Rootly — Rolling-Tip Scalp Applicator Comb
You squeeze the dropper and watch most of it run down the hair length before it ever reaches skin. Six teeth part the hair and roll the liquid straight onto your scalp, so tonight's dose ends up where you've been paying for it to go.
The six teeth are spaced to open a parting rather than glide over the top, and you work section by section the way you would with any comb.
On dense or coily hair you take smaller sections — the rolling tips still reach skin, it just takes a few more passes.
You fill the clear body from the top with your own dropper or straight from the bottle.
The liquid sits inside where you can see the level, and it only releases when the silicone tips press against your scalp.
Your order is dispatched within 24–48 hours and typically arrives within 5–9 business days.
You'll get a tracking link the moment it ships, so you can follow it door to door.
Ordering from outside the US?
Allow 7–10 business days.
Every order is covered by our 60-day scalp-delivery promise, starting the day your order arrives.
Many issues are solved without sending anything back — damaged, wrong, or ill-fitting items are typically replaced free.
No extra taxes or shipping charges.
What you see is what you pay.
Half your bottle is going into hair you just washed
You tilt your head at the mirror, hold a parting open with one hand and squeeze the dropper with the other.
Most of it never touches skin.
It catches on the hair at the opening of the part and runs down the length, and by the time you rub it in with your fingertips you are massaging your own hair, not your scalp.
So you are paying for a bottle that lands mostly on strands.
Then it's greasy by morning, so you wash it out, so you're back to shampooing more often than you want to.
And underneath all of it sits the thing you don't say out loud: after months of doing this every single night, you genuinely don't know whether any of it is reaching your head.
Six teeth open the part, the tips roll it onto skin
Fill the clear body from the top with your own dropper or straight from the bottle — you can see the level, so you know exactly how much you've loaded.
Then you run it along a parting.
The six teeth push the hair apart ahead of the tips instead of dragging over the top of it.
The silicone rolling tips only release liquid when they press against your scalp, so the dose starts underneath the hair rather than on it.
You feel it land.
That's the part people mention first — the cool spot on the skin instead of a wet patch in the hair.
The clear body means you're never guessing how much has gone in or how much is left for the rest of your head.
Dry hair by morning, and no second-guessing
Four minutes, crown to nape, and you're done — no cotton pad, no mirror gymnastics, no wiping serum off your forehead.
Your hair is dry to the touch when you go to bed, so you're not washing it out the next morning just to look presentable.
Which means you can stretch your washes back out again instead of shampooing away the treatment you just applied.
And the part that actually matters: you stop lying there running the routine back in your head.
You felt where it went.
You saw how much went in.
That quiet doubt about whether you're wasting your time is simply gone.
Our key statistics
Based on a survey of 500+ verified customers.
How it works
Three steps, four minutes, the same order every night.
Open the cap and load the clear body with your own serum, oil or minoxidil — dropper or straight from the bottle. You can see the level through the barrel.
Lay the teeth flat against your head and draw a parting. The teeth open the hair, the silicone tips meet skin and release as you go.
Work crown, part, hairline, then nape. Rinse the tips under the tap when you're finished and stand it upright to dry.
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Questions, answered
will the teeth actually part it, or will this just sit on top?
— The six teeth are spaced to open a parting and hold it open while the tips run along the skin underneath, which is the difference between this and a flat applicator head.
On dense, coily or very long hair you take smaller sections than someone with fine hair would, so it takes a few more passes to cover your whole head — the liquid still reaches your scalp, it just takes six or seven minutes instead of four.
do I have to squeeze it in myself?
— You fill the clear body from the top, either with the dropper that came with your serum or straight from the bottle.
It holds the liquid inside where you can see the level, and it only releases when the silicone tips press down against your scalp.
There is no pumping or squeezing while you're applying.
The dropper puts liquid at the opening of your parting and gravity takes it down the hair from there.
This puts the liquid underneath the hair, against skin, because the teeth open the parting before the tips arrive.
It's a simple mechanical difference and it's the entire reason the tool exists.
Rinse the tips under warm running water when you're finished and stand it upright to drain.
Oils and thicker serums leave more residue than water-based treatments, so if you use oil, run the rinse every night rather than weekly.
The body is moulded ABS with silicone tips, so warm water and a drop of shampoo is all it needs.
Your order is dispatched within 24–48 hours and typically arrives within 5–9 business days.
You'll get a tracking link the moment it ships, so you can follow it door to door.
Ordering from outside the US?
Allow 7–10 business days.
Your order is dispatched within 24–48 hours and typically arrives within 5–9 business days.
You'll get a tracking link the moment it ships, so you can follow it door to door.
Ordering from outside the US?
Allow 7–10 business days.
60-day scalp-delivery promise
"Use Rootly for your nightly routine for 60 days. If the liquid still runs down your hair instead of landing on your scalp, send it back and you pay nothing."
Use Rootly every night for 60 days, the way you already do your routine.
Claim your 49% off
The dose you already pay for, on the skin it was meant for.