Best Hair Thickening Conditioner of 2026

Last updated on 26/05/2026

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Kérastase Densifique Femme, Thickening & Volumising Conditioner, For Fine Hair, With Hyaluronic Acid, Gluco Peptide & Ceramides, Fondant Densité, 200ml

Kérastase Densifique Femme, Thickening & Volumising Conditioner, For Fine Hair, With Hyaluronic Acid, Gluco Peptide & Ceramides, Fondant Densité, 200ml

Restores fullness on fine hair.
Improves strength and volume.
Protects against external damage.

Main Highlights

Fondant Densite conditioner restores thickness for fine, fragile hair lacking density. Enriched with Hyaluronic Acid, Intracylane and Stemoxydine, hair is nourished and strengthened from within; leaving it with improved thickness and volume.
Plumps, strengthens, and densifies hair without weighing it down. Hair fibres are reinforced to protect from external aggressors, leaving hair thicker and with more body.
Following washing with Bain Densite shampoo for women, apply the conditioner to damp, towel-dried hair, working through from mid-lengths to tips. Leave for 1-2min, rinse thoroughly.

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Kérastase Densifique Femme, Thickening & Volumising Conditioner, For Fine Hair, With Hyaluronic Acid, Gluco Peptide & Ceramides, Fondant Densité, 200ml

Restores fullness on fine hair.
Improves strength and volume.
Protects against external damage.

Main Highlights

Fondant Densite conditioner restores thickness for fine, fragile hair lacking density. Enriched with Hyaluronic Acid, Intracylane and Stemoxydine, hair is nourished and strengthened from within; leaving it with improved thickness and volume.
Plumps, strengthens, and densifies hair without weighing it down. Hair fibres are reinforced to protect from external aggressors, leaving hair thicker and with more body.
Following washing with Bain Densite shampoo for women, apply the conditioner to damp, towel-dried hair, working through from mid-lengths to tips. Leave for 1-2min, rinse thoroughly.

Value for Money

John Frieda ProFiller+ Thickening Shampoo and Conditioner 500ml Duo Pack

John Frieda ProFiller+ Thickening Shampoo and Conditioner 500ml Duo Pack

Triumphs hair breakage and loss.
Boosts hair thickness by 200%.
Formulated with Biotin, Hyaluronic Acid.

Main Highlights

Provides 200% thicker*, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Bundle contains: Silicone free shampoo and thickening conditioner
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
* when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

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John Frieda ProFiller+ Thickening Shampoo and Conditioner 500ml Duo Pack

Triumphs hair breakage and loss.
Boosts hair thickness by 200%.
Formulated with Biotin, Hyaluronic Acid.

Main Highlights

Provides 200% thicker*, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Bundle contains: Silicone free shampoo and thickening conditioner
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
* when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

Pantene Lift'N'Volume Thickening Hair Conditioner with Biotin, Silicone Free, 1000ml XL Pump. Pro V Miracles Conditioner Enriched with Antioxidants. Visibly Thicker & Fuller Hair

Pantene Lift'N'Volume Thickening Hair Conditioner with Biotin, Silicone Free, 1000ml XL Pump. Pro V Miracles Conditioner Enriched with Antioxidants. Visibly Thicker & Fuller Hair

Nourishes and strengthens fine hair.
Adds volume without silicones.
Certified by Swiss Vitamin Institute.

