Fuller hair in 90 days. Clinically backed.
6-month randomised trial. Comparable hair count. Less scalp irritation. One bottle, twice a week — no prescription.
30-day money-back guarantee · Free UK shipping over £40
Featured product
Rosemary Hair & Scalp Strengthening Oil
Cold-pressed botanicals at the dose the clinical trial actually used. Twice a week. No prescription, no irritation.
- Clinically dosed (2%)
- Cold-pressed actives
- Direct Follicle Delivery™
- EU-formulated, ECOCERT
Rosemary Hair & Scalp Strengthening Oil
Why trust Rootwelle?
Built on the science you can verify, the standards you can audit.
Clinically-backed science.
Three mechanisms working in concert to reawaken dormant follicles, rooted in 15 years of botanical research.
End Follicle Starvation
Hair thinning starts when follicles stop receiving the nutrients they need to produce healthy strands. Our cold-pressed botanical actives reach the scalp at clinically-active concentrations to feed depleted roots.
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Direct Follicle Delivery™
Where most rosemary oils sit on the surface, our lipid-soluble carrier base — sweet almond and argan — penetrates the scalp barrier and delivers actives directly to the follicle bulb.
Shop Now ›Reawaken Dormant Roots
Rosemary and peppermint stimulate scalp microcirculation, signalling resting follicles to re-enter the growth phase. Clinically matched to minoxidil 2% in the Panahi 2015 trial — without prescription or irritation.
Shop Now ›Not just another rosemary oil.
Generic rosemary oils stop at the ingredient. Ours is engineered around it — with 25+ botanicals working in concert at clinically-meaningful concentrations.
Comparison based on typical formulations of high-street rosemary oils sold for scalp application. Clinical rosemary concentration based on Panahi et al., 2015.
Every drop, intentional.
Nutrient-rich oil infused with rosemary and peppermint, engineered to nourish the scalp, improve hair resilience, and restore shine to dry or brittle hair.
A 15-minute ritual, twice a week.
- Apply 4–5 drops directly to a dry or damp scalp, focusing on the parting and hairline.
- Massage gently for 60 seconds to stimulate circulation.
- Leave in for at least 15 minutes — overnight for deeper treatment.
- Wash out with a gentle shampoo. Use consistently for 90 days for best results.
Clinically studied against minoxidil 2% for pattern hair loss. Stimulates follicle activity and circulation at the scalp.
Shown to increase follicle depth and dermal thickness. Delivers a cooling tingle that signals active delivery.
Rich in vitamin E and linoleic acid. Seals moisture into the hair shaft without weight or residue.
Traditional support for DHT-linked hair thinning. Supplies iron, silica, and sulphur direct to the scalp.
Full INCI list ⌄
Helianthus Annuus (Sunflower) Seed Oil①, Decyl Cocoate, Ricinus Communis (Castor) Seed Oil①, Prunus Amygdalus Dulcis (Sweet Almond) Oil①, Argania Spinosa (Argan) Kernel Oil①, Parfum/Fragrance, Cannabis Sativa (Hemp) Seed Oil①, Olea Europaea (Olive) Fruit Oil①, Persea Gratissima (Avocado) Oil①, Mentha Piperita (Peppermint) Oil①, Rosmarinus Officinalis (Rosemary) Leaf Oil①, Urtica Dioica (Nettle) Leaf Extract①, Menthol②, Limonene②, Camphor②, Pinene②, Citrus Aurantium Bergamia Peel Oil, Linalool②, Beta-Caryophyllene②, Vanillin, Linalyl Acetate②, Eugenia Caryophyllus Oil, Eugenol②, Citrus Aurantium Peel Oil, Citrus Limon Peel Oil, Pogostemon Cablin Oil, Santalol②, Coumarin**, Carvone②.
From Excess Shedding to Thicker-Looking Hair
Documented progress from real customers regaining their confidence over 2–6 months.
"After struggling with constant shedding, within a few weeks there was way less hair in my brush and shower. By month two my parting already looked fuller."
"I didn't want to get my hopes up but the tiny hairs along my hairline are coming through. Three months in and my bun doesn't look wispy anymore."
