Rosemary Leaf Oil — The Growth Standard
Dosed at 2.5%, five times a typical serum. The most researched oil for hair density.
0.5mm precision
Dermatologist approved
All-natural actives
Non-greasy formula
120-day guarantee
Rated 4.9 • Thousands of 5-Star Reviews
Clinical Hair Regrowth System for Women
Fuller, Stronger Hair Starts at the Root
A lightweight botanical serum and precise micro-channel system designed to support thinning parts, fragile edges, and visibly fuller hair — without tangling long hair.
Supports Thinning Parts
Strengthens Fragile Edges
Botanical Growth Actives
Lightweight, Non-Greasy
No-Tangle 0.5mm Stamp
Made in the USA
93% Sold
£38.00
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FREE DearRoot™ Derma Stamp (£19.99 Value)Targets thinning zones
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Buy 3 — Get 2 FREE Gifts
3 Bottles · Cancel anytime
FREE Shipping (£4.95 Value)Included with every DearRoot order
FREE DearRoot™ Derma Stamp (£19.99 Value)Targets thinning zones
FREE DearRoot™ Derma Roller (£19.99 Value)Boosts serum absorption
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Description
DearRoot™ combines precision 0.5mm micro-channel delivery with a concentrated botanical Root Activator Serum in one simple at-home system.
At the center is clinically studied rosemary leaf oil, dosed at 2.5%, alongside ginger root oil, biotin, castor seed oil, peppermint oil, cold-pressed jojoba oil, and natural vitamin E. Together, these actives help support a healthier scalp environment, reinforce strands against breakage, and promote the look of thicker, fuller hair.†
Two steps working together in one daily ritual — targeted scalp stimulation on one side, concentrated plant-based nourishment on the other.
No silicones, no parabens, no synthetic fragrance. Just lightweight root care that absorbs cleanly and is built for consistency.
About Your Free Gifts
These accessories are designed to make your DearRoot routine more precise, more consistent, and more effective. Yours included free as a thank you for trying DearRoot.
DearRoot™ Derma Stamp:
Our DearRoot™ Derma Stamp is designed to target thinning zones with precise 0.5mm micro-channels, helping prep the scalp before applying your Root Activator Serum. With 140 titanium pins, it presses straight down into the scalp so you can focus on areas like the temples, crown, hairline, or sparse patches without pulling through your hair. A simple tool that turns your nightly serum step into a true root-care ritual.
DearRoot™ Derma Roller:
Our DearRoot™ Derma Roller is designed to support serum absorption across broader areas of the scalp. Use it before applying your Root Activator Serum to help create a better pathway for the formula to reach the areas where it is needed most. Compact, easy to use, and built for consistency, it helps make your DearRoot routine feel intentional from the very first application.
Who Is This For?
DearRoot™ is designed for anyone noticing thinning, shedding, a widening part, sparse areas, or a hairline that does not feel as full as it used to.
It is especially helpful if you want a simple, plant-based scalp routine that fits into your day without harsh formulas, greasy residue, or complicated steps. Use consistently as part of your root-care ritual for the best experience.
Recommended Use
Apply consistently to a clean, dry scalp, focusing on areas where you want fuller-looking hair. Use as directed with the instructions included in your DearRoot™ system, then allow the serum to fully absorb before styling.
Do You Offer a Guarantee?
Yes. Every DearRoot™ order is backed by our 120-day guarantee.
Use DearRoot consistently for a full 120 days. If you are not satisfied with your experience, contact our support team within the guarantee period and we’ll help you with your return.
DearRoot Growth System
£38.00 · 120-day guarantee
4 Clinically-Studied Compounds Doing Different Jobs
Ginger Root Oil — The Deep Purifier
Clears buildup and wakes the follicle base, so the actives can reach the root.
Biotin (Vitamin B7) — The Strand Builder
Reinforces keratin against breakage, so new growth holds on instead of snapping.
Castor Seed Oil — The Moisture Seal
Dosed at 5%. Seals in moisture for thicker-looking strands.
Why topical serums stall
Reach the root without tangling your hair
Most hair oils sit on the surface. When the scalp barrier stays intact, expensive growth compounds struggle to reach the follicle environment where support is needed most.
