Marie Claire: These Shampoos Will Make Your Hair Grow, According to Stylists and Derms featuring BioGen Complex by Gina

Giovanni Vaccaro, celebrity hairstylist and artistic director of Glamsquad, believes that when it comes to repairing hair, it’s essential to find the right shampoo and conditioner that can actually penetrate the hair follicle, impart strength, and add moisture. “Recently, I’ve been loving Kérastase  Resistance Length Strengthening Shampoo and Conditioner. It’s built with creatine and taurine, which is an amino acid that protects the hair fiber and scalp, in turn your hair will definitely feel stronger and healthier. If you are looking for even more moisture, use the Resistance Length Strengthening Mask ($59). You won’t regret it.

“I am also a big fan of Briogeo’s Don’t Despair, Repair line,” Giovanni adds. “It’s cruelty-free and 95-percent of the formula is naturally derived. The shampoo and conditioner have algae extract and biotin, which promotes hair strength and elasticity. It also has a lovely feel that won’t weigh your hair down.

Ashley Streicher, celebrity hairstylist for Garnier Brand Ambassador Mandy Moore, is a fan of this drugstore gem. “This shampoo and conditioner fortifies hair with a power dose of active fruit concentrate and ceramides,” Streicher says. “The formula goes deep to fortify each strand from core to cuticle and reinforces hair’s natural substance from root to tip. Plus, Fructis packaging contains 50% Post-Consumer Recycled Waste.”

Celebrity stylist Takisha Sturdivant-Drew swears by this inexpensive option, which results in hair that looks super-thick and full. “The biotin and collagen pump up the volume on fine hair and leaves all textures with a beautiful shine,” she says. “Most of all, its ingredients brings brittle hair back to life with new growth.” Dermatologist Rachel Nazarian, M.D., also recommends this shampoo to her clients. “In terms of  anti-inflammatory and strengthening shampoos, I recommend OGX, which is sulfate-free and less drying than many shampoos. The keratin proteins and argan oil strengthen the cuticle for stronger hair.” That means less breakage.

This $4 steal is another favorite of Sturdivant-Drew’s because the clay-infused formula rids the scalp of excess buildup, which can hinder growth. “This shampoo purifies and hydrates the hair from root to tip,” she explains. “If you use it regularly, you’ll end up with fresh-flowing, beautiful hair.”

Kendall Dorsey, stylist to the stars  (think: Teyana Taylor, Cardi B., Bella Hadid), says this is the very best shampoo for hair growth. Here’s why: “It’s specially formulated with a blend of actives and antioxidants such as baobab, rosa multiflora and swertia chirata to block the production of FGF5, a protein that causes hair loss,” he explains. “This line was developed by hair biologists and is backed by clinical results—I’ve seen the results for myself on clients, but it’s nice to have science to prove it.”

Dorsey’s also a fan of this biogen-infused shampoo. “It’s blended with biotin, collagen, and wheat protein, which have all been shown to increase hair health, length, and volume,” he says. “The formula also rinses out really well, helping you to avoid follicle buildup, which leads to hair loss.” Gina Rivera, hairstylist and founder of Phenix Salon Suites seconds Dorsey, noting the shampoo’s hardworking ingredients, and calling it a “multivitamin for the hair.” “The biotin in this product stimulates blood flow to the scalp,” explains Rivera. “It’s important to remember a healthy scalp will promote healthy hair growth.”