Main Highlights

SILICONE FREE THICKENING HAIR CONDITIONER: weightless nourishment for visibly fuller & thicker hair in 1 use
FOR THIN HAIR WHICH NEEDS A MIRACLE: this miraculous formula helps strengthen thin, flat hair against styling damage
TAILORED NUTRIENTS & 3X MORE PRO-V: formula enriched with biotin, protein strengthener and our highest concentration of Pro-V, 3X more versus Pantene repair & protect shampoo
DESIGNED BY EXPERTS: Our uniquely innovative formula is the result of 75 years of scientific research in Pro-V. It has been certified by the Swiss Vitamin Institute, a world-renowned authority in vitamin efficacy
DAILY CARE FOR THIN HAIR: For best results use all our Lift'n'Volume hair products: shampoo, conditioner, hair thickening treatment and hair oil mist
PUMP BOTTLE: With our convenient 1000ml bottles, you get even more of the conditioner you love and help minimise waste. Simply pull the pump to activate the dispenser and enjoy your product for longer

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Pantene Lift'N'Volume Thickening Hair Conditioner with Biotin, Silicone Free, 1000ml XL Pump. Pro V Miracles Conditioner Enriched with Antioxidants. Visibly Thicker & Fuller Hair

Nourishes and strengthens fine hair.
Adds volume without silicones.
Certified by Swiss Vitamin Institute.

Main Highlights

SILICONE FREE THICKENING HAIR CONDITIONER: weightless nourishment for visibly fuller & thicker hair in 1 use
FOR THIN HAIR WHICH NEEDS A MIRACLE: this miraculous formula helps strengthen thin, flat hair against styling damage
TAILORED NUTRIENTS & 3X MORE PRO-V: formula enriched with biotin, protein strengthener and our highest concentration of Pro-V, 3X more versus Pantene repair & protect shampoo
DESIGNED BY EXPERTS: Our uniquely innovative formula is the result of 75 years of scientific research in Pro-V. It has been certified by the Swiss Vitamin Institute, a world-renowned authority in vitamin efficacy
DAILY CARE FOR THIN HAIR: For best results use all our Lift'n'Volume hair products: shampoo, conditioner, hair thickening treatment and hair oil mist
PUMP BOTTLE: With our convenient 1000ml bottles, you get even more of the conditioner you love and help minimise waste. Simply pull the pump to activate the dispenser and enjoy your product for longer

John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 500ml

John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 500ml

Thickens hair for fuller appearance.
Reduces breakage-induced hair loss.
Boosts thickness in fine hair.

Main Highlights

Provides 200% thicker*, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
Silicone Free
*when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

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John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 500ml

Thickens hair for fuller appearance.
Reduces breakage-induced hair loss.
Boosts thickness in fine hair.

Main Highlights

Provides 200% thicker*, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
Silicone Free
*when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

HASK Thickening Biotin 5-in-1 Leave In Conditioner Spray for all hair types, colour safe, and cruelty-free - 1 175mL Bottle

HASK Thickening Biotin 5-in-1 Leave In Conditioner Spray for all hair types, colour safe, and cruelty-free - 1 175mL Bottle

Adds volume and thickness.
Provides up to 5 benefits.
Has an invigorating scent.

Main Highlights

Thicken and restore | Formulated to help boost and restore strands. This leave-in spray gently removes impurities while nourishing and hydrating to add volume and thickness to fine, thin hair
1 Product, 5 Amazing Benefits! | 1. Detangles to prevent breakage 2. Up to 24-hour frizz control 3. Seals-in moisture 4. Thermal protection 5. Softens & adds shine
Fortify | Transform fine, flat strands into fabulously fuller & thicker hair with the Biotin Boost Thickening Spray
Invigorating Herbaceous Scent | Enjoy the invigorating, herbaceous fragrance of HASK Biotin Boost Thickening collection
Go Big or Go Home with Tri Level Thickening | Volumize, strengthen and fortify your locks

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HASK Thickening Biotin 5-in-1 Leave In Conditioner Spray for all hair types, colour safe, and cruelty-free - 1 175mL Bottle

Adds volume and thickness.
Provides up to 5 benefits.
Has an invigorating scent.

