Dr. Pen A20 Review

The Dr. Pen A20 is the only Dr. Pen model with an FDA clearance, and that clearance is narrower than the marketing around it. The FDA cleared the “Dr. pen Microneedling System”, model A20, in August 2023 as a prescription device for one job: improving the appearance of facial acne scars in adults 22 and older. It did not clear it for home use, hair growth, stretch marks or wrinkles. Dr. Pen’s US store sells it for $599 and asks for a license number at the add-to-cart step. Several resellers sell the same pen as “FDA-approved” and safe for home use, which is outside what the FDA cleared. This review is based on documented evidence: nobody at this site has used the device.

What the FDA clearance covers, and what it doesn’t

The record is K230420, applicant Guangzhou Ekai Electronic Technology Co., Ltd., decision date August 11, 2023, product code QAI. The cleared indication, quoted from the 510(k):

“The Dr.pen Microneedling System is a microneedling device and accessories intended to be used as a treatment to improve the appearance of facial acne scars in adults aged 22 years and older.”

The summary names the model on its device-information page (“Model: A20”) and lists the type of use as “Prescription use”, the same as both devices it was compared against. Four limits follow from that.

It is a prescription clearance. Under FDA labeling rules, a prescription device “is to be sold only to or on the prescription or other order of such practitioner”, meaning a practitioner “licensed by law to use or order the use of such device” (21 CFR 801.109). An A20 sold to a member of the public for use in their own bathroom is outside the terms the FDA cleared it under. The clearance doesn’t make the pen illegal to own. It means the safety case the FDA accepted assumed professional use.

It covers one indication. Facial acne scars, adults 22 and over. Dr. Pen’s product page lists ten benefits, including “Stimulates hair growth”, “Minimizes the look of stretch marks” and “Lightens hyperpigmentation”. None of those is in the cleared indication.

It covers one configuration. The 510(k) describes a single cartridge: 14 needles, 34 gauge, sterile, single use. Dr. Pen’s US store also sells 12-, 18-, 24-, 36- and 42-pin cartridges for the A20. The summary doesn’t mention any of them.

It rests on bench testing, not a clinical trial. The summary lists bench tests (depth accuracy, puncture rate, needle bonding strength, use life, anti-suction, microbial ingress), cleaning validation, sterilization, biocompatibility and electrical safety. It reports no clinical study of the A20. The FDA’s finding is that the pen is substantially equivalent to the SkinPen Precision, which already held a clearance, rather than proof that the A20 itself improves scars.

A clearance is also not an approval. Resellers call the A20 “FDA-approved” (dr-pen.co.uk: “Dr Pen A20 – FDA-Approved Precision for Professional Results”; drpen.io: “an FDA-approved, medical microneedling pen”). Dr. Pen’s own US page uses the correct word, “FDA-cleared”. The difference is explained on our FDA clearance page.

The depth: 2.0 mm cleared, 2.5 mm advertised

The 510(k) comparison table has three columns: the predicate (SkinPen Precision, DEN160029), a reference device (MicroPen EVO, K203144) and the subject device (the Dr. pen). The 2.5 mm figure in that table belongs to the SkinPen. The A20’s row reads “9 depth settings; 0 mm to 2.0 mm in 0.25 mm increments”, and the summary spells the difference out:

“the Dr.pen is 0.5 mm shorter (2.0 mm) than the predicate (2.5 mm)”

Dr. Pen’s A20 product page agrees: “a range from 0 to 2.0mm in precise 0.25mm increments”. Its own cartridge pages don’t. The 14-pin and 42-pin A20 cartridge listings on us.drpen.co both say “Maximum depth of 2.5mm”, and resellers repeat it: dr-pen.co.uk advertises “an adjustable depth range from 0.20 mm to 2.5 mm” with “nine separate depth settings”, and drpen.io says “adjustable needle depth from 0 to 2.5 mm”. Nine settings in 0.25 mm steps starting at zero end at 2.0 mm, so the 2.5 mm claim can’t describe the cleared pen. Whether some retail units are built to reach 2.5 mm is unverified.

The summary also says both the A20 and the SkinPen recommend the same treatment depth, 1.5 mm.

Who it’s for, and who it isn’t

For: licensed practitioners treating facial acne scars who want a lower-cost pen with a 510(k) behind it.

Not for: anyone planning to microneedle at home. If that’s you, the A20’s clearance doesn’t extend to your use. Dr. Pen’s own listing heads its instructions “Microneedling Treatment Protocol – For professional use only”.

Who can actually buy one

Dr. Pen US titles the listing “Dr. Pen A20 Advanced Microneedling Pen for Professionals”. On October 6, 2026, the product page required a Business Name, a License Number and a “Full Name on License” before the add-to-cart button would work, with optional menus for area of practice and license type. The license-type options were MD, DO, RN, NP, PA, L.Ac and “Licensed Aesthetician”. The cartridge pages ask for the same fields.