The better way — precise micro-channel delivery. The DearRoot derma stamp presses straight in and out at 0.5mm, creating clean channels without rolling across or pulling long hair. Apply the Root Activator Serum immediately after to deliver the botanical actives where they matter.
- Targets thinning parts and edges — without dragging through strands.
- Supports circulation — helping deliver oxygen and nutrients to the follicle.
- Lightweight finish — absorbs quickly without an oily-looking root.
Inside the Root Activator Serum
Clinically dosed. Nothing hidden.
Most "growth oils" hide a drop of active behind a long fragrance list. Here's exactly what's in the Root Activator formula — and how it compares to a typical drugstore serum.
Active compound
Typical serum
DearRoot
Potency
What you get
Rosemary Leaf Oil
Rosmarinus Officinalis0.5%
2.5% active
+400%
Regrowth shown on par with 2% minoxidil
Ginger Root Oil
Zingiber OfficinaleNot included
1.5%
NEW
Clears buildup and wakes the follicle base
Biotin
Vitamin B70.1%
0.5%
+400%
Reinforces keratin against breakage
Castor Seed Oil
Ricinus Communis2%
5%
+150%
Seals in moisture for thicker-looking strands
Peppermint Oil
Mentha Piperita0.25%
1%
+300%
Drives circulation and oxygen to the scalp
Jojoba Oil
Simmondsia ChinensisRefined
Cold-pressed
UPGRADE
Sebum-matched; absorbs with zero residue
Vitamin E
TocopherolSynthetic
Natural D-alpha
UPGRADE
Antioxidant shield for a healthier scalp
Swipe to see all columns
No silicones, no parabens, no synthetic fragrance. Full INCI list printed on every bottle.
The science of women’s follicle activation
Three phases. One root-first system.
Phase 01 · Precise stimulation
The no-tangle stamp
The 0.5mm stamp presses straight into targeted parts and edges, creating precise micro-channels without rolling across or pulling long hair.
Phase 02 · Activation
The healing response
The micro-channels activate the scalp’s natural renewal response, supporting blood flow and nutrient delivery around weakened follicles.
Phase 03 · Nourishment
The Root Activator Serum
Rosemary, ginger, biotin, and complementary botanicals flow through the fresh channels to support stronger roots and a longer growth phase.
4.9
10,839 verified reviews
Real results from women like you
Verified buyer
Literally food for my roots
My scalp drinks it up — my hair comes out softer, smoother and way more manageable. Less shedding, more shine, and it smells lovely. It actually absorbs in instead of just sitting on top.
- +Roots feel fuller & stronger
- +Lightweight, never greasy
- +A little goes a long way
- –Takes consistency — not overnight
Greta All hair types
Verified buyer
Silkier and healthier
I already had decent hair, but this makes it noticeably silkier, healthier and fuller at the roots. Obsessed.
Mai T.
Verified buyer
Gave my hair life again
I'd damaged my hair for years and finally chopped it off — but the damage was still there until this. I roll, add a little serum and rub it in. Not greasy at all, and the damaged lengths look like they're being repaired. It's made me feel good about my hair again.
Renee P.
Verified buyer
Thicker every year — even in menopause
I'm 53 and in menopause, and my hair only keeps getting thicker. I roll and massage the serum in nightly. Give it time — you'll see baby hairs as the first signal, then they fill right in.
Donna R., 53 Menopause
Verified buyer
Something finally worked
After my last baby at 39, the pregnancy hair wore off and mine got thinner and thinner. This is under 4 months — and I don't even remember to use it daily! Overall thicker, with baby hairs growing in. And it's NOT oily — I apply at night and my hair's fine by morning.
Steph K., 39 Postpartum
Verified buyer
My volume is back
I've always had a thin spot at my left hairline, and a rough patch made me lose a lot more. I started rubbing it into that spot, and a few months later there was a notable difference and tons of baby hair. Now I do my whole scalp — my volume is back up to the nape of my neck.
Priya N.
