There are some things to consider before you buy a shampoo or conditioner that promises full-bodied locks. While you can’t alter the density of your hair with shampoos or conditioners, there are some products that can make your hair look thicker.

First, let’s talk about what you can do to make your hair look its best. It all starts at the root. Howard McLaren, R+Co cofounder and Creative Director, says that healthy hair starts with a healthy scalp environment. Hair density can be affected by many factors, including genetics, stress, medical issues and environmental issues. Some thickening products can give your hair more thickness and help to maintain a healthy scalp environment. You might also want to know how thickening shampoos or conditioners work. McLaren says they are a magician’s trick. They use powerful conditioning agents and growth-promoting substances like biotin to plump hair follicles and increase strand strength. The more moisture a hair strand has, the more it swells, plumps, and gives the appearance of thicker hair. Biotin increases hair’s keratin structure and strength, resulting in thicker locks.

These sets can help make your hair look more vibrant and less flat. You should know that these products do not alter the hair’s genetic structure. They help each strand to be its best. If you want to try these best thickening shampoos, conditioners, and treatments, here are some of my recommendations.

R+Co Dallas Biotin Thickening Shampoo & Conditioner Conditioner

McLaren gives us the scoop on one of R+Co’s most loved sets. This set is packed with nutrients that will help your locks stay strong. Pro-vitamin B5 gives you intense hydration, while artichoke leaves extract (a powerful antioxidant) protects your scalp from UV rays and free radicals. You can also get minerals to revitalize damaged or dry hair. Hydrolyzed rice protein locks moisture in and prevents breakage. It also improves strength. Basil root extract improves hair density and optimizes scalp environment. Saw palmetto extract gives hair body, making it appear thicker. He also mentions that the loquat extract is rich in vital nutrients and minerals, which helps to maintain full hair.

• R+Co Dallas Biotin Thickening Hair Shampoo ($29)
• R+Co Dallas Biotin Thickening Shampoo ($29)

OGX Thick &. Full + Biotin and. Collagen Volumizing Shampoo & Conditioner

The combination of biotin and collagen in this thickening shampoo-and-conditioner set is everything. These ingredients combine to give stronger hair without making it feel heavy or greasy.

• OGX Thick &. Full + Biotin and. Collagen Volumizing Shampoo ($6)
• OGX Thick &. Full + Biotin and. Collagen Volumizing Conditioner ($6)

Living Proof Full Shampoo and Conditioner Conditioner

Another set that helps to make hair look thicker is this one. It focuses on nourishing and maintaining a healthy scalp. It also contains Living Proof’s Healthy Head Molecule. This helps to remove excess buildup and repel future dirt and oils, keeping hair healthier  and longer.

• Living Proof Full Shampoo (29$)
• Living Proof Full Conditioner ($29)

Ouai Fine Hair Shampoo & Conditioner

Ouai’s Fine Hair Shampoo and conditioner set is safe for color-treated hair and uses ingredients such as chia seed oil, keratin and biotin to strengthen the hair shaft.

• Ouai Fine Hair Shampoo ($28)
• Ouai Fine Hair Conditioner ($28)

Josh Rosebrook Nourish Shampoo and Conditioner Conditioner

This set contains high-nutrient-dense ingredients such as aloe leaf juice and coconut oil, along with burdock root extract and hemp-seed oils. These are two essential factors for healthy hair.

• Josh Rosebrook Nourish Shampoo ($35)
• Josh Rosebrook Nourish Conditioner ($35)

Conditioner with Bondi Boost Thickening Treatment Shampoo & Conditioner

Bondi Boost is well-known for its amazing hair-growth products. However, this thickening set is just as impressive. This formula contains hyaluronic acid and ginseng. It also includes sea kelp to strengthen and plump each hair strand.

• Bondi Boost Thickening Shampoo ($30)
• Bondi Boost Thickening Treatment Conditioner ($30)

Innersense Organic Beauty Pure Harmony Shampoo & Conditioner Hydrating Cream Hairbath

The Pure Harmony set by Innersense helps to build body and finer hair textures. With ingredients such as quinoa and rice extracts, shea butters, coconut oil, avocado oil, and shea butter, it provides long-term strength. It leaves hair full-bodied, healthy, and balanced.

• Innersense Organic Beauty Pure Harmony Shampoo ($28)
• Innersense Organic Beauty Hydrating Hair Cream ($28)

Tea Tree Lemon Sage Thickening Shampoo & Conditioner

The set includes thickening agents as well as panthenol, a form of vitamin B5, which promotes extra hair growth. The perfect cocktail for boosting hair growth is made with the refreshing scents of peppermint, lemon, and sage.

• Tea Tree Lemon Sage Thickening shampoo ($15)
• Tea Tree Lemon Sage Thickening conditioner ($17)

Evolvh InstaVolume Cleansing Treatment & Elixir

Evolvh’s InstaVolume Cleansing Treatment is a great option if you just want to give your hair some lift. This powerful in-shower treatment doesn’t require a conditioner afterwards. You’ll be able to save time and money, while volumizing your hair. To further enhance fullness and balance your scalp’s pH, the elixir is a leave in conditioning spray that you can apply to wet hair.

• Evolvh InstaVolume Cleansing Treatment ($29)
• Evolvh InstaVolume Volumizing Oil ($30)

Avalon Organics Therapy Thickening Protein-B Complex Shampoo & Conditioner Conditioner

Avalon Organics Therapy Thickening Set helps increase volume and thickness with a biotin-rich combination. The pH balance formula deeply conditions hair with ingredients such as quinoa protein and vitamin E.

• Avalon Organics Therapy Thickening Protein-B Complex Shampoo ($7)
• Avalon Organics Therapy Thickening Protein-B Complex Conditioner ($8)