Our top pick for the best overall hair growth conditioner is the Redken Extreme Length Conditioner. This formula is enriched with amino acids, citric acid, and arginine, which blend together to ward off all types of damage — including more extreme situations — while also providing an ideal environment for hair growth.

Dr. Garshick and Dr. Camp suggest Briogeo Destined for Density Peptide Shampoo, Paul Mitchell Tea Tree Scalp Care Regeniplex Shampoo, and Nioxin Cleanser Shampoo for their blends of ingredients that work both for improving your hair health and also increasing circulation to the scalp for new growth.

How does deep conditioning work? It gives your hair a big hit of moisture or protein, helping to strengthen your hair at the cuticle. A mask can reduce breakage and split ends, improve elasticity, and keep your hair healthy.