Rosemary Leaf Water
Supports scalp circulation and follicle vitality
Hair Boost Serum
£44.90
-20%
£35.90
-20%
Hair Boost Serum
Wake up your scalp, extend the growth phase, and keep more hair where it belongs.
4.9 / 5.0
✓
2723 verified reviews
-
✓
Daily scalp serum that supports new hair growth and reduces shedding
-
✓
Combines rosemary leaf water, niacinamide, and caffeine in one lightweight formula
-
✓
Acetyl Tetrapeptide-3 helps stimulate follicle activity and extend the active growth phase
-
✓
Apply to wet or dry scalp, massage in, no rinse required
-
✓
Made in Slovenia, GMP and EU-certified manufacturing facilities
Packaging:
50 ml
Free Shipping on purchases over £100.00
60-Day Peace Of Mind Promise
Estimated delivery time: 3 to 5 business days
Hurry! Only 10 items left in stock
Tetrapeptide Complex
Helps extend the active hair growth phase
Made in the EU
Produced to strict European quality standards.
Money-back warranty
Covered by our satisfaction guarantee.
Why it helps
What changes when your scalp gets the right daily signal
The Hair Boost Serum targets the root cause of thinning: a scalp environment that no longer sends strong enough growth signals to follicles. Five active compounds work together to improve circulation, hydrate the scalp, and help follicles stay in the active growth phase longer.
Shown to reduce hair shedding by up to
0%Shown to increase hair density by up to
0%Shown to extend the active hair growth phase by up to
0%Shown to improve scalp circulation by up to
0%One daily scalp ritual
Stronger signals. Less shedding. A scalp environment built for growth, not retreat.
The Hair Boost Serum works by combining scalp-circulation support, follicle-stimulating peptides, and lasting hydration into a single lightweight application. Use it nightly before sleep and let the actives reach the follicle level while your body is already in repair mode.
✓
Helps reduce hair shedding and daily hair loss
✓
Supports new growth and visibly improved density
✓
Saccharide Isomerate locks in scalp hydration for lasting comfort
✓
Lightweight formula, no rinse, fits any hair routine
✓
Guaranteed to work, or it's yours FREE.
A day in the life
How one nightly habit changes what you see in the mirror
The Hair Boost Serum is designed around the body's natural overnight repair window. Apply it before bed and the actives work alongside your body's own renewal cycle, from circulation boost at application to follicle signalling through the night.
Standard routine
Golden Tree Hair Boost Serum
20:00
🚿
Serum applied
Dispense onto scalp, wet or dry, before bed.
21:00
💆
Massage in
One to three minutes activates circulation at the scalp.
22:00
⚡
Caffeine kicks in
Caffeine and rosemary support increased scalp blood flow.
00:00
🔬
Peptides signal
Acetyl Tetrapeptide-3 supports follicle activity through the night.
07:00
✨
Morning scalp
Hydrated, less irritated, ready for another consistent day.
Real customer journeys
Before and after adding this serum
Marina
(38)Liverpool
Verified customer
I finally feel like my hair is growing back instead of disappearing.
David
(44)Leeds
Verified customer
The irritation settled down quickly and my hair seems fuller already.
Sophie
(31)Leeds
Verified customer
This is the first serum that actually made a visible difference for me.
Hero ingredient
Acetyl Tetrapeptide-3
A targeted peptide signal for the hair follicle, Acetyl Tetrapeptide-3 is formulated to help extend the active growth phase and reduce premature shedding.
Peptides communicate with the scalp at a cellular level. Acetyl Tetrapeptide-3 is a four-amino-acid chain designed to reinforce the signals that keep follicles in their active growth cycle, working to delay the shift toward the resting and shedding phases that drive visible thinning.
Growth Phase Support
Helps extend the anagen phase so each follicle stays active longer.
Follicle Signalling
A four-amino-acid chain that communicates directly at the follicle level.
Reduced Premature Shedding
Targets the early shift into the resting phase that leads to hair loss.
Works While You Sleep
Most effective alongside the body's natural overnight repair and renewal cycle.
The Mechanism
The Follicle Reset Cycle: four steps, one nightly ritual
1
Apply
Dispense the serum directly onto the scalp, wet or dry, before sleep. No rinsing needed.
2
Circulate
Rosemary and caffeine support scalp microcirculation, bringing nutrients closer to the follicle root.
3
Signal
Acetyl Tetrapeptide-3 sends growth-phase signals to follicles, helping delay premature shedding.
