If you’re like me and have super-fine, flat hair, you probably have an insane number of thickening creams, mousses, and sprays sitting under your bathroom sink right now, a graveyard of underwhelming formulas. But do you have a thickening shampoo somewhere in that sea of products too?
Because here’s the thing: All those volumizers and thickeners aren’t really going to work if you haven’t prepped in the shower with the right shampoo—specifically, one with plumping ingredients to help boost the fullness of your hair. So do your fine hair a favor and suds up with one of these 10 best hair thickening shampoos, below. I promise you’ll be impressed with the results.
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Best Thickening Shampoo for Damaged Hair
R+Co Dallas Biotin Thickening Shampoo
If your thin, flat hair also happens to be damaged (aka you bleach it or use hot tools on the reg), you need this thickening shampoo. Not only will it beef up fine strands, but it’ll also help strengthen hair and give it crazy shine, thanks to a combo of biotin, vitamin b5, and coconut oil.
Best Drugstore Thickening Shampoo
Ogx Biotin & Collagen Extra Volume Extra Strength Shampoo
You don’t need to drop a ton of $$ to get a hair thickening shampoo that actually works. This top-rated drugstore option from Ogx is just $9, and contains a combo of biotin, collagen, wheat proteins, and bamboo fiber extracts to leave your hair stronger, thicker, and full of volume.
Best Clarifying Thickening Shampoo
Rahua Voluminous Shampoo
Not only does this thickening shampoo give your hair an insane amount volume and body, it also degunks your scalp and deep-cleans your roots thanks to clarifying eucalyptus and lemongrass. 10/10 recommend for anyone who is an infrequent washer or uses a ton of styling products.
Best Thickening Shampoo for Dry Hair
Ouai Shampoo for Fine Hair
In addition to volumizing ingredients like biotin and chia seed oil, this hair volumizing shampoo from Ouai contains moisturizing plant oils to give dry, thin hair serious nourishment and fullness. A win-win if you ask me.
Best All-Natural Hair Thickening Shampoo
Avalon Organics Thickening Shampoo
This biodegradable hair thickening shampoo contains none of the questionable stuff—e.g., synthetic fragrances, artificial colors, sulfates, or parabens. What it does have: a blend of all-natural biotin, saw palmetto, quinoa extract, and vitamin E that stimulates hair follicles to encourage growth and lots of volume.
Best Gentle Hair Thickening Shampoo
Amika 3D Volume and Thickening Shampoo
Most hair-thickening shampoos contain sulfates—notoriously harsh cleansers that strip your hair’s natural moisture and oils. And if your hair is already dry or dull, you need all the moisture you can get. This option from Amika is free from sulfates and uses gentler cleansers (plus a bunch of thickening proteins) so your hair feels clean and full but still hydrated.
Best Thickening Shampoo for Frizzy Hair
Kérastase Bain Densité Shampoo
I use this hair thickening shampoo every single day, and I swear my fine, frizzy hair is thicker and shinier as a result. The strand-plumping hyaluronic acid gives my roots the boost they need, while smoothing ceramides prevent flyaways from taking over my head.
Best Thickening Shampoo for Thinning Hair
Revitalash Cosmetics Thickening Shampoo
Thinning hair. It can happen out of nowhere and for any number of reasons (like stress, hormones, diet change, or certain medications). But here to help you deal is this thickening shampoo (P.S. It’s a Cosmo Hair Awards winner). The formula uses exfoliating willow bark to de-gunk your scalp and, in turn, makes it a happy place for new hair growth. It’s also filled with proteins and amino acids to encourage those hairs to grow thicker and stronger.
Best Thickening Shampoo for Color-Treated Hair
Oribe Shampoo for Magnificent Volume
This luxe thickening shampoo not only ups your volume but also smells amazing and prevents your color from fading. Its volumizing magic lies in body-building polymers that expand the hair shaft, and its color-protecting powers stem from antioxidants that help shield strands from pigment-depleting aggressors.
Best Thickening Shampoo for Sensitive Scalps
Head & Shoulders Advanced 2-in-1 Volume Boost Shampoo & Conditioner
Dealing with an itchy, dry scalp? This two-in-one thickening shampoo and conditioner duo is for you. It gives your hair the fullness you’re after and keeps flakes in check, thanks to the zinc pyrithione (one of the best ingredients for fighting dandruff) it contains.
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