Main Highlights

Thicken and restore | Formulated to help boost and restore strands. This leave-in spray gently removes impurities while nourishing and hydrating to add volume and thickness to fine, thin hair
1 Product, 5 Amazing Benefits! | 1. Detangles to prevent breakage 2. Up to 24-hour frizz control 3. Seals-in moisture 4. Thermal protection 5. Softens & adds shine
Fortify | Transform fine, flat strands into fabulously fuller & thicker hair with the Biotin Boost Thickening Spray
Invigorating Herbaceous Scent | Enjoy the invigorating, herbaceous fragrance of HASK Biotin Boost Thickening collection
Go Big or Go Home with Tri Level Thickening | Volumize, strengthen and fortify your locks

WE ARE PARADOXX Growth Thickening Conditioner - Special Trioplexx Technology Stimulates Scalp and Hair Follicles - Hair Looks Thicker and Healthier - Biotin and Keratin - Natural, Vegan - 250ml

WE ARE PARADOXX Growth Thickening Conditioner - Special Trioplexx Technology Stimulates Scalp and Hair Follicles - Hair Looks Thicker and Healthier - Biotin and Keratin - Natural, Vegan - 250ml

WE ARE PARADOXX

Hair looks fuller instantly.
Boosts healthy hair growth.
Prevents hair breakage effectively.

Main Highlights

Nourish sparse and weakened hair with this 98% natural, rich, thickening conditioner. The nourishing formula will help fortify hair strands, leave hair looking fuller and support healthy hair growth. For best results, use alongside Advanced Scalp Serum - 100% of users agree their hair looks thicker and healthier in just 4 weeks ̇.
Biotin coats the hair shaft, adding nourishment and preventing damage.
Irish Horsetail plant extract makes hair look and feel thicker.
Vegan Keratin strengthens strands while encouraging elasticity for longer, thicker looking hair.
Hyaluronic Acid helps promote hair growth and the thickening of hair strands. Coconut oil helps prevent hair breakage by penetrating the hair strands.
Eucalyptus helps strengthen hair strands for fuller, thicker looking hair.
Powered by proprietary Trioplexx Technology to stimulate the scalp and hair follicles to encourage healthy hair growth, strengthen hair bonds to reduce breakage and add fullness; and energise hair shaft elongation for longer, wider roots.

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WE ARE PARADOXX

WE ARE PARADOXX Growth Thickening Conditioner - Special Trioplexx Technology Stimulates Scalp and Hair Follicles - Hair Looks Thicker and Healthier - Biotin and Keratin - Natural, Vegan - 250ml

Hair looks fuller instantly.
Boosts healthy hair growth.
Prevents hair breakage effectively.

Main Highlights

Nourish sparse and weakened hair with this 98% natural, rich, thickening conditioner. The nourishing formula will help fortify hair strands, leave hair looking fuller and support healthy hair growth. For best results, use alongside Advanced Scalp Serum - 100% of users agree their hair looks thicker and healthier in just 4 weeks ̇.
Biotin coats the hair shaft, adding nourishment and preventing damage.
Irish Horsetail plant extract makes hair look and feel thicker.
Vegan Keratin strengthens strands while encouraging elasticity for longer, thicker looking hair.
Hyaluronic Acid helps promote hair growth and the thickening of hair strands. Coconut oil helps prevent hair breakage by penetrating the hair strands.
Eucalyptus helps strengthen hair strands for fuller, thicker looking hair.
Powered by proprietary Trioplexx Technology to stimulate the scalp and hair follicles to encourage healthy hair growth, strengthen hair bonds to reduce breakage and add fullness; and energise hair shaft elongation for longer, wider roots.

OGX Biotin and Collagen Volumising Hair Conditioner, Thick and Full, with Vitamin B7 Biotin, and Collagen, for Thin Hair, Sulfate Free Surfactants, 577ml

OGX Biotin and Collagen Volumising Hair Conditioner, Thick and Full, with Vitamin B7 Biotin, and Collagen, for Thin Hair, Sulfate Free Surfactants, 577ml

Rich in nutrients for volume.
Imparts thick, full hair look.
Sulphate-free for healthier hair.

