LINIGROW Peptide Hair Growth Serum bottle held in soft natural light
Peptide scalp serum · 30 ml

Healthy-looking hair starts at the scalp

LINIGROW is a lightweight peptide serum made to nourish your scalp and support the natural vitality of your hair — one dropper, every day, in under a minute.

30-day guarantee · Secure checkout

Hair parted to expose the scalp before applying LINIGROW serum
The part most routines skip

Your hair care stops at your hair. Your scalp is where it starts.

Most routines treat length and ends — the part you can see — and never touch the skin the hair actually grows from. When the scalp is dry, tight or simply ignored, hair tends to look flatter and feel weaker than it used to.

LINIGROW was made for that gap: a serum you apply to the scalp itself, not to your lengths.

  • A dry, tight scalp that nothing in your routine addresses
  • Hair that looks flat and thinner than you remember
  • Oils and masks that coat the hair but never reach the roots
  • A routine so long you quietly stop doing it after a week
Why it earns its place

Four reasons people keep the bottle out

No long routine, no heavy finish — just one step aimed at the place most hair care never reaches.

Scalp-first care

It goes where hair actually grows. You part the hair, apply to the skin and massage it in — no guesswork about where the product lands.

Light enough for every day

A serum, not an oil. It absorbs quickly and leaves hair feeling clean rather than coated or weighed down.

Built on peptides

Peptides are short chains of amino acids long used in modern skincare. LINIGROW brings that same approach to the scalp.

How to use

Three steps, once a day

On clean or dry hair — whichever suits your day.

Part and target

Part your hair in a few places so you can reach the scalp directly, not just the hair sitting on top.

Apply a few drops

Squeeze the dropper along each parting, working section by section so the serum lands on the skin.

Massage it in

Use your fingertips, not your nails, for about thirty seconds. Leave it in — there is nothing to rinse out.

LINIGROW serum texture shown on a glass dropper
What is inside

A peptide serum, kept deliberately simple

LINIGROW is built around peptides — short chains of amino acids that have become a staple of modern skincare — carried in a light serum base you apply directly to the scalp.

The format matters as much as the formula. A 30 ml dropper lets you place the product exactly where you want it, which is the difference between a serum that treats your scalp and a product that only coats your hair.

  • Peptide-based formula
  • Light serum base rather than an oil
  • 30 ml dropper bottle
  • Leave-in — applied to the scalp, never rinsed out
LINIGROW serum bottle styled on a calm neutral surface
Our standard

One product. Made properly.

LINIGROW is a single-product brand, and that is a decision rather than a limitation. One formula means we can be specific about what it is for, honest about what it does, and careful about how it is made.

We would rather sell you one thing you keep using than a shelf of things you try once.

  • One formula, one job: scalp care
  • No padded routine you will never follow
  • Claims kept to what the product honestly is
  • Backed by a 30-day guarantee
Good to know

Frequently asked questions

Everything people ask before their first bottle.

What exactly is LINIGROW?

LINIGROW Peptide Hair Growth Serum is a 30 ml peptide serum made to be applied directly to the scalp. It is a leave-in product: you part your hair, apply a few drops to the skin, massage it in and carry on with your day.

How often should I use it?

Once a day is the routine it was designed around. Morning or night both work — pick the one you will actually keep up with.

Will it make my hair greasy?

It is a serum rather than an oil, with a light texture meant to absorb into the scalp instead of sitting on the hair. Apply it to the scalp rather than the lengths and it should not weigh your hair down.

Do I need to rinse it out?

No. It is a leave-in serum. Apply it, massage it in and leave it.

Does my hair need to be freshly washed?

No. Clean or dry hair both work, which is rather the point of a light serum — you do not have to plan a wash day around it.

What if it is not for me?

Every order is covered by our 30-day guarantee. If the serum is not working for you, contact us within 30 days of delivery and we will put it right.

Stay in the loop

Scalp care, without the noise

Occasional emails on getting the most out of the serum, and a heads-up when something new lands. Nothing daily.

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