"Perimenopause thinned my hair faster than I could believe. Four months of Rootwelle and my stylist actually commented on the regrowth at my temples."
Growth that builds over time.
Scalp Rebalance
The scalp microbiome begins to normalise. Itch and flakiness quiet down as circulation improves at the follicle.
Visible Density
Baby hairs emerge at the hairline and parting. Existing strands feel thicker and less prone to shedding.
Restored Fullness
The clinical-study timeframe. Follicle activity is measurably higher, and regrowth stabilises for lasting fullness.
Formulated to really work
reported measurable regrowth within the clinical study window.*
increase in follicle count vs baseline over six months.*
said their parting looked visibly denser after three months.
noticed less shedding within the first four weeks of use.
*Panahi et al., 2015. Rosemary oil vs minoxidil 2% for the treatment of androgenetic alopecia. A randomised comparative trial.
Real results, real timelines.
Documented Results
- Clinically-studied rosemary extract, 2% concentration
- Measurable regrowth documented in 3 months
- Applied twice weekly, 4–5 drops per session
- Documented across 90-day clinical usage period
Still wondering if it's for you?
The honest answers to what we get asked most — from women navigating the same decision you are right now.
Will this work for perimenopausal or menopausal hair thinning?
Yes — and this is actually who we built the formula for. Hormonal shifts during peri and menopause cause DHT-related miniaturisation at the follicle, which is exactly what rosemary oil has been clinically shown to counteract.
Our nettle leaf extract works alongside the rosemary to support natural DHT balance. Most of our 35–50-year-old customers notice less shedding within 4–6 weeks, with visible density changes by month three.
Can I use this alongside minoxidil or finasteride?
Yes. Rootwelle is a topical botanical oil and doesn't interfere with either treatment. Many of our customers use it as a gentler add-on to reduce the dryness and irritation minoxidil is known for.
If you're using a prescription treatment, we recommend applying Rootwelle on non-minoxidil days, or 2–3 hours apart, so each product absorbs fully.
How long before I'll actually see results?
Reduced shedding: 2–4 weeks. This is usually the first signal it's working.
Visible density changes: 6–12 weeks. Baby hairs along the hairline and parting tend to be the first visible regrowth.
Full restored fullness: 90 days+, in line with the Panahi 2015 clinical study timeline.
Is it safe during pregnancy or breastfeeding?
Rosemary and peppermint essential oils aren't recommended at therapeutic concentrations during pregnancy, so we don't recommend Rootwelle during pregnancy or the first six months of breastfeeding.
For postpartum shedding, we'd suggest waiting until you've finished breastfeeding or speaking to your GP. Your hair usually restores on its own within 6–12 months postpartum.
How long does one 30ml bottle last?
Approximately 6–8 weeks at our recommended twice-weekly ritual (4–5 drops per session). Most customers start on a single bottle to trial it, then switch to subscription once they see early signs of reduced shedding.
What if it doesn't work for me?
Our 90-day thicker hair guarantee means exactly that — if you're not seeing visible difference after 90 days of consistent use, we'll refund you in full. No forms, no drama, no "send it back half-empty" catch.
Hair regrowth is deeply personal and we'd rather refund a customer than have them stuck with a product that isn't the right fit.
Is it greasy? Do I have to wash my hair after every application?
The oil base is cold-pressed sunflower and sweet almond, chosen specifically because they absorb cleanly — not mineral oil, not silicones. Most customers apply it in the evening, leave it in for 15–20 minutes, then wash as normal.
If you have fine or oily hair, you can apply it before a wash day rather than overnight. A little goes a long way — you're treating the scalp, not saturating the strands.
Does it smell strong?
It's distinctly herbal — rosemary and peppermint are the dominant notes, softened by argan and sweet almond. Most customers describe it as "spa-like" or "apothecary". It's not perfumed, it's the real essential oils doing the work.
The scent fades within an hour of application and fully washes out.
Is the packaging recyclable?
Yes. The glass bottle and dropper are fully recyclable — we chose glass over plastic specifically to preserve the integrity of the cold-pressed oils. Outer packaging is FSC-certified recycled card.
Still not sure?
We're real humans, not a chatbot. Message us and we'll answer honestly — even if Rootwelle isn't the right fit for you.
Talk to the team →