The brand
Every other brand sells the formula. We sell the road in.
Most of what you put on your face never gets in. The industry answered that by reformulating. We went after the road instead, and built both halves of it in South Korea.
re:tones, written retones without the colon · derma cosmetics · made in Korea
You did not do it wrong
You finished the bottle. Your face looked the same. So you decided the problem was you.
It was not. The outer layer held, the way it holds everything. Most of that bottle dried on the surface and ended up on your pillow.
The industry answered that with new formulas. Smaller molecules, new carriers, better textures. All of it real work, aimed at a barrier that does not negotiate.
The formula was never the weak link. The road in was.
So we stopped asking what to put on skin. We asked how anything gets through it at all.

Two halves, or it does not work
Almost every brand ships one half. Device companies sell a pen and leave you to pick a serum. Skincare companies sell a serum and hope you own a pen. Nobody owns the place where the two meet.
re:tones makes both. The Tap Pen releases its paired ampoule at the moment the tip meets skin, at a setting you choose. The ampoules are formulated for that moment rather than for a jar on a shelf.
The formula and the road arrive together. That is the whole company.
We did not just make the serum. We made the road.
What each part does
The device opens the channel. The cartridge is the only part that touches skin. The ampoule is released at the same moment.
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01
The device
Opens the channel at a depth you set
0.5-1.5mm
Depth range on the collar. Continuous, no clicks.
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02
The cartridge
The only part that touches skin
8µm
Tip diameter, PRO-5D Nano. Sterile, single use.
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03
The ampoule
Released as the tip meets skin
50mL
Crimp-sealed medical glass. Sealed until you open it.
The device is bought once. Cartridges are consumable and used once each. The ampoule is the payload. Any of the three ampoules pairs with the device, and the three cartridges fit it the same way.
Why the vial looks like that
People think the sealed glass vial is a styling choice. It is a consequence.
You are applying this to a barrier you opened on purpose. What you apply has to be sterile at that moment. Not sterile when it left the factory. Sterile now.
A pump fails that test. It meets air and fingers every single day. So the format is one crimp-sealed medical glass vial: aluminum crimp, rubber septum, flip-off cap. Sealed until you open it, finished once you do.
It costs more to fill, it ships heavier, and it cannot be resealed. That is the trade.
Form follows the claim, not the shelf.
Numbers you can check
Most labels carry an active at a level too low to matter. The name on the carton is what sells, and nobody has lied.
We print the formulation figure instead. Niacinamide 210,000 ppm (21%). Tranexamic acid 50,000 ppm. Acetyl hexapeptide-8 at 500 ppm. Each figure sits on the product page in the same type as the product name. Each one comes off the ingredient statement.
A number you can check against your shelf beats an adjective nobody can test.
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8µm
Tip diameter on the PRO-5D Nano cartridge. The PRO-R Nano in the same box is 15 µm.
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0.5-1.5mm
Depth range on the device collar. You set it, and the collar has no clicks.
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50mL
One crimp-sealed medical glass vial per ampoule.
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210,000ppm
Niacinamide in the Pore Tightening ampoule. That is 21 percent.
What we do not claim
Things it would be easy to say. We are not saying them.
- That we know how it feels to youSensation is not something we claim in either direction. The tip is 8 micron. Depth starts at 0.5 mm, the collar has no clicks, and you set it yourself. Start low.
- That a trial backs thisre:tones has not run one. If one is run, it goes up with the institution, the method and the sample size.
- That 205 reviews prove your resultThe device holds 4.9 from 205 customer reviews. A score is other people's skin, not a promise about yours.
- That the videos are testimonialsThe films on this site are made by re:tones to show how the device is used. They are labeled that way on every page they appear.
- That we can tell you how much more gets inWe hold an internal figure for that. It is not substantiated, so it is not on this site and not in our advertising.
- That it treats any conditionThe Tap Pen is a cosmetic device, not a medical one, and nothing here is a medical claim.
The line
One device, three ampoules, three cartridges. The device is not optional and the ampoules are not accessories.
The device
The ampoules
There is no fourth ampoule and no travel size. We will not add a product that does not earn its place between the device and the skin.
Made in Korea, as one system
Korea is one of the few places where both halves of this product live in the same supply chain. Home microneedling devices and clinical ampoules grew up there side by side, in the same cities, serving the same clinics. That is not national flavor on a carton. It is the practical reason re:tones could be developed as one system instead of a pen sourced from one country and a serum sourced from another.