Main Highlights

VOLUME and TEXTURE: The OGX Thick and Full plus Biotin and Collagen volumising Conditioner for fine hair with a nutrient-infused formula to give your hair 72plus hours of volume and body, helping lightly condition whilst injecting fullness into every strand of the hair
HEALTHIER HAIR IN JUST 1 WASH: The formulation OGX conditioner featuring OGX Lipi Pro Shield, boasts a formula rich in nourishing lipids and carefully selected moisturizing agents that respect the lipid and protein barrier for strong, beautiful, and healthier feeling hair *vs non conditioning shampoo
REPAIR DAMAGE: The nutrient-infused formula designed for volume and texture contains vitamin B7 biotin to help strengthen hair along with collagen, a building block of healthy hair, this conditioner for fine hair helps create the appearance of thick, and full hair
Available in a bottle made from recycled plastic, with better squeezability, Bottle size remains the same at 385ml

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OGX Biotin and Collagen Volumising Hair Conditioner, Thick and Full, with Vitamin B7 Biotin, and Collagen, for Thin Hair, Sulfate Free Surfactants, 577ml

Rich in nutrients for volume.
Imparts thick, full hair look.
Sulphate-free for healthier hair.

Main Highlights

VOLUME and TEXTURE: The OGX Thick and Full plus Biotin and Collagen volumising Conditioner for fine hair with a nutrient-infused formula to give your hair 72plus hours of volume and body, helping lightly condition whilst injecting fullness into every strand of the hair
HEALTHIER HAIR IN JUST 1 WASH: The formulation OGX conditioner featuring OGX Lipi Pro Shield, boasts a formula rich in nourishing lipids and carefully selected moisturizing agents that respect the lipid and protein barrier for strong, beautiful, and healthier feeling hair *vs non conditioning shampoo
REPAIR DAMAGE: The nutrient-infused formula designed for volume and texture contains vitamin B7 biotin to help strengthen hair along with collagen, a building block of healthy hair, this conditioner for fine hair helps create the appearance of thick, and full hair
Available in a bottle made from recycled plastic, with better squeezability, Bottle size remains the same at 385ml

L'Oreal Paris Elvive Growth Booster Conditioner, Anti Hair Loss and Hair Thickening, with Aminexil, Nianimacide and Ginger Extract, Reduces Hair Loss, 150ml

L'Oreal Paris Elvive Growth Booster Conditioner, Anti Hair Loss and Hair Thickening, with Aminexil, Nianimacide and Ginger Extract, Reduces Hair Loss, 150ml

Reinforces hair fibres effectively.
Reduces hair loss noticeably.
Suitable for thinning hair issues.

Main Highlights

Conditioner For Hair Loss: Growth Booster formula specifically designed for thinning hair or receding lines to reinforce fibres and prolong life.
Aminexil & Ginger Complex: Powered by Growth & Strength complex with Niacinamide to reinforce hair from the roots and support healthier lengths.
78% Agree Reduces Loss: Consumer tested results proven to reduce hair loss for a visibly denser and thicker appearance in just 6 weeks of use.
Strengthens Brittle Fibres: Targets thinning patches and fragile strands to restore strength, suitable for both men and women with early hair loss signs.
Clinically Proven Results: Use daily after Growth Booster Shampoo for professional-grade strengthening and hair thickening results in a 150ml bottle.

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L'Oreal Paris Elvive Growth Booster Conditioner, Anti Hair Loss and Hair Thickening, with Aminexil, Nianimacide and Ginger Extract, Reduces Hair Loss, 150ml

Reinforces hair fibres effectively.
Reduces hair loss noticeably.
Suitable for thinning hair issues.

