10 Best thicker fuller hair serums of 2025

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1

Nutrafol
Nutrafol Women's Hair Serum, Supports Visibly Thicker and Stronger Hair, Vegan, Lightweight and Fast-Absorbing - 1.7 Fl Oz, 1 Bottle
Main highlights

Thicker Stronger Hair Benefit
Nutrafol Women's Hair Serum promotes visibly thicker, stronger hair with science-backed vegan ingredients.

Ideal for Hair Thinning
Perfect for women experiencing hair thinning and breakage, enhancing scalp health and hair vitality.

Non-Greasy Formula Praise
Customers love the lightweight, non-greasy formula that leaves hair manageable and styled easily.
9.8

Exceptional

Our Rating
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Value for Money

2

divi
Divi Scalp Serum for Thinning Hair, 30ml – Clinically Tested, Nourishing Formula with Amino Acids, Caffeine & Rosemary Oil – Promotes Healthy Scalp & Fuller-Looking Hair, Reduces Oil & Product Buildup
Main highlights

Improves Appearance of Thinning Hair
Formulated with peppermint oil and menthol to support hair growth.

Ideal for Daily Scalp Nourishment
Perfect for those seeking a hydrated, healthy scalp environment.

Praised for Minty Sensation
Customers love the refreshing minty feel and scent.
Key specs
- Application Method:Apply 1 ml daily
- Ingredient Quality:Clean, vegan, paraben-free
- Targeted Use:Scalp nourishment
- Formulation:Serum
- Active Ingredient:Peppermint Oil, Menthol
9.7

Exceptional

Our Rating

9.5
Simple to use

9.1
Aroma

8.0
worth the money
3

Thicker Fuller Hair
Thicker Fuller Hair Thickening Serum - Thinning Hair Treatment - Hair Volumizer Serum with Natural Ingredients - Fights Breakage - 5 oz

20% Off
Main highlights

Natural Hair Thickening Benefits
Infused with Mongongo Kernel Oil and Green Coffee Oil for thicker, fuller hair and reduced breakage.

Ideal for Sensitive Scalps
Free from sulfates, parabens, and silicones, perfect for color-treated or sensitive scalps.

Customer Praise for Scalp Nourishment
Aloe Leaf Juice is highly praised for soothing and nourishing the scalp.
Key specs
- Application Method:Serum
- Hair Growth:Cold-Pressed Green Coffee Oil
- Suitable Hair Types:Color-treated hair
- Moisturizing:Aloe Leaf Juice
- Main Ingredient:Mongongo Kernel Oil
9.4

Excellent

Our Rating
4

Thicker Fuller Hair
Thicker Fuller Hair Root Boosting Leave-In Treatment - Leave In Hair Treatment - Natural Volume Builder - Moisturizing Scalp Treatment - 4 oz

20% Off
Main highlights

Natural Volume Boost
Enriched with Mongongo Kernel Oil and Arginine HCL for thicker hair.

Ideal for Thinning Hair
Perfect for men and women seeking a volumizing solution.

Praised for Scalp Safety
Free from sulfates, parabens, and silicones, ideal for sensitive scalps.
Key specs
- Application Method:Leave-in treatment
- Hair Growth:Arginine HCL nourishes roots
- Suitable Hair Types:Color-treated, sensitive scalp
- Moisturizing:Yes, leave-in treatment
- Main Ingredient:Mongongo Kernel Oil
9.3

Excellent

Our Rating
5

Thicker Fuller Hair
Thicker Fuller Hair, Root Lifting Serum By, Green, 4 Fl Oz
Main highlights

Volume Enhancement
Designed to tackle thinning hair, promoting thicker, fuller-looking hair.

Ideal for Thinning Hair
Perfect for those seeking volume and control without stickiness.

User Praised Softness
Leaves hair soft, manageable, and not sticky, as noted by users.
9.0

Excellent

Our Rating

8.9
worth the money

8.4
Sound level

8.2
Aroma
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6

Thicker Fuller Hair

Thicker Fuller Hair Serum Root Lifting Sulfate Free 4 Ounce (Pack of 3)
8.9

Very Good

Our Rating
7

Svvimer

Svvimer Hair Growth Serum Spray - with Rosemary Batana Oil Biotin for Hair Loss and Thinning - Thicker Fuller Longer - for Women and Men 2.7 Fl Oz (Pack of 1)
8.8

Very Good

Our Rating
8

Dorzu
Thicker Fuller Hair Serum Root Lifting Sulfate Free 4 Ounce (Pack of 2)
Main highlights

Key Features
Enhances volume with organic quinoa and caffeine, vegan, sulfate and gluten-free, color safe, cruelty-free for thinning hair.

