Top 10 Thickening Shampoos

WHAT TO KNOW
According to Pura D’or, when it comes to strengthening your strands, it all starts with your scalp. Packed with plant-based nutrients, their hair thickening shampoo is formulated to lift your roots, reduce breakage, and increase the volume of your locks.

ADDITIONAL INFORMATION
This product is considered hypoallergenic and is free from parabens, harsh chemicals, and gluten. It’s also cruelty free and vegan.

FORMULA FACT
Biotin, collagen, and coffee are the key ingredients behind this volume-boosting shampoo. While biotin is said to strengthen strands, collagen helps to reverse split ends. Caffeine is also known to stimulate your roots (which promotes hair growth) and enhance your hair’s shine.

MORE DETAILS
Because of its superstar formula, this is one of the best shampoos for fine, thin hair. And guess what? Hask makes a matching thickening conditioner.

WHAT TO KNOW
OGX is a drugstore favorite due to its wide variety of hair care products, including the Thick & Full Biotin & Collagen Shampoo. Made for those with flat, fine-to-medium strands, this best-selling hair-thickening product has earned over 2,000 5-star reviews on Walmart’s website alone.

ADDITIONAL INFORMATION
Are you a sucker for a good scent? If so, you’ll love this shampoo, which has a subtle balance of bergamot, jasmine, and vanilla.

FORMULA FACT
Amika’s 3D Volume And Hair Thickening Shampoo combines the powers of hydrolyzed rice protein, sea buckthorn (a superfruit), and the brand’s patented redensyl complex to create a blend that stimulates hair growth. 

USER REVIEW
“My go-to shampoo and conditioner for my fine hair! This does everything I hoped it would when first trying it out, on top of smelling absolutely amazing! It makes my hair feel thick and gives it a ton of volume. This is a staple in my rotation of shampoos and conditioners.”

WHAT TO KNOW
Due to the addition of acacia gum in the formula, the Pure Abundance Volumizing Shampoo is best for those with fine hair. First used by the ancient Egyptians, acacia gum is known to hydrate and bring life back to dull locks.

ADDITIONAL INFORMATION
Heads-up: this product is not formulated for those with color-treated hair.

WHAT TO KNOW
Looking for a product that will give you thicker, healthier hair? Right this Ouai. Ouai’s Fine Hair Shampoo is best known for its ability to transform thin, flat hair into bouncy, voluminous locks—and thankfully, this one is safe to use on color-treated hair.

MORE DETAILS
The scent behind this product features a pleasant combination of Italian lemon, Turkish rose, jasmine, iris, lily, and white musk.

FORMULA FACT
For those with flat, color-treated hair, it doesn’t get much better than BondiBoost’s Hair Thickening Therapy Shampoo. This vegan and cruelty-free product takes advantage of biotin’s ability to promote keratin production, and it also contains amaranth extract (a hair-strengthening supplement). 

USER REVIEW
“This line has transformed my hair! I feel like my curls have more shape and hold to them. I’m obsessed. My hair felt fuller and stronger after one use. I cannot wait to see results later down the line!”

WHAT TO KNOW
At $95, Bumble And Bumble’s Thickening Volume Shampoo is certainly a splurge. So, is it worth its heavy price tag? According to the 300+ users who gave it a 5-star review on Nordstrom’s website, yes.

MORE DETAILS
As the bottle suggests, this is one of the best hair thickening products for those whose strands need a little oomph. It’s designed to infuse shine and provide lightweight moisture so that your locks look bouncy, healthy, and full.

WHAT TO KNOW
As the legend goes, everything’s bigger in Texas (including the hair). That’s probably why R+Co’s Dallas Biotin Hair Thickening Shampoo is named after one of the state’s most notable cities and promises to provide “...big, beautiful, bouncy hair.”

ADDITIONAL INFORMATION
Here’s another reason to love this shampoo: it’s formulated to provide protection from heat damage caused by styling tools.

FORMULA FACT
Made for those with thinning, damaged hair, Living Proof’s Full Shampoo breaks down buildup in order to leave your locks fresh and fuller-looking. Its formula features strengthening amaranth peptides and an amino cleansing complex that will clean your scalp without stripping your strands of their natural oils.

MORE DETAILS
According to our algorithm, this is the best shampoo for fine hair on the internet. But if you need another opinion, here’s a review from Sephora’s website: “After just one wash, there was such a noticeable difference! My hair was dramatically fuller from root to end. There was so much more volume but no frizz, too, which I loved.”