Main Highlights

Conditioner For Hair Loss: Growth Booster formula specifically designed for thinning hair or receding lines to reinforce fibres and prolong life.
Aminexil & Ginger Complex: Powered by Growth & Strength complex with Niacinamide to reinforce hair from the roots and support healthier lengths.
78% Agree Reduces Loss: Consumer tested results proven to reduce hair loss for a visibly denser and thicker appearance in just 6 weeks of use.
Strengthens Brittle Fibres: Targets thinning patches and fragile strands to restore strength, suitable for both men and women with early hair loss signs.
Clinically Proven Results: Use daily after Growth Booster Shampoo for professional-grade strengthening and hair thickening results in a 150ml bottle.

Charles Worthington Thicker and Fuller Densifying Conditioner, Hair Thickening Conditioner for Fine Hair, Hair Thickening Products for Women and Men, Salon Hair Repair, 250 ml

Charles Worthington Thicker and Fuller Densifying Conditioner, Hair Thickening Conditioner for Fine Hair, Hair Thickening Products for Women and Men, Salon Hair Repair, 250 ml

Charles Worthington

Increases hair density significantly.
Strengthens and protects hair strands.
Promotes longer, healthier hair.

Main Highlights

Enriched with marshmallow flower, this unique technology increases hair density by up to 180 Percent
Plex-repair system helps strengthen the core of the hair and envelops each strand to help reduce breakage and deliver stronger, healthier looking hair
Reduce breakage by up to 90 Percent
Achieve longer, stronger hair
Smooth through wet hair and then rinse thoroughly

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Charles Worthington

Charles Worthington Thicker and Fuller Densifying Conditioner, Hair Thickening Conditioner for Fine Hair, Hair Thickening Products for Women and Men, Salon Hair Repair, 250 ml

Increases hair density significantly.
Strengthens and protects hair strands.
Promotes longer, healthier hair.

Main Highlights

Enriched with marshmallow flower, this unique technology increases hair density by up to 180 Percent
Plex-repair system helps strengthen the core of the hair and envelops each strand to help reduce breakage and deliver stronger, healthier looking hair
Reduce breakage by up to 90 Percent
Achieve longer, stronger hair
Smooth through wet hair and then rinse thoroughly

John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 250ml

John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 250ml

200% thicker, fuller hair.
Reduces hair loss.
Instant thickening boost.

Main Highlights

Provides 200% thicker, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
Silicone Free
*when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

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John Frieda PROfiller+ Thickening Conditioner for Thin, Fine Hair, 250ml

200% thicker, fuller hair.
Reduces hair loss.
Instant thickening boost.

Main Highlights

Provides 200% thicker, fuller hair
Helps reduce hair loss due to breakage
Gives fine, flat hair an instant thickening boost
Expertly formulated with Biotin & Hyaluronic Acid
Vegan Friendly Formula
Silicone Free
*when using PROfiller+ Shampoo, Conditioner & Spray vs. basic shampoo

We scanned 610 products

We reviewed these offers relevant to the Hair Thickening Conditioner within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like KÉRASTASE, John Frieda, Pantene, HASK, WE ARE PARADOXX, OGX, L'Oreal Paris, Charles Worthington, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Hair Thickening Conditioner in the market, we considered we took a deep dive into 3051 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Kérastase Densifique Femme, Thickening & Volumising Conditioner, For Fine Hair, With Hyaluronic Acid, Gluco Peptide & Ceramides, Fondant Densité, 200ml. We love many things about this product by KÉRASTASE. What sets it apart from the competition is Restores fullness on fine hair. , Improves strength and volume. , Protects against external damage.
The best value product for most shoppers and where user satisfaction is continuously the highest is John Frieda ProFiller+ Thickening Shampoo and Conditioner 500ml Duo Pack by John Frieda based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Hair Thickening Conditioner and the best cost-to-value ratio is L'Oreal Paris Elvive Growth Booster Conditioner, Anti Hair Loss and Hair Thickening, with Aminexil, Nianimacide and Ginger Extract, Reduces Hair Loss, 150mlat L'Oreal Paris with a 50% discount.
Our list of the best Hair Thickening Conditioner is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.