The device and the three ampoules were researched and built together, in South Korea, to work as a pair. The cartridge geometry, the depth the tip travels, and the thickness of the liquid going through it were settled against each other rather than separately. That is why the ampoule is released as the tip lands, not patted on afterwards, and it is the part a company assembling two suppliers' parts cannot copy.
The ampoules are filled and crimp-sealed into medical glass in Korea. Nothing is decanted along the way, and the vial is not opened again until you open it. Cartridges arrive sterile and are used once, then thrown away. The formulation figures on this site are taken from the manufacturer's own ingredient statement and printed as written, including the ones that are unremarkable.
The company that sells it to you is Idenbrick LLC, in the United States. That is who takes the order, who ships it, and who you take it up with if something is wrong. Made in Korea, answerable here. We would rather you knew which was which than find out later.
The record
- Origin
- Developed and made in South Korea
- Sold by
- Idenbrick LLC
- Fulfillment
- Ships from the United States
- The line
- One device, three 50 mL ampoules
- Device class
- Cosmetic device
Who this is not for
A brand for everyone is a brand for nobody. This is a device you use once a week, on purpose, having read how.
It is not for a ten step routine. It replaces the part of the routine where you hope something is absorbing. It is not for active acne, broken skin, or a barrier already in trouble. The science page lists every condition where you should not use it at all.
It is not a substitute for a clinical procedure. The Tap Pen is a cosmetic device working at cosmetic depths. If you want a clinical outcome, see a clinician.
Once a week, on purpose, having read how.
What used to require an appointment
Almost everything that works in skincare started in a clinic. Microneedling was something you booked. You sat through it, and you paid a professional to do it, because the equipment was professional equipment and the judgement was professional judgement.
Home versions usually fail the same way. They keep the shape of the procedure and quietly remove the part that made it work. A roller with no depth setting. A pen with one fixed preset. A serum patted on afterwards, onto skin that has already closed. What arrives at your door looks like the professional version and does almost none of the same work.
We build in the opposite direction. What makes a professional result is almost always delivery, not the formula. So we start there, then ask what survives the move into someone's bathroom. The depth has to stay yours, because thin skin and resilient skin are not the same setting. The formula has to arrive at the moment the channel opens, not after. The tip has to be sterile and used once. Give up any of those three and you are left holding the shape of a procedure rather than the thing itself.
What we give up instead is the setting. No appointment, no practitioner, no room with a paper-covered bed. Five minutes at your own table, once a week, with the parts that matter still intact.
Home devices usually keep the shape of the procedure and remove the part that worked.
How we source and develop
Most brands sell a story about a rare botanical picked on a remote mountain. We do the opposite. Every formula, every concentration, every lab parameter on this site comes from the cosmetics manufacturing and research facility in South Korea that makes our ampoules.
Your skin barrier does not read marketing. It responds to molecular weight, purity, pH and dose. So that is what we publish, and that is what we develop against.
We start every formula at the barrier itself. Most skincare sits on top of your face because the stratum corneum is built to keep things out. These ampoules are designed backwards from that problem, to work with the temporary channels the device opens rather than against a wall.
We develop backwards from the barrier, not forwards from an ingredient list.
Three rules we hold our manufacturer to
- Dose at the scale the ingredient works atNiacinamide and tranexamic acid act in percent, so they are dosed in percent. Signal peptides act at the cellular level, so they are dosed in parts per million. Nothing is inflated to look impressive on a label, and nothing is quoted at the weight of the solution it arrived in.
- Actives high, fillers out of the wayBy law an ingredient list runs in order of weight. It is the one part of a label nobody can dress up. We use that: the actives go where the weight actually is, rather than sitting under oils and fragrance.
- Every batch at pH 6.0High-dose actives sting when the pH drifts. Calibrating each batch to 6.0 keeps sensitive actives stable without stressing skin you have just worked on.
How we decide things
- Road before formulaIf a change does not improve what reaches the skin, it is decoration.
- Publish the figureEvery active is listed at its real formulation percentage, not as a name on a carton.
- One system, not a rangeWe will not launch a product that does not earn its place between the device and the skin.
- Sterile because it has to beThe format follows the claim. We do not choose packaging for the shelf.
- Say the limit out loudWhere a number is not substantiated, the site says so instead of rounding it up.
- No borrowed credibilityNo press logos we did not earn, no reviews we did not receive, no panels we did not run.
One device, three ampoules, three cartridges. One system.
See the line