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Thickening Hair Serum

Sephora customers often prefer the following products when searching for Thickening Hair Serum.

Discover the secret to voluminous locks with our thickening hair serum. Say goodbye to flat, lifeless hair and hello to full-bodied, bouncy tresses. Formulated with cutting-edge ingredients designed to plump each strand from root to tip, this hair serum will give you the luscious volume you've always dreamed of. Whether you have fine, thin hair or just want to add some extra oomph to your style, this serum is your go-to solution for achieving enviable thickness and body. Elevate your hair game and unleash a mane that commands attention with our Thickening Hair Serum.

shu uemuraIzumi Tonic Strengthening & Thickening Rice Water Hair Serum

ITEM: 2658805

Size: 3.04 oz / 90 mL

113 Reviews

$94.50

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After I washed and blow dry my hair with the Izumi tonic shampoo and hair mask, I blow, dried my hair out completely and use this thickening rice, water hair serum. ...I received a free sample in exchange for my honest feedback. Shu uemura thickening serum is amazing!!! I love the sleek and modern look of the bottle. ...Fantastic hair system for my fine hair!

What it is: A lightweight, thickening hair serum infused with Japanese-sourced rice water that hydrates, repairs damage, reduces split ends, and strengthens fragile hair while leaving hair soft and shiny.

Hair Type: Straight, Wavy, Curly, and Coily

Hair Texture: Fine and Medium

Hair Concerns:
- Shine
- Volumizing
- Damage, Split Ends, and Breakage

Key Benefits:
- Leaves hair 30x stronger and increases hair diameter*
- Reduces split ends up to 91 percent and protects against future damage*
- Leaves hair strands soft, smooth, and shiny

Highlighted Ingredients:
- Rice Water: Rich in amino acids, vitamins, and antioxidants to help restore damage and prevent future breakage.
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$69.50

I love this serum! It goes in and doesn’t make my hair greasy and it’s so lightweight. ...I use this every time I wash my hair and I have noticed that especially in photos, my hair seems to be thickening around my hairline.

What it is: A serum that promotes key scalp collagens while reducing shedding up to 90% — for youthfully thick, supple, resilient-looking hair. Results in as little as 30 days.


Hair Texture: Straight, Wavy, Curly, and Coily


Hair Type: Fine, Medium, and Thick


Hair Concerns:

- Dryness

- Flaky/Dry Scalp

- Thinning


Key Benefits: 
- Supports key hair-optimizing scalp collagens

- Promotes youthful-, supple-, elastic-looking strands

- Addresses thinning, brittleness, and shedding


$77.00

What it is: A lightweight scalp serum that is scientifically shown to increase hair density by up to 3X in as few as 16 weeks.

Key Benefits:
- Concentrated, visible-density-boosting complex promotes microcirculation to the scalp to help support hair growth
- Supports a healthy hair life cycle to increase overall appearance of hair density
- Microfluidic technology allows for fast, weightless absorption

Highlighted Ingredients:
- Density-Boosting Complex (Caffeine, CoQ10, and Green Coffee Oil): Stimulates the scalp to help boost follicle activity.
- Copper Peptides: Help support a healthy hair lifecycle.
- Biotin: Supports hair elasticity and helps strengthen hair follicles and strands.

What Else You Need to Kno

$106.00

Wow this may be my favorite serum for hair to thicken. I have thin hair because I bleach my hair every 3 or 4 months. ...A must have for your hair!...It has also started to thicken my hair. I love it.

What it is: A dermatologist co-developed hair serum that visibly improves hair density, addresses shedding, and hydrates the scalp to support the skin barrier.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thick

Hair Concerns:
- Thinning
- Flaky, Dry Scalp

Key Benefits:
- Visibly improves hair density
- Promotes a balanced scalp
- Strengthens from the root

Highlighted Ingredients:
- GROActive+ Complex™: A patent-pending, AI-discovered, plant-based compound to address shedding.
- Spanish Microalgae: A prebiotic scalp superfood that hydrates to support the skin barrier.
- Plant Stem Cells: Rich in proteins to anchor strands at the root.

$46.00

What it is: A leave-in overnight serum designed to target the five signs of hair aging—thin, frizzy, flat, dry, and dull hair—in one night.


Hair Texture: Straight, Wavy, and Curly


Hair Type: Fine, Medium, and Thick


Hair Concerns:
- Thinning

- Dryness

- Damage, Split Ends, and Breakage

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“I bought this for my husband on his birthday last year & he’s on his second bottle now, I cannot tell you the miracle it mate for him, he was going bald & started to get white hair. The white hair is gone & his hair is omg his hair, it’s so thick && soft no more baldness either, he’s been super happy since I gifted him this shampoo && I love that for him”
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“The shampoo is also great- it smells amazing, lathers up very thick, leaves my hair feeling super clean and soft without being weighed down or greasy, and you only need to use a small amount (I have long hair so I am used to using a lot of product”

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