Best Thickening Conditioner of 2025

L'Oreal Paris EverStrong Thickening Sulfate Free Conditioner is an ideal solution for thin, fragile hair. The sulfate-free formula not only promotes thicker-looking hair but also strengthens it. The Rosemary Extract fortifies and hydrates fine hair, leaving it full and healthy. Using the EverStrong Thickening System with shampoo and conditioner makes hair 15 times stronger. Additionally, the conditioner is gentle on color-treated hair and has a fresh aromatic fragrance that conditions.

Tea Tree Thickening Conditioner is a volumizing conditioner that gives fine hair a thickening citrus boost with body, condition, and shine. Its zesty formula contains thickening agents that add volume, while lightweight conditioners protect hair and add shine. With this conditioner, you can have fuller and healthier-looking hair without weighing it down. The thickening agents help to add volume to your hair while the lightweight conditioners provide protection and add shine. The zesty formula makes your hair look and feel refreshed with a citrusy fragrance that lasts all day. This conditioner is perfect for those with fine hair who want to achieve a fuller, thicker look without sacrificing shine or manageability.

The Bumble Thickening Conditioner is a lightweight formula designed to give your hair an instant boost of volume. If you have fine to medium hair, this conditioner is perfect for you, as it lifts and amplifies your strands without weighing them down. With its unique Strand-Plumping Technology, each hair strand is thickened and plumped for a fuller appearance. Additionally, it contains Panthenol, or Pro-Vitamin B5, which helps to add moisture and promote healthy-looking hair. Plus, it's color safe, so you can use it confidently on color-treated hair.

Avalon Organics Natural Biotin B-Complex Thickening Conditioner deeply nourishes and hydrates fine, thinning hair to help build volume. This certified organic, plant-based formula is made with botanicals and essential oils, and is free of GMOs, parabens, harsh preservatives, synthetic colors or fragrances, phthalates, and sulfates. It is also cruelty-free and recognized by the Leaping Bunny Program.

KERASTASE Densifique Densité Conditioner is a hair conditioner that thickens all thin or thinning hair types, hydrates and easily detangles hair, and smooths hair texture with enhanced shine. It is ideal for hair lacking thickness and volume. Formulated with Hyaluronic Acid, it plumps the hair and prevents future hair breakage.

Renpure Thickening Conditioner is designed to make fine hair appear thicker and fuller. Infused with Biotin and Collagen, this conditioner nourishes your hair, promoting a healthy look and feel. You can enjoy peace of mind knowing it is free from harsh ingredients like sulfates and parabens, making it gentle on your hair and scalp. With a balanced pH, it helps maintain the natural health of your hair. Plus, the bottle is made from recycled plastic, so you can care for your hair while being environmentally conscious.

hims Thick Fix conditioner is a water-soluble formula containing top conditioning ingredients like niacinamide, aloe, coconut oil, or argan oil. It bolsters and stimulates your strands to help hair appear thicker and fuller whenever it needs a boost. After shampooing, apply a quarter-size amount of Thick Fix conditioner to the scalp, roots, and ends of hair. Made with niacinamide, this conditioner helps hair appear thicker and fuller whenever it needs a boost. Using too much hair product can result in greasy, flat hair. Crew cut or mop top hairstyles can help disguise thinning hair and give the appearance of more volume.

The Biolage Full Density Thickening Conditioner is a vegan and cruelty-free conditioner specially designed for thin and fine hair types. Infused with biotin, this conditioner not only moisturizes the hair but also adds fullness and volume without weighing it down. It promotes a healthy scalp, which in turn allows for healthier hair growth. With regular use of the Full Density system, including the shampoo and conditioner, you can achieve maximum volume in just one use and enjoy fuller, thicker-looking hair over time. The conditioner is easy to use - simply apply it evenly to your hair, massage through the lengths and ends, leave it on for 1-3 minutes, and rinse thoroughly. This product also comes in a 100% recycled bottle, making it environmentally friendly.

The Viviscal Thickening Conditioner is designed to enhance the health and thickness of your hair. It contains a unique blend of marine collagen, seaweed, biotin, and keratin that provides essential hydration while keeping your hair light and manageable. This conditioner not only strengthens your strands but also helps them look fuller and healthier. With its delightful floral fragrance, your hair will smell as good as it feels. Suitable for all hair types, you can use it daily for the best results, especially when paired with Viviscal Thickening Shampoo.

The Marc Anthony Instantly Thick Biotin Conditioner is specially designed for fine and weak hair. Its key ingredient, biotin, helps to strengthen hair strands and minimize future breakage and split ends. The conditioner works to thicken and volumize hair, making it look fuller and healthier.