Caffeine & Rosemary Scalp Serum 20ml — Rollerball for Fine, Flat Hair
Caffeine & Rosemary Scalp Serum 20ml — Rollerball for Fine, Flat Hair
A lightweight, fast-absorbing scalp serum built around three actives — rosemary, PDRN, and caffeine. It rolls straight onto the scalp, sinks in without residue, and leaves a cool, refreshed feel. Made for fine, soft hair that falls flat after washing.
The triple-action formula
- Rosemary — a long-standing scalp botanical that gives the serum its invigorating character and supports the look of fuller, denser hair.
- PDRN (salmon-derived polynucleotides) — an ingredient popularised in Korean skincare, used here to help soothe the scalp and support a comfortable, balanced scalp environment.
- Caffeine — helps hair feel stronger at the root and supports volume in limp, flat hair.
Why you'll love it
- Instantly cooling on application — welcome after a workout, in hot weather, or after heat styling
- Weightless and non-greasy, so it works as a daily leave-in, even before styling
- Rollerball applicator puts the serum on the scalp rather than through the lengths
- Helps reduce breakage and the appearance of split ends with consistent use
- Supports the look of thicker, fuller hair at the root and less post-wash flatness
- Helps keep excess oil in check without leaving the scalp stripped
Product details
- Volume: 20ml, with rollerball applicator
- Key actives: rosemary, PDRN, caffeine
- Lightweight and fast-absorbing — no rinsing, no residue
- Light, fresh scent
For a deeper weekly treatment alongside this daily rollerball, try our Rosemary Scalp Oil.
How to use: Cleanse and dry your scalp. Open the cap and gently roll the serum along the scalp, working section by section. Massage in with your fingertips and let it absorb — no rinsing needed. Use daily, and give it at least three months before judging results; hair grows roughly a centimetre a month. For external use only. Patch test before first use if you have a sensitive scalp.
Contains fish. The PDRN in this formula is derived from salmon. Do not use if you have a fish allergy.
Sold under the Hair Root brand; the physical bottle may display the manufacturer's original labeling.
These statements have not been evaluated by the FDA. This product is cosmetic and is not intended to diagnose, treat, cure, or prevent any disease or condition, including hair loss. Individual results vary.
✓ 30-Day Money-Back Guarantee. Try it for a full month. If it's not for you, we refund you in full — and you don't need to send the bottle back.
Made to earn a place in your routine
- Lightweight
- Nourishes
- Strengthens
How to use it
Three easy steps for healthy-looking hair.
Apply
Work into the scalp or through damp hair as directed on the product.
Absorb
Lightweight botanical formula absorbs without greasy residue.
Repeat
Use consistently as part of your routine for the best results.
Why choose Hair Root
Frequently asked questions
Hair care works gradually. Most people use a product consistently for several weeks before judging results. Individual results vary.
You have 30 days from delivery. Contact us with your order number and we'll refund you in full — you don't need to return an opened bottle. Refunds reach your original payment method within 5–10 business days of approval.
Yes, we recommend testing on a small area of skin before first use, especially if you have sensitive skin.
Our formulas are designed for most hair types. Check the product description for ingredients and any specific guidance.
These statements have not been evaluated by the FDA. This product is cosmetic and is not intended to diagnose, treat, cure, or prevent any disease.
Ready to try it?
Botanical hair care, made simple. Try it for 30 days — full refund if it's not for you.