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Long & Strong Serum

CHF 39.90

In stock

100ml
Stimulate and strengthen with Long & Strong Super Serum, a cutting-edge formula designed to support healthier, fuller-looking hair from the root. Powered by biomimetic peptides that mimic the body’s natural growth signals, this lightweight serum helps revitalize the scalp, extend the hair growth cycle, and reduce thinning over time.
More Information
Inhaltstoffe
Aqua (Water), Alcohol Denat., Glycerin, Butylene Glycol, PEG-40 Hydrogenated Castor Oil, Lecithin, Hydrolyzed Soy Protein, Parfum (Fragrance), Sodium Benzoate, Citric Acid, Caffeine, 3-Aminopropane Sulfonic Acid, Sodium Chondroitin Sulfate, Sodium Hydroxide, Panax Ginseng Root Extract, Biotin, Quaternium-51, Dextran, Dipropylene Glycol, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower extract, Benzyl Salicylate, Citrus Aurantium Bergamia (Bergamot) Peel Oil, Citrus Aurantium Peel Oil, Geraniol, Hexamethylindanopyran, Hydroxycitronellal, Limonene, Linalool, Linalyl Acetate, Tetramethyl Acetyloctahydronaphthalenes, Vanillin
Product type:
Hair Serum
Benefit:
repair, renforcement
clean Beauty:
cruelty free, vegan
Brand:
Care
Item number:
21608

Product ratings

Strengthen and nourish strong hair with Keune's lightweight conditioner.
Strengthen and nourish strong hair with Keune's lightweight conditioner.
Strengthen and nourish strong hair with Keune's lightweight conditioner.
Strengthen and nourish strong hair with Keune's lightweight conditioner.

WHY IT PERFORMS

Stimulates Hair Growth at the Root
Encourages fuller, denser-looking hair
Biomimetic Peptides for Targeted Results
Mimics natural signalling to support healthier growth
Strengthens & Anchors Hair Fibers
Helps reduce shedding and improve strand resilience
Fast-Absorbing & Non-Greasy
Ideal for daily use with no residue

WHO IT IS FOR

For anyone experiencing a reduction in hair density,
hair loss and weakened, fragile hair.

THE RESULT

→ 94% of the research participants presented
a reduction in hair loss, as evidenced by a significant
increase in the anagen/telogen ratio, after 60 days
→ 94% of the research participants presented an
increase in the density of new hair strands after 60 days




HOW TO USE

Cleanse with Care Long & Strong Shampoo and
Conditioner. Towel-dry and apply to scalp section
by section. Massage in gently. Do not rinse.Style as usual.

Long & Strong Shampoo
Piece
Long & Strong Shampoo
80ml 300ml 1000ml
CHF 24.90
Long & Strong Conditioner
Piece
Long & Strong Conditioner
80ml 250ml 1000ml
CHF 25.90
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
Long & Strong Leave-In
Piece
Long & Strong Leave-In
100ml
CHF 34.00
-20%
Long & Strong Rituals Set
Piece
Long & Strong Rituals Set
Set
CHF 162.20 CHF 129.00
-10%
Long & Strong Boost Set
Piece
Long & Strong Boost Set
Set
CHF 98.80 CHF 89.00
NEW

Scientific
Breakthrough

Tech/Ingredients: Biomimetic Peptides, Red Clover Extract, Marine Density Infusion, Centella Asiatic

Discover more


Delivery within 2 business days
& free for orders from CHF 120.—

How does Long & Strong help
6,000 people daily with hair loss?

You are not alone!



Who is the Long & Strong line suitable for?

For weakened, brittle, or fragile hair and
anyone experiencing hair loss.



How soon will I see results?

94% of participants experienced reduced hair loss
after 60 days of use, based on clinical proof.



How does Scientific Breakthrough work?

With Scientific Breakthrough, it reinforces the
hair fiber to prevent breakage and repairs damage.



How does Long & Strong help strengthen hair?

Its formula reinforces the hair fiber to prevent breakage, repairs damage
and boosts shine by sealing the cuticle.


Our Value
Experience the world of Keune

Related articles

Long & Strong Shampoo
Piece
Long & Strong Shampoo
80ml 300ml 1000ml
CHF 24.90
Long & Strong Conditioner
Piece
Long & Strong Conditioner
80ml 250ml 1000ml
CHF 25.90
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
Long & Strong Leave-In
Piece
Long & Strong Leave-In
100ml
CHF 34.00
CARE White Dispenser 1L
Sold out
CARE White Dispenser 1L
Stk. Stk.
CHF 6.50
-20%
Long & Strong Rituals Set
Piece
Long & Strong Rituals Set
Set
CHF 162.20 CHF 129.00
-10%
Long & Strong Boost Set
Piece
Long & Strong Boost Set
Set
CHF 98.80 CHF 89.00
Strengthen and nourish strong hair with Keune's lightweight conditioner.
Strengthen and nourish strong hair with Keune's lightweight conditioner.
Strengthen and nourish strong hair with Keune's lightweight conditioner.

