Journal / Microneedling

The channel, and what sets its depth.

A tip opens a route that does not otherwise exist, and every question worth asking is about how deep, how wide, and how often. Formats, settings and technique, written for a device used at home rather than a clinic protocol.

The word covers at least three different objects. A roller, a pen, and a plastic cone that never breaks the surface are all sold under it, and only two of them do the thing the name describes. A good part of the confusion in this category is a vocabulary problem rather than a technical one.

The rest is borrowed expectation. Nearly everything written about downtime, frequency and results describes a clinical procedure at depths a consumer device does not reach. Carried across unchanged it produces both errors at once: worry about the parts that are ordinary, and casualness about the parts that are not.

Where there is no honest number, these entries say so instead of supplying one. re:tones has run no clinical study and no consumer panel, so there is no result figure here to quote, and any brand that hands you one for a home device is worth asking who measured it.

Start here

Microneedling Depth: What 0.25 mm to 1.5 mm Actually ReachesA depth chart tells you how far a needle is set to travel, not what it reaches. Here is the difference, and the anatomy behind it.7 min read
  1. RF Microneedling vs Microneedling: Where Heat Changes ThingsRF microneedling adds heat through insulated needles. Deeper, pricier, clinic only. What the FDA warned in 2025, and the pigment risk in...10 min read
  2. Microneedling vs Microcurrent: Two Different JobsMicroneedling is mechanical, microcurrent is electrical. Compare mechanism, target, sensation and cadence, and see why they complement rather than compete.9 min read
  3. Microneedling vs LED Light Therapy: What Each ReachesMicroneedling opens a physical route through the skin barrier. LED delivers light only. What each one reaches, what the evidence supports, and...9 min read
  4. Microneedling vs Laser Resurfacing: The Honest ComparisonMicroneedling vs laser resurfacing on cost, downtime and pigmentation risk in melanin-rich skin. Cited data from ASPS, the AAD and peer-reviewed trials.9 min read
  5. Microneedling vs Dermaplaning: Surface vs RouteDermaplaning shaves the surface. Microneedling opens a temporary route through it. What each one removes, how long the change lasts, and how...9 min read
  6. Microneedling vs Chemical Peel: Which Does WhatNeedles open channels. Acid exfoliates the surface. Compare microneedling and chemical peels on mechanism, downtime, cost and skin tone, with sources cited.11 min read
  7. What Depth Should a Beginner Use? Start at 0.5 mmStart at 0.5 mm. A first-session microneedling depth guide: why you go shallow, how to work up across sessions, which cartridge to...10 min read
  8. Microneedling Cost: Clinic Sessions vs a Home DeviceUS clinic microneedling runs $200 to $800 a session, average $938. Here is the real arithmetic against a home device, cartridges and...7 min read
  9. How to Choose a Microneedling Pen: The Six SpecsNeedle diameter, depth control, RPM, cartridge sterility, serum delivery and battery. The six specs that tell you if a microneedling pen is...10 min read
  10. Does Microneedling Hurt? What the Depth Actually DeterminesMicroneedling sensation varies by person, depth and area. See measured pain scores, why depth dominates, which areas hurt most, and how to...9 min read
  11. At-Home vs Professional Microneedling: Depth, Cost, CadenceProfessional microneedling goes deeper and happens less often. Compare depth, sterility, cadence and one-year cost, with cited sources and safety rules.9 min read
  12. Nano-Needling vs Microneedling: Where the Line Actually IsOne uses moulded cones and stays on top. The other uses needles and goes through. The word nano now labels both, so...7 min read
  13. What to Expect After Microneedling, Hour by HourFlushed in the first hour, settled by the next morning, ordinary by day two. The home device timeline, and why clinic timelines...7 min read
  14. Microneedling Pen vs Dermaroller: The Mechanical DifferenceA pen stamps vertically. A roller enters and exits on an arc. That one difference produces almost every other, including the one...7 min read
  15. Microneedling Under the Eyes: What the Thin Skin ChangesEyelid skin measures about half the thickness of forehead skin. That changes the depth, the boundary, the technique, and the answer about...7 min read
  16. Microneedling Aftercare: The First 48 Hours, Rule by RuleMicroneedling aftercare is mostly a list of things you do not do. Here is the 48 hour version for a home device,...8 min read
  17. How Often to Microneedle, and Why More Is Not BetterDepth sets the interval, not ambition. Weekly at home, several weeks in clinic, and the honest reason frequency is the worst lever...7 min read
  18. At-Home Microneedling: A Practical Safety and Technique GuideThe practical version: who should not do it, how a session runs, what to do afterwards, and the five mistakes that cause...8 min read
  19. What Is Microneedling? How It Works, and What It Actually Does to SkinMicroneedling makes temporary openings in the outer layer of skin. The mechanism, the four device types, and where the evidence stops.7 min read

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