A lightweight, fast-absorbing scalp serum with biomimetic peptides, caffeine, ginseng, and biotin. It energizes the scalp for stronger, fuller-looking hair from the roots.
A lightweight, fast-absorbing scalp serum with biomimetic peptides, caffeine, ginseng, and biotin. It energizes the scalp for stronger, fuller-looking hair from the roots.
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4300
$43.00
Low in stock
Long & Strong Super Serum is the targeted scalp step in Keune’s award-winning Long & Strong routine, which won a 2026 Dutch Beauty Award in hair care. This light, leave-on serum is made to revitalize the scalp and support stronger, healthier-looking hair right at the root.
Biomimetic peptides: Acetyl tetrapeptide-3 helps strengthen and anchor hair fibres for fuller-looking roots.
Energize the scalp: Caffeine and panax ginseng root extract invigorate and refresh the scalp.
Nourish: Biotin, red clover flower extract, and hydrolyzed soy protein support stronger-looking strands.
Soothe: It’s scalp microbiome-friendly, with calming care for a balanced, comfortable scalp.
Weightless: The fast-absorbing, non-greasy formula won’t weigh hair down.
It’s designed for daily use over 60 days. The formula is vegan, silicone-free, gluten-free, and cruelty-free.
Cleanse with Long & Strong Shampoo and Conditioner, then towel-dry.
Part hair into sections and apply the serum directly to the scalp, section by section.
Massage in gently.
Do not rinse. Style as usual.
Use daily for 60 days for best results.
For the full routine: Finish the lengths with Long & Strong Densifying Leave-In.
All hair types and textures, especially fine, thin, fragile, or low-density hair, and seasonal or postpartum shedding. It’s ideal for anyone wanting a healthier-feeling scalp and stronger, fuller-looking hair at the roots. Safe for colour-treated hair.
Keune has been perfecting hair care since 1922. It all started with Jan Keune, a pharmacist from Amsterdam, and his fascination for curls. Today it’s one of the last family-owned professional hair care brands in the world.
Salon Professional Quality
The Style line was developed with top hair professionals and scientists, built on breakthrough formulas that set a new standard for styling. Keune Style was developed in collaboration with the top hair professionals and scientists worldwide.
Sustainability Commitment
Vegan, cruelty-free and B Corp certified. Keune is a B Corp certified family business, and the entire Style line is not tested on animals and carries the vegan quality mark, with one exception: the Restyler.
Worldwide Renown
Trusted by stylists in more than 80 countries. Keune products have been made in Amsterdam since 1922 and are distributed to more than 80 countries. A favourite of salons and hairdressers everywhere for every hair type.