4
Hydrate
Saccharide Isomerate and niacinamide maintain a balanced scalp environment through the night.
The result: a calmer scalp, reduced daily shedding, and a growing environment that supports each follicle staying active longer, without changing your existing hair routine.
The Science
The Disrupted Follicle Cycle: four reasons hair thins
Hair thinning rarely has one cause. The Hair Boost Serum is formulated to address four distinct breakdown points in the scalp environment that push follicles out of the active growth phase early.
01
Poor Scalp Circulation
Reduced blood flow to the follicle zone limits the delivery of nutrients and oxygen that follicles need to sustain active hair production.
02
Shortened Growth Phase
When follicles shift too quickly from active anagen to resting telogen, hairs shed before reaching full length or density, and regrowth slows progressively.
03
Scalp Dehydration
A dry, compromised scalp barrier creates inflammation and irritation that disrupts the follicle environment and weakens the anchor of existing hairs.
04
Weak Follicle Signalling
Without the right peptide and botanical signals, follicles lose the biological cues needed to restart and sustain the growth cycle effectively.
Key ingredients
Key ingredients
The Hair Boost Serum brings together rosemary leaf water, niacinamide, caffeine, a tetrapeptide complex, and a saccharide-based hydration agent. Each active is selected for a specific role in scalp health and follicle vitality, not just surface conditioning.
Acetyl Tetrapeptide-3
Follicle signalling
A synthetic peptide sequence designed to support follicle longevity. Its role is to help keep hair follicles in their active anagen growth phase for longer, reducing the premature transition to resting and shedding phases that drives visible thinning.
Rosmarinus Officinalis (Rosemary) Leaf Water
Scalp circulation
A plant-derived active long associated with scalp circulation support. Rosemary leaf water helps create a healthier scalp environment by promoting blood flow to the follicle zone.
Niacinamide
Scalp barrier support
A form of Vitamin B3 that supports scalp barrier function and helps reduce inflammation, creating a more stable environment for sustained hair growth.
Caffeine
Follicle stimulation
Applied topically, caffeine is associated with stimulating hair follicles and supporting scalp microcirculation, helping actives reach the follicle more effectively.
Saccharide Isomerate
Long-lasting hydration
A saccharide-based hydration agent that binds moisture directly to the scalp for sustained comfort, reducing dryness and irritation that can compromise follicle health.
Trifolium Pratense (Clover) Flower Extract
Scalp soothing
A plant extract included to support scalp soothing and complement the formula's overall approach to a healthier follicle environment.
Verified reviews
What customers say
Laura M. (42)
Edinburgh
Verified customer
Less hair in the shower drain within a few weeks. Really impressed.
James T. (37)
Manchester
Verified customer
My scalp feels less dry and irritated. Hair looks thicker at the roots.
Anita K. (50)
Coventry
Verified customer
Took about three weeks to notice a difference, but the shedding reduced. Worth it.
Marco R. (33)
Leeds
Verified customer
Easy to use, no greasy residue, and my hair actually feels stronger now.
Why Hair Boost Serum
What changes when your scalp gets the right daily signal
Standard hair serum
Hair Boost Serum
Hero ingredient
Often relies on a single botanical with limited scalp penetration
Rosemary leaf water paired with Acetyl Tetrapeptide-3 for multi-level scalp support
Active stack
Typically one or two actives, formula often undisclosed
Five actives: rosemary, niacinamide, caffeine, peptide complex, and saccharide hydration agent
Follicle mechanism
Surface-level conditioning, does not target growth phase length
Acetyl Tetrapeptide-3 designed to help extend the active hair growth phase
Scalp hydration
Basic humectants with short-lasting moisture retention
Saccharide Isomerate binds moisture to the scalp for sustained hydration
Application
Requires rinse-out or complex multi-step routine
Apply to wet or dry scalp, massage in, leave on, no rinse required
Manufacturing
Manufacturing standards and origin often unspecified
Made in Slovenia, EU-certified facilities, GMP, GSP, GLP, and HACCP certified
The bottom line
Five reasons your scalp deserves a better nightly signal
Hair thinning is a process, not a single event. The Hair Boost Serum addresses each layer of that process, from circulation to hydration to follicle signalling, so your scalp has the conditions it needs to support growth consistently.
01
Supports reduced daily hair loss
A calmer scalp environment with improved follicle signalling means fewer hairs leaving prematurely.
