You've got the oil. Here's how to get the results.

Rosemary Hair Oil Intense Growth Syrup100ml

The Intense Growth Syrup works on consistency, not quantity.

This page walks you through the exact routine our team recommends — how much to use, how to apply it, how often, and what to expect month by month. Bookmark it. You’ll want it around for the first 12 weeks.

Marie Claire UK Hair Awards 2026 — Winner, Best Hair Growth Oil

Natural Oil Blend

Rosemary, sea buckthorn, castor, sunflower and sweet almond. No silicones, no mineral oil, no fillers.

DERMATOLGIST TESTED

Assessed under dermatological supervision and safety-assessed to UK Cosmetics Regulation standards.

CRUELTY-FREE

Never tested on animals. Vegan-friendly formula, start to finish.

MADE IN THE UK

Blended and bottled in Britain in small batches, so every bottle arrives fresh.

How To Use

Five minutes, two or three times a week. That’s the whole routine.

STEP 1. PREPARE

Start on dry or slightly damp hair, and always before washing if
you can. Section hair into four with your fingers so the scalp is exposed — this is the part that matters, not the lengths.

STEP 2. APPLY

Use the dropper to place 8–10 drops directly onto the scalp, moving section by section. Around 1ml total is plenty for one application; the 100ml bottle is built to last roughly three months at three uses a week.

STEP 3. MASSAGE

Work the oil in with the pads of your fingers (or a scalp massager) using slow, firm circles for 3–5 minutes. The massage is doing as much work as the oil — it lifts circulation to the follicle and helps the blend absorb properly.

STEP 4. TIME

Leave it in for a minimum of 30 minutes. Overnight is better if you have the time — cover with your Hair Halo, our silk bonnet made for exactly this step. It keeps the oil on your scalp instead of your pillow, and the silk means no friction, no frizz and no breakage while you sleep. Any remaining oil on your palms can be smoothed through mid-lengths and ends.

STEP 5. CLEANSE

Wash out with a gentle sulphate-free shampoo. Shampoo the dry oil first, before adding water — it lifts far more easily. Two short washes beat one heavy one.

Your Weekly Hair Ritual

HOW OFTEN?

2 - 3 times a week is the sweet spot. Daily use isn’t more effective — it just builds product on the scalp.

Oily scalp?
If your scalp runs oily, stay at twice weekly and always use it as a pre-wash.

Dry scalp?
If it runs dry or you have coily hair, three times weekly with an overnight soak suits you better.

How Long Should I Use It?

Give it a full 12 weeks before you judge it.

Hair grows around 1cm a month, and a follicle needs a complete cycle to respond to any change in its environment. That means:

Weeks 1–4 — scalp comfort improves first. Less itch, less flaking, less tightness.

Weeks 4–8 — hair feels stronger and less prone to breakage. You may notice less coming away in the brush.

Weeks 8–12 — short new baby hairs appear along the hairline and parting. This is the milestone most people are waiting for.

Beyond 12 weeks — keep going. The people who see the biggest change are the ones who never stopped.

Miss a week and nothing is undone. Just pick it back up.

Before and after comparison of hair growth on a person's head. Before and after hair growth transformation using rosemary hair oil

Ideal if your experiencing

IS THIS FOR ME?

Almost certainly. Here’s where it earns its keep:

  • Anyone noticing thinning at the
    parting, temples or crown
  • Dry, brittle or heat-damaged hair
    that snaps rather than grows
  • Sensitive, itchy or flaky scalps
    that need calming
  • Hair that’s lost its softness,
    shine or bounce
  • Every texture — straight, wavy,
    curly and coily

Suitable for anyone building a consistent scalp and hair-strengthening ritual. Not suitable during pregnancy or breastfeeding without speaking to your GP first, as the formula contains rosemary essential oil.

What To Expect

KEY BENEFITS

  • Scalp soundness
    Creates the calm, balanced scalp condition that healthy hair depends on. Rosemary and sea buckthorn soothe irritation and help control flaking.
  • Stronger from the root
    Castor and sweet almond oils coat and fortify the hair shaft, so strands resist the breakage that stops length ever showing.
  • Deep, non-greasy hydration
    Lightweight enough to sink in rather than sit on top. No weighed-down roots, no film on the lengths.
  • Genuinely multi-use
    Scalp treatment, pre-wash mask, overnight soak, shine finisher, frizz tamer, split-end sealer. One bottle, six jobs.