Ideal Use
Perfect for individuals with thin or thinning hair seeking root lift and scalp nourishment without chemical harshness.

Customer Reviews
Most praised for its effectiveness in adding volume and making hair feel thicker, with noticeable improvements in hair health.
Key specs
- Ingredients:Organic Quinoa, Caffeine
- Hair Type:Thin and Thinning
- Product Dimensions:7.48 x 5.31 x 1.57 inches
- Frizz Control:N/A
- Moisture:N/A
8.7

Very Good

Our Rating

9.3
Sound level

9.3
worth the money

9.3
Aroma
9

The Ordinary
The Ordinary Multi-Peptide Serum for Hair Density, Peptide-Powered Formula for Thicker, Fuller Looking Hair, 2 Fl Oz
Main highlights

Enhances Hair Density and Growth
This serum increases hair density, boosts growth, and prevents hair loss with natural ingredients.

Ideal for Thinning Hair and Hair Loss
Perfect for men and women experiencing thinning hair and hair loss.

Praised for Promoting New Hair Growth
Customers frequently note visible new hair growth after use.
8.6

Very Good

Our Rating

9.9
quality of ingredients

9.7
Simple to use

9.3
Aroma
10

Thicker Fuller Hair
Thicker Fuller Hair Nourishing Daily Scalp Tonic, Green, 4 Fl Oz (Tónico)

11% Off
Main highlights

Nutrient Rich Scalp Tonic
Scalp Tonic that refreshes the scalp with a daily dose of essential nutrients. Formulated by an ayurvedic chemist with organic Quinoa and Pea Sprout.

Best for Thin Thinning Hair
100% vegan, sulfate-free, and gluten-free tonic for thin and thinning hair. For best results, use with Thicker Fuller Hair Shampoo, Conditioner, and Root Lifting Serum.

Improves Hair Fullness
Customers praise the product for making hair look fuller and thicker, reducing hair loss, and adding body to fine and thinning hair.
8.5

Good

Our Rating

9.9
quality of ingredients

9.3
For Gentle skin

8.7
Aroma

10 Best thicker fuller hair serums of 2025

1

Nutrafol Women's Hair Serum, Supports Visibly Thicker and Stronger Hair, Vegan, Lightweight and Fast-Absorbing - 1.7 Fl Oz, 1 Bottle

How do we rank?

How do we rank?

Analyzing top stores

2

Divi Scalp Serum for Thinning Hair, 30ml – Clinically Tested, Nourishing Formula with Amino Acids, Caffeine & Rosemary Oil – Promotes Healthy Scalp & Fuller-Looking Hair, Reduces Oil & Product Buildup

9.5

9.1

8.0

3

Thicker Fuller Hair Thickening Serum - Thinning Hair Treatment - Hair Volumizer Serum with Natural Ingredients - Fights Breakage - 5 oz

4

Thicker Fuller Hair Root Boosting Leave-In Treatment - Leave In Hair Treatment - Natural Volume Builder - Moisturizing Scalp Treatment - 4 oz

5

Thicker Fuller Hair, Root Lifting Serum By, Green, 4 Fl Oz

8.9

8.4

8.2

6

Thicker Fuller Hair Serum Root Lifting Sulfate Free 4 Ounce (Pack of 3)

7

Svvimer Hair Growth Serum Spray - with Rosemary Batana Oil Biotin for Hair Loss and Thinning - Thicker Fuller Longer - for Women and Men 2.7 Fl Oz (Pack of 1)

8

Thicker Fuller Hair Serum Root Lifting Sulfate Free 4 Ounce (Pack of 2)

9.3

9.3

9.3

9

The Ordinary Multi-Peptide Serum for Hair Density, Peptide-Powered Formula for Thicker, Fuller Looking Hair, 2 Fl Oz

9.9

9.7

9.3

10

Thicker Fuller Hair Nourishing Daily Scalp Tonic, Green, 4 Fl Oz (Tónico)

9.9

9.3

8.7

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