Why peptides are the secret to your longest, strongest hair yet

When it comes to achieving healthier, fuller, longer hair, there’s one ingredient making waves in the world of hair care: peptides. But what are peptides exactly and why are they a game changer for your hair?

Let’s break it down.

Peptides are short chains of amino acids, the building blocks of proteins like keratin, which makes up most of your hair. Think of them as messengers that tell your body (and your scalp) what to do.

In hair care, peptides help signal the scalp to improve follicle function, extend the growth phase, and boost the overall strength of the hair fiber. They essentially support the ideal environment for healthier, fuller hair to grow.

• Scalp stimulation: Certain peptides can help stimulate the scalp by enhancing circulation and delivering nutrients to the hair follicles, which may support healthier hair growth.

• Hair strengthening: Peptides may aid in reinforcing the hair’s natural protein structure, potentially reducing breakage and improving elasticity and shine.

• Hair growth support: Some peptides are studied for their ability to extend the hair growth cycle (anagen phase), which can result in thicker, fuller-looking hair over time.

At Keune, we’ve harnessed the power of biomimetic peptides: lab-grown peptides that mimic natural peptides. They stimulate keratin products, strengthen the hair fibre, reduce breakage, and support density.

We’re proud to present Long & Strong, a complete root-to-ends care routine powered by science and nature to give you the hair lengths you’ve been longing for. Designed to nourish the scalp, fortify strands, and support natural hair growth, this advanced formula helps reduce breakage and improve density for visibly fuller hair

At the heart of this range? Our Long & Strong Super Serum.

This peptide serum for the scalp is where the magic happens: the Long & Strong Super Serum: a cutting-edge formula developed to stimulate and strengthen at the source. Powered by biomimetic peptides that mimic your body’s natural growth signals, this fast-absorbing, non-greasy serum revitalizes the scalp, extends the hair growth cycle, and helps reduce visible thinning over time. Other benefits include;

• Stimulates hair growth at the root: Encourages fuller, denser-looking hair from the scalp up.

• Biomimetic peptides for targeted results: Mimics your body’s natural signalling to support healthy, sustained hair growth.

• Strengthens & anchors hair fibers: Helps reduce shedding and improve strand resilience.

• Fast-absorbing & non-greasy: Perfect for daily use — no buildup, no residue.

Consistency is key - especially with the Super Serum. Apply daily for 60 days to see optimal results in growth and density. This routine is perfect for anyone looking to support hair recovery after shedding, boost volume, or achieve longer, stronger strands.

This isn’t just any routine: it’s a hybrid solution that works on both the scalp and the hair fiber. It’s designed to stimulate growth at the root and reinforce the hair shaft from lengths to ends. Ideal for anyone whose hair seems to stop growing, breaks easily, or feels thinner over time.

• Postpartum or after illness, when regrowth is key

• For fine, fragile, or chemically processed hair

• During seasonal transitions, when shedding increases

• For clients concerned with volume, thinning, or breakage

This full routine brings targeted care to the scalp while fortifying every strand, so your hair doesn’t just grow longer, it grows stronger and fuller, too.

Let’s walk through the full Long & Strong routine and how each product supports your hair goals.

Revitalize and reinforce with Long & Strong Strengthening Shampoo, specially formulated to fortify weak, fragile, or damaged hair from root to tip. Gently cleansing while delivering strengthening actives, this shampoo improves resilience, and leaves hair feeling healthier, shinier, and more resilient with every wash.

Support your hair’s strength and resilience with Long & Strong Strengthening Conditioner, a fortifying formula designed to repair damage, and boost softness. Ideal for weakened or brittle hair, this intensive yet lightweight conditioner nourishes from within, leaving strands stronger, smoother, and more resistant to daily stress.

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  scalp serum helps revitalize the scalp, extend the hair growth cycle, and reduce thinning over time.

Boost the look of thickness and strength with Long & Strong Densifying Leave-In Treatment, a targeted formula designed to energize the hair, fortify the hair fiber, and visibly increase hair density over time. Lightweight and fast-absorbing, this no-rinse treatment supports healthier, fuller-looking hair—from root to tip.

The Long & Strong routine isn’t just powerful on paper: it’s proven in practice. In a 60-day clinical study, 94% of participants saw a reduction in hair loss and an increase in the density of new strands. Hair became visibly healthier, with up to 76% more shine and improved strength after just five applications of the Strengthening Shampoo and Conditioner.

*Results from a 60 day clinical study **Instrumental test. Hair treated with Strengthening Shampoo + Strengthening Conditioner vs unwashed hair ***Instrumental test. Damaged hair treated with 5 applications of Strengthening Shampoo + Strengthening Conditioner

Each product in the Long & Strong range is thoughtfully formulated with high-performing ingredients that target both the scalp and the hair fiber. Here’s how the science works:

This advanced technology boosts hair density and strength by fortifying each strand from the inside out. It increases thickness, enhances resistance to damage, and supports the hair’s natural longevity — leaving it fuller, stronger, and healthier with every use.

Inspired by your body’s natural repair system, biomimetic peptides mimic essential proteins to reinforce hair at the cellular level. They help extend the growth phase, strengthen the hair structure, and support long-term density and resilience.

Known for its calming and revitalizing properties, Centella Asiatica stimulates circulation and delivers vital nutrients to the scalp. It works from root to tip to restore strength, boost scalp health, and bring back that thick, vibrant look and feel.

This isn’t just science: it’s also self-care. The Long & Strong fragrance is inspired by a warm summer day in the South of France, with notes of mandarin, bergamot, jasmine, and vanilla. Your new routine doesn’t just work wonders — it smells like one too.

Whether you’re dealing with breakage, hair fall, or thinning strands, the new Long & Strong range offers a complete care routine powered by peptides.

It’s time to treat your scalp like skincare, and give your hair the strength to grow longer than ever before.