What happens after that is unverified. The page doesn’t say whether the number is checked against a state register before the order ships. Whether a licensed aesthetician is a practitioner “licensed by law to use or order the use of” a prescription device depends on state law, and this review hasn’t checked each state.

Other sellers don’t ask. A reseller site, drpen.io, sells the A20 for €417.95 and answers “Is the product safe to use at home” with “Yes, our products are designed for safe home use when used correctly.” DIY buyers notice the clearance and go looking for the pen because of it:

Derminator vs Dr. Pen M8S
byu/no_sir_buddy inDIYmicroneedling

That thread, in r/DIYmicroneedling, is titled “Derminator vs Dr. Pen M8S”, and the snippet shows a reply saying “If you can get your hands on the Dr Pen A20 I would pick this. The A20 has FDA clearance and is medically certified.” That is the gap this review is about: the clearance is a reason people buy the pen for exactly the use it wasn’t cleared for.

An Instagram reel in the same search results says the pen “is FDA cleared in the US meaning it’s been cleared for back flow to be able to be used in clinic”. The clearance covers the whole system for one indication, not backflow specifically.

Specs

From the FDA 510(k) summary unless marked. The comparison-table column used is the subject device (Dr.pen).

	Dr. Pen A20
Needles	14 per cartridge, 34 gauge, stainless steel, “Needles radially arranged”
Depth	9 settings, 0–2.0 mm in 0.25 mm steps
Recommended treatment depth	1.5 mm
Speed	“6300 – 7700” RPM; Dr. Pen says “6 adjustable levels”
Puncture rate	“105 -128 stamps/second”
Power	Rechargeable Li-ion battery, AC charger; Dr. Pen lists 700 mAh, “3-4 hours/per charge”
Cartridge	Sterile, single use, ethylene oxide, 2-year shelf life
Barrier	Disposable protective sleeve (10 in the box, per Dr. Pen)
Weight	94 g (Dr. Pen)
Price	$599 (us.drpen.co, October 6, 2026)
Warranty	1 year or 3 years, depending on which Dr. Pen page you read (see below)

The pen runs on its battery only. The Dermalogica PRO Pen’s 510(k) says so in passing, noting that the PRO Pen can run on mains “as opposed to the predicate device, which can only be operated with a rechargeable battery.” The predicate it names is K230420.

That detail has a second use. Dermalogica’s PRO Pen (K243800, cleared August 25, 2025) used the A20 as its predicate device and describes itself as identical in puncture rate, needle count and gauge, needle geometry and sterilization, with a shallower 1.5 mm maximum and a 3-year cartridge shelf life. The A20’s clearance now serves as the predicate for three other companies’ devices: Campomats’ 1NEED Pro (K243472), Dermalogica’s PRO Pen (K243800) and Woorhi’s CODE-X (K252591).

Canada: the 2021 advisory and the 2026 licence

On December 16, 2021, Health Canada warned against the “Dr. pen Auto Microneedle System. All models, including but not limited to, A1, A6, A7, A6S, E30, M5, M7, M8, N2 and X5, and Ultima versions.” Its stated reason was licensing: “Dr. pen microneedling pens and cartridges are not licensed by Health Canada.”

That has since changed for the A20. Health Canada’s Medical Devices Active Licence Listing shows licence 114618, “MICRONEEDLING SYSTEM”, held by Guangzhou Ekai Electronic Technology Co., Ltd., class II, first issued January 6, 2026, with no end date. Its device identifiers are A20, A9 and DP-MC9 for the handpiece and H14 for the cartridge. An earlier licence, 112281 (“DR.PEN MICRONEEDLING SYSTEM”), covered the A11, A20, A9 and H14 from November 27, 2024 to December 9, 2025.

Because the advisory’s ground was the absence of a Canadian licence, and the A20 now holds one by model number, this review treats the advisory as resolved for the A20. It remains in force for the models it names that are not on that licence. The listing doesn’t say whether the licence covers home use. In 2021 Health Canada said “no microneedling devices have been authorized for at-home use”, and whether that still holds is unverified.

What users report

No public A20 owner reviews could be read in full. The US product page shows a count of 45 reviews, but the rating and text did not load for this check. Reddit’s A20 discussion is thin and mostly about which cartridges fit:

Dr. Pen microneedling quick comparison
byu/DIY-sparkling-mod inDIYmicroneedling

That thread is titled “Dr. Pen microneedling quick comparison”, and the snippet reads “I have the m8s and the a20. They use the same cartridges.” Dr. Pen sells the A20 cartridges as their own line with a “SnapConnect™ three-snap connector”, so whether they are interchangeable with M8S cartridges is unverified.

