or dermatologist who specializes in hair and scalp can help you identify which type of hair loss you’re experiencing, and then offer guidance to an action plan. Depending on which type of hair loss you’re dealing with, your doctor will suggest hair products or supplements to help get your hair growing. “Products to manage hair loss are formulated with active ingredients that extend the growing phase of the hair cycle, forcing the hair follicle to generate energy and draw the nutrients to the scalp,” explains Hill. “Therefore, extending the life of the hair fiber and improving the quality and health of the hair follicle and hair fiber.” Products that contain DHT blockers are also helpful. “DHT dihydrotestosterone is a scientifically proven androgen that triggers genetic hair loss,” says Hill. “These types of ingredients can range from niacin, saw palmetto, vitamin D, tamarind seed extract, Brazilian ginseng, lemon balm extract, essential orange, and lavender oils. Certain fish and marine byproducts are also proven to successfully reduce hair loss.” When on the hunt for a hair loss product, there are some ingredients you’ll want to avoid, like mineral oils or synthetic silicones. “Stay away from silicones, as they can clog the follicles if used directly on the scalp,” explains Kerry Yates, a certified trichologist, beauty expert, and CEO of Colour Collective. “When used as a conditioner, they can weigh down fine, thin hair, making it appear oily and lifeless.” Additionally, harsh detergent shampoos can disrupt the microbiome of the scalp. “The fillers and ingredients that do not have the molecular makeup designed to nurture the horny layer of the scalp or nourish the microbiome create buildup on the scalp and the base of the hair follicle,” explains Hill. “Rethink your detergent-based cleaning and opt for incorporating scalp washes or cleansers into your hair care regimen. The scalp needs more than lather, rinse, and repeat to achieve healthy hair growth.” So what can you use to treat hair loss? Below, you’ll find a plethora of hair products to help hair growth, recommended by both Hill and Yates.