6
actives
02
Helps extend the active growth phase
Acetyl Tetrapeptide-3 is formulated to delay follicle transition out of the anagen phase.
Peptide
03
Improves scalp hydration and comfort
Saccharide Isomerate binds moisture to the scalp for sustained relief from dryness and irritation.
50
ml
04
Stimulates scalp microcirculation
Rosemary and caffeine work together to support blood flow to the follicle zone daily.
2
botanicals
05
Made to EU and GMP standards
Formulated and produced in Slovenia to GMP, GSP, GLP, and HACCP certified standards.
SI
certified
Best value choice
Choose the package that gives your routine enough time to work
Hair density and scalp health respond to consistent daily use, so the right package gives you the runway to feel the full difference.
-20%
Hair Boost Serum
Wake up your scalp, extend the growth phase, and keep more hair where it belongs.
4.9 / 5.0
✓
2723 verified reviews
-
✓
Daily scalp serum that supports new hair growth and reduces shedding
-
✓
Combines rosemary leaf water, niacinamide, and caffeine in one lightweight formula
-
✓
Acetyl Tetrapeptide-3 helps stimulate follicle activity and extend the active growth phase
-
✓
Apply to wet or dry scalp, massage in, no rinse required
-
✓
Made in Slovenia, GMP and EU-certified manufacturing facilities
Packaging:
50 ml
Free Shipping on purchases over £100.00
60-Day Peace Of Mind Promise
Estimated delivery time: 3 to 5 business days
Hurry! Only 10 items left in stock
How to use
Apply it right to get the most from every drop
Consistency is what makes a scalp serum work. Apply daily, ideally before sleep, and let the actives do their job while your body is already in overnight repair mode.
-
1
Evening · First step
Part and prep
Part your hair to expose the scalp. The serum can be applied to wet or dry scalp, no preparation step needed.
Wet or dry
No pre-rinse
Part hair first
-
2
Evening · Second step
Apply to scalp
Dispense directly onto the scalp in sections. Focus on areas where thinning or shedding is most noticeable.
Targeted areas
Direct application
Even distribution
-
3
Evening · Third step
Massage in
Use your fingertips to gently massage the serum into the scalp for one to three minutes. This supports absorption and circulation.
1 to 3 minutes
Fingertip massage
Boosts circulation
-
4
Evening · Final step
Leave on overnight
not rinse. Leave the serum on overnight so the actives can work through the body's natural repair window.
No rinse needed
Leave overnight
Daily consistency
Questions
Frequently asked questions
Apply the serum directly to your scalp, on wet or dry hair, ideally before sleep. Massage gently with your fingertips for one to three minutes to support absorption. There is no need to rinse it out. For best results, use it daily and allow at least four to eight weeks for the routine to build up.
The serum is designed for evening use before sleep. Overnight is when the body's natural repair and renewal cycle is most active, which helps the actives, particularly the Acetyl Tetrapeptide-3 peptide complex, work at the follicle level without interference from styling or environmental exposure.
The formula combines rosemary leaf water, caffeine, and niacinamide to support scalp circulation and barrier health, while Acetyl Tetrapeptide-3 targets the follicle growth cycle directly. Together, these actives help create a scalp environment where follicles receive stronger signals to stay in the active growth phase longer and shed less prematurely.
Acetyl Tetrapeptide-3 is a synthetic four-amino-acid peptide designed to support follicle signalling. It is included in the Hair Boost Serum because it helps extend the anagen, or active growth, phase of the hair cycle, working to delay the premature shift into resting and shedding phases that causes visible thinning.
Yes, the Hair Boost Serum is formulated for all genders. It is designed for anyone experiencing hair thinning, increased shedding, or reduced hair density, regardless of hair type. The lightweight, no-rinse formula fits easily into any hair routine.
The Hair Boost Serum is for external use only. Keep it out of reach of children and avoid contact with the eye area. It is not suitable for persons sensitive to any of the listed ingredients. If irritation occurs, discontinue use. Always check the full ingredient list if you have known sensitivities.
Each bottle contains 50 ml of serum. With daily use applying a moderate amount to the scalp, a single bottle is typically designed to support a consistent routine for approximately one month, though this can vary depending on scalp coverage and application amount.
The Hair Boost Serum is formulated and produced in Slovenia. Manufacturing takes place in EU-certified facilities that hold GMP, GSP, GLP, and HACCP certifications, ensuring consistent quality and safety standards throughout production.
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