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K18 FutureIQ Hair Longevity Serum

Reduce shedding

FEWER VISIBLE GREYS

SCALP LONGEVITY

A nightly scalp serum for the earliest signs of hair aging — shedding, graying and scalp change.

$172.00 CAD

A lightweight leave-in scalp serum powered by proprietary MultiVital™ technology, K18's first multi-pathway system built for premature hair aging. In a 12-week clinical study, users saw reduced hair fall from month one, up to 19,000 more hairs retained by month three, and 70% showed fewer grays. Absorbs fast, leaves no residue, and layers into your existing nighttime routine.

90 mL — a complete 4-week treatment course. Works out to $6.14 per night, or about the cost of a coffee, for a clinically studied nightly serum rather than a styling product. Best results are seen at three months of continuous use.

Title

HOW TO USE

USE ONCE NIGHTLY

  1. Apply 4 droppers, each filled to the line, directly to a damp or dry scalp — one dropper per scalp quadrant.
  2. Start at the hairline, work toward the crown, then finish at the nape.
  3. Massage in evenly until fully absorbed. Do not rinse.

Stylist tips from the Zennkai: section hair into four before applying if your hair is thick or dense. If your hair is long enough, pull it into a loose ponytail so the dropper reaches the scalp cleanly. Apply at night, after your skincare, so it has hours to absorb undisturbed.

 

1 bottle = 4 weeks of nightly use. Reorder around week three so you don't break the course.

Ingredients

Water (Aqua) (Eau), Pentylene Glycol, Dimethyl Isosorbide, Glycerin, Niacinamide, Polysorbate 20, Sodium Benzoate, Hydroxyethylcellulose, Lysine Carboxymethyl Cysteinate, Citric Acid, Zinc Sulfate Heptahydrate, Palmitoyl Dipeptide-52, Hydrolyzed Yeast Protein, Potassium Sorbate, Disodium Phosphate, Polysorbate 60, Palmitoyl Tetrapeptide-20 Amide, Sodium Phosphate, Sodium Nitrate, Sodium Hydroxide.

SCALP TREATMENT

SHEDDING

GRAYING

SCALP AGING

MULTIVITAL TECHNOLOGY

VEGAN

GLUTEN-FREE

CRUELTY-FREE

YOUR HAIR LONGEVITY JOURNEY

Month 1 - RENEWAL

- 100% showed reduced hair fall
- 82% agreed did not contribute to hair oiliness
- 95% agreed did not increase scalp sensitivity

MONTH 2 - MOMENTUM

- Up to 10,000 more hairs retained for volume
- 87% showed increased density
- 100% showed improved scalp barrier

MONTH 3 - VISIBLE TRANSFORMATION

- 70% showed fewer grays
- Up to 19,000 more hairs retained for volume
- 54% said their scalp felt revitalized

Claims above are as stated by K18 on product packaging and brand materials, reproduced here in full. Zennkai has not independently verified them. Clinical figures are drawn from K18's 12-week study; individual results vary.

100%

showed reduced hair fall

+19,000

more hairs for more volume

MORE TO KNOW

Advice from Milajne, Founder & President, Zennkai. Forty years in professional haircare.

Hair aging starts earlier than most people expect

Sixty-nine percent of people notice graying earlier than they anticipated, and 66% notice shedding sooner. These are often signs of premature hair aging, accelerated by stress, chemical services, environment and lifestyle — not simply a number on a birthday card.

Why a scalp serum, and why now

Premature hair aging isn't one problem. Pigment cells slow down, follicle anchorage weakens, and oxidative stress accelerates both. A single-target product addresses one of those at a time, or masks the visible result. MultiVital™ technology combines biomimetic peptides, a root anchoring complex and advanced antioxidants that work together across those pathways at once — helping reduce the breakdown of the root proteins that hold hair in place, supporting the signalling involved in melanin synthesis and transport, and reinforcing the follicle's own defences against oxidative stress. The visible result: grays appear more slowly, shedding is reduced, and the scalp looks and feels healthier.

A note on Metro Vancouver scalps 

Our climate is a quiet contributor to scalp stress. Eight months of damp, cool weather means most of us are indoors under dry forced-air heat, washing in hard water, and going through winter with a scalp barrier that never fully settles. That's the environment FutureIQ is layering into — and it's why the 100% improved scalp barrier result at month two is the number I'd watch first, before the gray count.

Who it's for

FutureIQ is designed for anyone seeing early signs of hair and scalp aging. It performs best for those with less than 30% gray and minimal to moderate shedding. If you are significantly further along, it can still support scalp health, but set expectations on the gray and density claims accordingly.