WAYS TO USE YOUR OIL

One oil, three routines. Pick the one that fits your week — or rotate all three.

The core routine.

Apply to a dry scalp 30–60 minutes before washing, massage for five minutes, then shampoo out. Best for oily or fine hair, and the fastest way to feel a difference in scalp comfort. Twice weekly.

The deep one.

Same application, but left in overnight under your Hair Halo. The extended contact time gives dry, coarse, curly and coily hair a much deeper conditioning result, and the silk bonnet keeps every drop where it belongs. Once or twice weekly, washed out the following morning.

The finishing touch.

Warm 2–3 drops between your palms and smooth over dry mid-lengths and ends. Tames frizz, seals split ends and adds shine. Use before heat styling as a barrier, or on damp hair before air-drying. Avoid the roots for this one.

Key Ingredients

ROSEMARY OIL

The hero. Long used to stimulate the scalp and support circulation at the follicle — and the ingredient behind the entire rosemary-oil movement.

SEA BUCKTHORN OIL

Rich in omegas 3, 6, 7 and 9 plus vitamin E. Conditions the scalp and supports the skin barrier where hair actually begins.

CASTOR OIL

The strengthener. A thick, ricinoleic-acid-rich oil that coats and fortifies each strand to reduce snapping and split ends.

SWEET ALMOND & SUNFLOWER OILS

The carriers. Light, fast-absorbing and vitamin-rich — they deliver everything else into the scalp without the heaviness.

 
A round silicone scalp massager with multiple cone-shaped silicone spikes, shown on a warm beige background with soft diagonal shadows. Rosemary hair oil, scalp massager, soothe, essential, hair growth, stimulate, health, haircare, UK
 
Rosemary hair oil, pure silk hair bonnet, hairhalo, uk, haircare, healthy hair, mulberry silk, 100%

Complete the ritual

PAIR WITH

Two products turn the routine into something you’ll actually keep up.

The massage is half the routine. The massager makes the five minutes easier on your fingers and works the oil right down to the scalp — and it works just as well on dry hair between treatments.

The overnight step, solved. Our silk bonnet holds the oil against your scalp all night instead of losing half of it to your pillowcase —and because silk doesn’t grip the hair the way cotton does, you wake up without the friction, frizz and breakage. If you’re doing overnight treatments, this is the one piece of kit you shouldn’t skip.

Frequently asked questions

Stop use and rinse the area. As with any new product, patch test on the inner elbow 24 hours before first use if you have a sensitive or reactive scalp.

Beard and brows, yes — a drop or two, massaged in. Avoid the lash line and keep it away from the eyes.

It makes a real difference. Without it a good share of the oil transfers to your pillow rather than working on your scalp, and cotton pillowcases create the friction that causes overnight frizz and breakage. The Hair Halo is designed for this exact step — silk, so it holds the treatment in
place and lets hair move rather than snag.

Almost certainly, yes — you’re just early. Scalp comfort improves first, strength follows, and visible new growth typically shows from around week eight to twelve. Hair grows roughly 1cm a month, so give it a full cycle.

Speak to your GP or midwife first. The formula contains rosemary essential oil, which is usually advised against during pregnancy and breastfeeding.

About three months at three applications a week, using it on the scalp as directed.

You can, but you don’t need to. Two to three times a week gives the same result without product building up on the scalp.

Not if you use it as directed. Eight to ten drops on the scalp is enough — most greasiness comes from over-applying or from applying to the lengths rather than the scalp. Use it pre-wash and it rinses away completely.

Shampoo before you wet your hair. Massage shampoo straight into the dry, oiled scalp, then add water and rinse. Follow with a second short wash if needed. Adding water first makes oil far harder to lift.

Yes. There’s nothing in the formula that strips or fades colour, and the conditioning oils are especially useful on processed hair. Leave 48 hours after a fresh colour service.

Rosemary hair oil, magazine, feature, Glamour
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