Verified buyer
Little hairs everywhere — it's working
On my third bottle now. Way less shedding after the first, and now loads of little new hairs standing up all over. Annoying to style, but it means it's working.
Carmen L. 3 bottles
Verified buyer
It actually works!!!
First review I've ever written because THIS WORKS. These are 2.5 months apart. I lost so much hair postpartum and was distraught — a colleague told me it worked miracles for her. Not even halfway through my second bottle and I'm amazed.
Jess M. Postpartum
Verified buyer
Shedding way less
My thinning started with a thyroid medication and my brush was full of hair. After 5 months of near-daily use I'm shedding dramatically less and my scalp looks healthier. Photo is before & after 4 months.
Anne D. Fine hair
Verified buyer
So much regrowth in 3 months
April to July, same straightened hair for continuity. I had tons of hormonal hair loss after coming off birth control — even a bald spot at the back. You can see from my color just how much regrowth I've had in 3 months. If you're on the fence, just do it!
Kayla R. Curly
Verified buyer
Hair growing in my bald spot at 71
Illness, medication and bleaching left me with a bald crown and very thin hair at 71. I'd tried serums and vitamins with zero success. After 2 months on this I saw hair filling the bald spot — now I have fuller, longer hair. I'd give it 10 stars.
Margaret S., 71
The smart growth choice
DearRoot vs. the alternatives
DearRoot
Hair Transplant
Drugstore Serums
How it works
Targets follicles at the root
Surgical relocation
Coats hair & scalp surface
Time to results
Visible in 30 days
6–12 months recovery
4–6 months (if any)
Formula feel
Lightweight, fast-absorbing
Surgical incisions & scarring
Greasy, oily, or sticky
Time & effort
3 minutes a day, no rinse
Appointments + downtime
Daily, lifelong use
Long-term focus
Builds follicle health
Moves hair, doesn't grow it
Temporary masking
Cost over time
Risk-free & affordable
$10,000 – $20,000+
Ongoing monthly spend
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Your Fuller-Hair
Journey with DearRoot™
DearRoot™ works with the natural hair-growth cycle rather than promising an overnight fix. Here is how women commonly notice progress when the system becomes part of their routine.
Start My Journey →120-day money-back guarantee
Weeks 1–4: Less shedding
- Fewer loose strands appear in the shower, brush, and on the pillow.
- The scalp feels calmer and roots feel better supported.
Month 2: New baby hairs
- Fine new hairs begin appearing along the part, temples, or fragile edges.
- Roots gain lift and the hair starts to feel fuller when styled.
Month 3+: Visible density
- New hairs mature and help narrow the appearance of a widening part.
- Lengths feel stronger while the hairline and crown look progressively denser.
Start My Journey →
120-day money-back guarantee
120
DAYGUARANTEE
Risk-free
Love your roots again, or your money back
Give DearRoot a full 120 days — enough time to work with multiple stages of the hair-growth cycle. If you do not see meaningful progress in shedding, new growth, or density, contact us for a refund.
Try DearRoot risk-free →
FAQ
Women’s hair-growth questions, answered
Results come in three phases. Within 2–4 weeks you'll notice less shedding as the channels stabilize the hair bulb. Between 3–6 months, dormant follicles enter the growth phase for visible density. Hair is slow-growing tissue — any product promising overnight results is ignoring physiology.
No. The stamp creates a clean vertical entry and exit at just 0.5mm. Older rollers can cause track-mark tearing; our micro-channels trigger a healing response (increased blood flow) that typically fades within 2 hours.
Yes. Every needle head is surgical-grade stainless steel. At 0.5mm the needles don't enter the bloodstream. Soak the head in 70% isopropyl alcohol for 5–10 minutes before and after each session.
0.5mm is the "goldilocks" depth — 0.25mm is too shallow to reach the follicle bulb, while 1.5mm is intended for clinical scarring and causes unnecessary bleeding. 0.5mm is the maximum depth for safe, painless home use that still triggers the dormant-growth response.
DearRoot strengthens the root environment rather than masking symptoms. Hair always needs ongoing nutrients, so we recommend a once-weekly maintenance phase after month six to keep follicles in their growth stage.
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