How K18 describes FutureIQ™

K18 states that FutureIQ™ is clinically proven to defy the visible signs of prematuring biological aging, and that with proprietary MultiVital™ technology it is scientifically proven to help reduce graying, shedding and scalp aging. K18 describes the outcome as hair being reborn with its natural colour.

 

The brand's headline positioning: more hair, less gray — reduce graying, thinning and scalp aging, with up to 19,000 hairs retained for more volume and 70% showing fewer grays.

Inside MultiVital™: three pathways, not one molecule

If you know K18, you know K18PEPTIDE™ — one molecule with one job, reconnecting the keratin chains inside a damaged strand. FutureIQ is built the opposite way, and on purpose.

 

Premature hair aging isn't one failure. Pigment signalling slows, root anchorage weakens, and oxidative stress accelerates both at once. A single-ingredient serum can only meet one of those. MultiVital™ is K18's first multi-pathway system, and each pathway has its own actives doing its own work.

ANCHORING
for shedding

Palmitoyl Dipeptide-52 · Palmitoyl Tetrapeptide-20 Amide

Biomimetic peptides forming K18's root anchoring complex. They support the root proteins that hold hair in place — the structures that weaken first when hair starts shedding earlier than expected. This is the pathway behind 100% of study users showing reduced hair fall in month one.

PIGMENT
for graying

Lysine Carboxymethyl Cysteinate · Zinc Sulfate Heptahydrate

A cysteine derivative paired with zinc. Cysteine sits upstream in the body's melanin and antioxidant pathways, and zinc is a cofactor across follicle function. Together they support the signalling involved in melanin synthesis and transport — the pathway behind 70% showing fewer grays at month three.

DEFENCE
for scalp aging

Niacinamide · Hydrolyzed Yeast Protein

Niacinamide is one of the most studied barrier-support ingredients in all of topical science, and it does the same job on a scalp that it does on skin. Paired with yeast-derived antioxidants, it reinforces the follicle's own defences against oxidative stress. This is the pathway behind 100% showing improved scalp barrier at month two.

And the part most serums skip: DELIVERY

Dimethyl Isosorbide 

Fifth on the ingredient list, ahead of every active. Dimethyl isosorbide is a solvent and penetration enhancer — it is what carries the peptides past the surface of the scalp rather than leaving them sitting on top of it. A scalp serum that doesn't absorb is a scalp serum that doesn't work, which is also why 82% agreed FutureIQ didn't contribute to oiliness.

Three pathways, one nightly application, four droppers. That is what "multi-vital" means, and it is why FutureIQ can address graying, shedding and scalp aging at the same time instead of choosing one.

BUILD YOUR SCALP ROUTINE

Our recommended products to pair with the K18 FutureIQ™ Biomimetic Hair Longevity Serum

K18 FutureIQ Hair Longevity Serum

K18 Peptide Prep Detox Shampoo

Scalp Massager

LOOKING FOR MORE?

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FAQ

What is K18 FutureIQ serum?

K18 FutureIQ is a nightly leave-in scalp serum for early signs of hair aging. It uses MultiVital™ technology — biomimetic peptides, a root anchoring complex and antioxidants — to target shedding, graying and scalp aging together. One 90 mL bottle is a 4-week supply and costs $172 CAD at Zennkai.

How is FutureIQ different from other K18 products?

Every other K18 product uses K18PEPTIDE™ to repair damage inside the hair strand. FutureIQ is a different technology working on a different target: it is applied to the scalp, not the hair, and it addresses follicle and scalp aging rather than breakage. They solve separate problems and can be used together.

How is it different from a traditional anti-gray or hair growth serum?

Premature hair aging is driven by several mechanisms at once — pigment cells slowing, follicle anchorage weakening, and oxidative stress accelerating both. Single-target products address one mechanism or mask the visible result. FutureIQ's multi-pathway approach works across all three.

How long until I see results?

In the 12-week clinical study, 100% of users showed reduced hair fall in month one. Density gains appeared at month two, and 70% showed fewer grays by month three. Plan on three consecutive bottles to judge the full result.

Does FutureIQ work for everyone?

It is designed for anyone experiencing early signs of hair and scalp aging, and performs best for those with less than 30% gray and minimal to moderate shedding.

Will it make my hair greasy or leave residue on my pillow?

No. The serum is lightweight and absorbs quickly. In the study, 82% agreed it did not contribute to oiliness and 95% agreed it did not increase scalp sensitivity. Used as directed, it should not transfer to pillowcases.

Can I apply it to wet or dry hair?

Either. FutureIQ can be applied to a damp or dry scalp with no difference in results. Apply at night so it absorbs undisturbed.

How long does one bottle last?

The 90 mL bottle delivers 4 weeks of nightly use at 4 droppers per night — about $6.14 per night. Reorder around week three to avoid a gap in the course.