An openFDA search of the FDA’s MAUDE adverse-event database on October 6, 2026 found two reports naming Guangzhou Ekai as manufacturer. One (July 2021, malfunction) lists models “A8, A6, A6S, A7”. The other (October 2023, injury) is an A6S, and its narrative says the buyer “was expecting to provide proof of license or qualification prior to purchasing, but was not asked.” Neither names the A20, and MAUDE reports are unverified submissions that don’t establish that a device caused an event.

Warranty, returns and privacy

Dr. Pen contradicts itself on the warranty. The A20 product description promises a “3-year extended quality warranty provided”. The banner on the same page says “1-year warranty, lifetime support”, and the refund policy says products are covered “for a period of 12 months from the original invoice date”. The written policy is the one most likely to be applied, so plan on 12 months.

Returns: a 14-day “Change of Mind” return, unopened with the plastic wrap sealed, “subject to a 20% restocking fee”, with return shipping at your cost. Faulty products are replaced, exchanged or credited after assessment, and “No refunds will be issued for faulty products prior to their return and assessment”. The policy also says the warranty doesn’t cover problems caused by “use of cartridges not received or purchased directly from us”. Dr. Pen’s Trustpilot pages refused an automated request (HTTP 403), so the company’s complaint record is unverified here.

The US store is run from Australia: the footer and privacy policy name eShopping Group Pty Ltd in Welshpool, Western Australia, with a US shipping address in Allentown, Pennsylvania. The privacy policy (last updated 21 Nov 2025) says browsing data is “shared with our processor Shopify, Google Analytics, Facebook, Instagram and Pinterest” and used for targeted advertising. It is a lightly edited template: one line still reads “[INSERT OTHER COOKIES OR TRACKING TECHNOLOGIES THAT YOU USE]”. It doesn’t mention the license number and name-on-license that the A20 page collects.

Cartridges and running cost

Every A20 cartridge on us.drpen.co costs $79.00 for a pack of 10 (14-pin listing checked October 6, 2026), which works out to $7.90 each. On this site’s standard schedule (one full-face session every 4 weeks, one new cartridge per session, 13 cartridges a year):

• year one = $599 pen + 13 × $7.90 = $599 + $102.70 = $701.70
• each later year = 13 × $7.90 = $102.70

Cartridges come only in packs of 10, so 13 sessions means buying two packs ($158) in the first year, with seven left over. At the time of checking, the store also included a free 10-pack of 14-pin cartridges with the pen (“T&Cs apply”), which would cover most of year one. Dr. Pen’s own cartridge page recommends sessions “once every 4-6 weeks”, so a 6-week schedule would use fewer.

Note the label on those cartridge pages: “This product may not have been evaluated by the Food and Drug Administration”. For the 14-pin cartridge that is the cleared one, the sentence undersells it. For the other pin counts, it’s accurate.

How it scored

• Safety (6): No cap applies, because the FDA cleared this exact model and Health Canada’s 2026 licence lists the A20 by number, which resolves the 2021 advisory for it; within that, it has sterile single-use cartridges, a disposable sleeve and anti-suction and ingress testing, but loses points for being sold outside its prescription clearance, cartridge pages that state 2.5 mm against a cleared 2.0 mm, and cartridge configurations the 510(k) never covered.
• Build (7): The 510(k) documents the needle spec, depth-accuracy, needle-bonding and use-life testing and IEC 60601 electrical safety, and MAUDE holds no A20 reports, but unlike the Dermapen 4’s summary it publishes no measured depth tolerance.
• Performance (7): Nine depth settings to 2.0 mm, six speeds and 3–4 hours of battery, but no corded option and a shallower maximum than most cleared pens; the user manual isn’t public, so the instructions could not be assessed.
• Value (5): $701.70 in year one and $102.70 a year after on the standard schedule is published and moderate, though most cleared pens publish no price to compare it against.
• Service (4): A 12-month written warranty that the product page inflates to three years, a 20% restocking fee on change-of-mind returns, and no complaint record that could be read. The store’s refund and warranty terms are shared by every Dr. Pen model it sells, so they score the same on each review.
• Privacy (4): Dr. Pen US (us.drpen.co) uses one Shopify template privacy policy for every model: it shares data with advertising platforms and still contains an unfilled “[INSERT OTHER COOKIES OR TRACKING TECHNOLOGIES THAT YOU USE]” placeholder. No incident was found. The same policy gets the same score on every Dr. Pen review.
• Evidence (5): The specs on the official product page match the 510(k), but there is no clinical study of the A20 in the FDA record or on PubMed, and the brand’s pages claim uncleared benefits and a 2.5 mm depth.

