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TrimBeardCrest
A trimmer, clippers, a cutting comb and a neck brush laid out on a bench mat.

Blades, zones, lengths

Know the blade.Then the beard.

A rotary head and a foil head cut differently, and the difference turns up first on the neck. This site sorts shaving and beard gear by the cutting system inside it and by the part of the face it has to work on. Nothing here has been tested or ranked, and no characteristic appears that its listing did not state.

Start with a zone

Photograph by Federico Tonini

Cross-sections, not photographs

Five systems

Each of these cuts by a different arrangement of parts, and each arrangement decides what it can do to a face. The drawings show the part that matters.

  • Rotary heads

    Three floating caps with cutters turning underneath. Why the geometry suits a curved jaw, why it draws no line, and what happens when hair gets long.

    Rotary heads

  • Foil heads

    A perforated sheet over a cutter moving side to side. What the flat surface gains you, what it gives back on a curve, and why lather changes the feel of a pass.

    Foil heads

  • Single-blade hybrids

    One double-sided blade that trims on a comb and shaves without one. What sits between a foil and a trimmer, and what it deliberately does not do.

    Single-blade hybrids

  • T-blade outliners

    A straight cutter set wider than its housing, with a square corner at each end. What an exposed edge is for, and what it does if used for anything else.

    T-blade outliners

  • Dual-edge rotary tips

    The smallest cutting system here: a cylinder turning inside a slotted cap. Why the cap matters more than the edge, and why depth is fixed by design.

    Dual-edge rotary tips

Where the hair actually is

Six zones

The arrows on each dial show the way hair lies in that area. It is the reason one appliance behaves like two different appliances between a cheek and a throat.

  • Clippers worked along a jaw, with one hand holding the hair above the line clear.

    Cheeks and jawline

    Downward across the flat of the cheek, turning as it reaches the jaw, and often reversing altogether under the chin.

    Photograph by Salah Regouane

    Cheeks and jawline
  • Clippers taken across the nape at the back of a head, seen from behind.

    Neckline

    Several directions at once, meeting in swirls under the jaw and along the throat, with no single grain to work with or against.

    Photograph by Hai Phung

    Neckline
  • Two wide-toothed wooden combs lying on a pale cloth.

    Mustache and lip

    Splitting outward from the middle, running down and away toward each corner of the mouth, with the two halves rarely quite matching.

    Photograph by The Skin and The Beard Story

    Mustache and lip
  • Scissors and a comb held together against the hair above an ear.

    Sideburns and temples

    Downward and slightly backward toward the ear, with the hair changing from head hair to beard hair somewhere in the middle without announcing where.

    Photograph by Jonathan Cooper

    Sideburns and temples
  • A small cordless trimmer with a comb fitted, standing alone on a pale surface.

    Nose and ears

    No single direction. Hair in a nostril and along the rim of an ear sits at whatever angle it started at, which is why nothing here is worked with the grain or against it.

    Photograph by Juan Domenech

    Nose and ears
  • A straight razor and a comb worked across the back of a head, seen from behind.

    Scalp

    Radiating outward from a crown, which means the direction changes continuously and there is no single stroke that suits the whole head.

    Photograph by Fábio Alves

    Scalp

One row per product group

One per group

Each row below is the listing holding the first badge in its group, and every badge on this site is awarded on a figure or a fact from the listing itself. The links go to the group, not to a shop.

  • Honest Amish Beard Oil, 2 oz, seller photographHonest Amish Beard Oil, 2 ozOils and balmsThe listing states a blend of seven or more natural oils.Beard Oils and Balms
  • Superer 15V Charger for Philips shavers and trimmers, seller photographSuperer 15V Charger for Philips shavers and trimmersPower and refillsThe listing states a 15V output.Power and Refills
  • Philips Nose Trimmer 5000 NT5600/62, seller photographPhilips Nose Trimmer 5000 NT5600/62Nose and earThe listing states a nose trimmer.Nose and Ear Trimmers
  • Philips Norelco 3600 Rotary Shaver S3243/91, seller photographPhilips Norelco 3600 Rotary Shaver S3243/91RotaryThe listing states 27 self-sharpening ComfortCut blades.Rotary Shavers
  • Panasonic ARC5 Foil Shaver ES-LV65-S, seller photographPanasonic ARC5 Foil Shaver ES-LV65-SFoilThe listing states a 5-blade foil.Foil Shavers
  • Philips OneBlade 360 Face and Body QP4631/90, seller photographPhilips OneBlade 360 Face and Body QP4631/90Single bladeThe listing states a 360 blade.Single-Blade Hybrids
  • Philips Norelco 9000 All-in-One 23-in-1 MG9575/49, seller photographPhilips Norelco 9000 All-in-One 23-in-1 MG9575/49TrimmersThe listing states a beard styler, nose and detail trimmer.Beard Trimmers

Four recurring mistakes

Where people go wrong

  • Buying a second appliance to fix a problem the first one never had. Most complaints about patchiness are complaints about length, and length is free to change.
  • Reading a number in a product name as a list of abilities. It counts the objects in the box, and most of those objects are combs.
  • Treating a plug that fits as a plug that matches. Two supplies here state different voltages and look almost identical in a photograph.
  • Expecting one mechanism to do every job. Nothing on this site draws a clean line and covers a whole cheek equally well, and the listings do not claim otherwise.

In this order

Before anything else

  • Work out what you own

    Turn the appliance over and find out which of the five systems is inside it. Almost nobody knows, and it decides what the thing in your hand can and cannot be asked to do.

  • Pick the area that bothers you

    A neck is not a cheek and a nostril is not either of them. Naming the area narrows the question from a whole catalog to a page, and often to nothing at all.

  • Only then look at listings

    By that point you are checking a specific claim against a specific need, which is a two-minute job. Starting at the listings is how people end up with a drawer.