THE RESULT

→ 94% of the research participants presented
a reduction in hair loss, as evidenced by
a significant increase in the anagen/telogen
ratio, after 60 days
→ 94% of the research participants presented an
increase in the density of new hair strands
after 60 days.

WHO IT IS FOR

For anyone experiencing a reduction in hair density,
hair loss and weakened, fragile hair.


HOW TO USE

Cleanse with Care Long & Strong Shampoo and
Conditioner. Towel-dry and apply to scalp section
by section. Massage in gently. Do not rinse. Style
as usual.

WHY IT PERFORMS

Stimulates Hair Growth at the Root
Encourages fuller, denser-looking hair
Biomimetic Peptides for Targeted Results
Mimics natural signalling to support
healthier growth
Strengthens & Anchors Hair Fibers
Helps reduce shedding and improve
strand resilience
Fast-Absorbing & Non-Greasy
Ideal for daily use with no residue

Scientific Breakthrough

Tech/Ingredients: Biomimetic Peptides,
Red Clover Extract, Marine Density Infusion, Centella Asiatic

Explore more

Long & Strong Shampoo
Piece
Long & Strong Shampoo
80ml 300ml 1000ml
CHF 24.90
Long & Strong Conditioner
Piece
Long & Strong Conditioner
80ml 250ml 1000ml
CHF 25.90
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
Long & Strong Leave-In
Piece
Long & Strong Leave-In
100ml
CHF 34.00
-20%
Long & Strong Rituals Set
Piece
Long & Strong Rituals Set
Set
CHF 162.20 CHF 129.00
-10%
Long & Strong Boost Set
Piece
Long & Strong Boost Set
Set
CHF 98.80 CHF 89.00


Delivery within 1 business day
& free for orders from CHF 110.—

How does Long & Strong
help 6,000 people daily with hair loss?

You are not alone

Long & Strong Shampoo
Piece
Long & Strong Shampoo
80ml 300ml 1000ml
CHF 24.90
Long & Strong Conditioner
Piece
Long & Strong Conditioner
80ml 250ml 1000ml
CHF 25.90
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
Long & Strong Leave-In
Piece
Long & Strong Leave-In
100ml
CHF 34.00
CARE White Dispenser 1L
Sold out
CARE White Dispenser 1L
Stk. Stk.
CHF 6.50
-20%
Long & Strong Rituals Set
Piece
Long & Strong Rituals Set
Set
CHF 162.20 CHF 129.00
-10%
Long & Strong Boost Set
Piece
Long & Strong Boost Set
Set
CHF 98.80 CHF 89.00

Your questions,
Our answers



Who is the Long & Strong line
suitable for?

For weakened, brittle, or fragile hair
and anyone experiencing
hair loss.



How soon will I see
results?

94% of participants experienced reduced
hair loss after 60 days of use,
based on clinical proof.



How does Long & Strong help
strengthen hair?

With Scientific Breakthrough, it reinforces
the hair fiber to prevent breakage
and repairs damage.



How does Long & Strong
help strengthen hair?

Its formula reinforces the hair fiber to prevent
breakage, repairs damage and boosts
shine by sealing the cuticle.

Related articles

Long & Strong Shampoo
Piece
Long & Strong Shampoo
80ml 300ml 1000ml
CHF 24.90
Long & Strong Conditioner
Piece
Long & Strong Conditioner
80ml 250ml 1000ml
CHF 25.90
Long & Strong Leave-In
Piece
Long & Strong Leave-In
100ml
CHF 34.00
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
CARE White Dispenser 1L
Sold out
CARE White Dispenser 1L
Stk. Stk.
CHF 6.50
-20%
Long & Strong Rituals Set
Piece
Long & Strong Rituals Set
Set
CHF 162.20 CHF 129.00
-10%
Long & Strong Boost Set
Piece
Long & Strong Boost Set
Set
CHF 98.80 CHF 89.00
Long & Strong Serum
Piece
Long & Strong Serum
100ml
CHF 39.90
Royal Tribute Hair Serum
Piece
Royal Tribute Hair Serum
50ml
CHF 48.00
Scalp Sensitive Shampoo
Piece
Scalp Sensitive Shampoo
1000ml 300ml
CHF 69.00
Instant Revive Flash Mask
Piece
Instant Revive Flash Mask
1000ml 250ml
CHF 31.90
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