Alternatives

• SkinPen Precision: the A20’s own predicate device, also a prescription pen for acne scars, with 11 settings to 2.5 mm per the A20’s own 510(k) table.
• Dermapen 4: cleared as the “DP4” (K221070), 0.2–3 mm, mains or battery, and sold only to authorised clinics, so there is no consumer-sale problem.
• Dr. Pen M8S: the brand’s consumer pen, with no FDA clearance and covered by Health Canada’s 2021 “all models” advisory.

FAQ

Is the Dr. Pen A20 FDA approved? No. It is FDA-cleared through a 510(k) (K230420), which is a different process from approval. The clearance is for prescription use on facial acne scars in adults 22 and older.

Can I use the Dr. Pen A20 at home? Not within its clearance. The FDA cleared it as a prescription device, and Dr. Pen’s own instructions say “For professional use only”. Some resellers say otherwise.

Does the Dr. Pen A20 go to 2.5 mm? Not in the cleared configuration. The 510(k) and Dr. Pen’s product page both give 0–2.0 mm in 9 settings. The 2.5 mm figure in the 510(k) table is the SkinPen’s, and Dr. Pen’s cartridge pages repeat it.

Is the Dr. Pen A20 legal in Canada? It holds a Health Canada medical device licence (114618, first issued January 6, 2026) that lists the A20 handpiece and H14 cartridge. Whether that licence covers home use is unverified.

How much does the Dr. Pen A20 cost? $599 on Dr. Pen’s US store on October 6, 2026, with cartridges at $79 per 10-pack.

Sources

• FDA 510(k) K230420, “Dr. pen Microneedling System”, decision letter, indications for use and 510(k) summary (checked 2026-10-06): https://www.accessdata.fda.gov/cdrh_docs/pdf23/K230420.pdf
• FDA 510(k) database entry for K230420: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm?ID=K230420
• FDA 510(k) K243800, Dermalogica “PRO Pen Microneedling System (6883)”, 510(k) summary naming K230420 as predicate (checked 2026-10-06): https://www.accessdata.fda.gov/cdrh_docs/pdf24/K243800.pdf
• 21 CFR 801.109, Prescription devices (eCFR, checked 2026-10-06): https://www.ecfr.gov/current/title-21/chapter-I/subchapter-H/part-801/subpart-D/section-801.109
• Dr. Pen US, A20 product page, including the license fields (checked 2026-10-06): https://us.drpen.co/products/new-dr-pen-a20-advanced-miconeedling-pen-for-professionals
• Dr. Pen US, 14-pin A20 cartridges (checked 2026-10-06): https://us.drpen.co/products/14-pin-replacement-cartridges-for-dr-pen-a20-advanced-miconeedling-pen
• Dr. Pen US, 42-pin A20 cartridges (checked 2026-10-06): https://us.drpen.co/products/42-pin-replacement-cartridges-for-dr-pen-a20-advanced-miconeedling-pen
• Dr. Pen US, refund and warranty policy (checked 2026-10-06): https://us.drpen.co/policies/refund-policy
• Dr. Pen US, privacy policy (checked 2026-10-06): https://us.drpen.co/policies/privacy-policy
• Health Canada advisory, “Dr. pen microneedling devices are not authorized for sale and may pose health risks” (December 16, 2021): https://www.newswire.ca/news-releases/advisory-dr-pen-microneedling-devices-are-not-authorized-for-sale-and-may-pose-health-risks-898811970.html
• Health Canada MDALL, licence 114618 (checked 2026-10-06): https://health-products.canada.ca/api/medical-devices/licence/?id=114618&lang=en&type=json
• Health Canada MDALL, device identifiers on licence 114618 (checked 2026-10-06): https://health-products.canada.ca/api/medical-devices/deviceidentifier/?licence_id=114618&lang=en&type=json
• Health Canada MDALL, licence 112281 (checked 2026-10-06): https://health-products.canada.ca/api/medical-devices/licence/?id=112281&lang=en&type=json
• FDA MAUDE via openFDA, manufacturer “ekai” (searched 2026-10-06): https://api.fda.gov/device/event.json?search=device.manufacturer_d_name:ekai
• dr-pen.co.uk, “Buy Dr Pen A20” (checked 2026-10-06): https://www.dr-pen.co.uk/product/dr-pen-a20-fda-approved/
• drpen.io, “Buy Dr. Pen A20” (checked 2026-10-06): https://www.drpen.io/products/dr-pen-a20
• Instagram reel in the “dr pen a20” search results: https://www.instagram.com/reel/DWCqcPfDmuf/
• Trustpilot, Dr. Pen (HTTP 403 on 2026-10-06, unverified): https://www.trustpilot.com/review/drpen.co