Microdermabrasion and Dermaplaning for the Esthetics Exam

Microdermabrasion and dermaplaning are the two mechanical exfoliation services every esthetics student needs to know cold. They both lift dead cells off the stratum corneum, but the tools, technique, and contraindications are not interchangeable. State board questions love to mix them up, so the goal here is to make the differences obvious and easy to recall on test day.

What mechanical exfoliation actually means

Mechanical exfoliation is physical removal of dead skin cells using friction or a cutting edge. That is different from chemical exfoliation, which uses acids or enzymes to break the bonds between cells. Microdermabrasion and dermaplaning are both mechanical, both superficial, and both stay above the level of any bleeding or live tissue. If a service draws blood, it is no longer in the esthetician scope of practice in any state.

Microdermabrasion

Microdermabrasion uses a wand combined with vacuum suction. The wand abrades the surface, the vacuum lifts away the loosened dead cells and debris, and the result is a smoother, brighter stratum corneum. Two main wand types show up on exams.

Crystal microdermabrasion

Crystal machines shoot fine aluminum oxide or sodium chloride crystals through a handpiece, blast them across the skin, and then vacuum the crystals back up along with the dead cells. Crystal systems are the older technology. They work, but they create loose particulate that can drift into the eyes, nose, and mouth, so eye protection and careful draping are essential. Many schools still teach crystal because some salons still own the equipment.

Diamond-tip microdermabrasion

Diamond-tip wands have an abrasive diamond-coated head built into the handpiece itself. There are no loose crystals, just the textured tip dragging across the skin while suction pulls debris into a filter. This is the more common system in spas today because there is nothing airborne, cleanup is faster, and the same wand can be fitted with different grits and tip diameters for different areas of the face.

Depth and settings

Microdermabrasion is a superficial service. Done correctly it removes only the outermost layer of the stratum corneum. There should be no pinpoint bleeding, no broken capillaries, no raw spots. Two settings drive the aggressiveness of the treatment:

• Vacuum pressure: higher suction lifts more cells and pulls the skin tighter into the tip, which increases depth. Lower pressure is used on thin skin, the neck, and around the eyes.
• Tip size and grit: larger tips cover more area per pass and are used on the cheeks and forehead. Smaller tips are used around the nose, chin, and other tight areas. Coarser grit is more aggressive.

Multiple sessions are part of the plan. A single microdermabrasion will leave the skin looking refreshed for a few days, but real changes in tone and texture come from a series, usually spaced two to four weeks apart so the barrier has time to recover.

Stroke pattern

Work in slow, even strokes. Keep the skin taut with the non-dominant hand. Lift the wand at the end of every pass instead of dragging it back. Do not overlap excessively, and never park the tip in one spot, because static contact under suction is how bruising and broken capillaries happen. Most protocols use two to three passes total, often crossing the first pass at a perpendicular angle on the second.

Best uses for microdermabrasion

• Dull, lifeless surface tone
• Rough texture and uneven feel
• Fine surface lines
• Mild superficial hyperpigmentation
• Mild congestion and clogged pores

Contraindications for microdermabrasion

• Active acne flare with pustules or cysts
• Rosacea, especially with active flushing or papules
• Active herpes simplex (cold sores) anywhere on the treatment area
• Recent retinoid use within the past several days
• Isotretinoin (Accutane) within the past six months
• Sunburn or windburn
• Open wounds, scabs, or any compromised barrier
• Autoimmune skin conditions such as lupus on the face
• Recent waxing, peels, or laser on the same area

Dermaplaning

Dermaplaning is manual exfoliation with a sterile, single-use surgical blade held against the skin at a 45-degree angle. The blade scrapes away dead cells from the stratum corneum and, at the same time, removes vellus hair (peach fuzz). It is one of the most satisfying services on the menu because results are visible immediately, but the technique has to be exact.

The blade and scope of practice

Dermaplaning blades are medical-grade and single-use. Some states allow estheticians to use a #10 surgical scalpel mounted on a handle. Other states restrict scalpel use and require a dermaplaning-specific safety blade with a guard, or limit dermaplaning to medical settings entirely. Knowing what your state board allows is part of the exam in many regions, so check the rules where you plan to work.

Technique

Skin must be cleansed and dry. Some practitioners apply a thin layer of facial oil for glide; others prefer bare skin so the blade catches every hair. Either approach is acceptable as long as it is consistent.

• Hold the skin taut with two fingers of the non-dominant hand to create a flat, stable surface.
• Angle the blade at 45 degrees to the skin. Steeper angles can nick. Flatter angles do not exfoliate.
• Use short, light, feathered strokes in one direction. Lift the blade between strokes rather than dragging back.
• Work in small sections so you can track what has been done.

Areas to avoid

Dermaplaning is a face service, not a full-face shave. Skip these areas:

• The eyebrows themselves (you will alter the shape)
• The eyelids
• Inside the nostrils
• The lips and immediate vermilion border
• Any active lesion, mole, or skin tag

Best uses for dermaplaning

• Dull skin and rough texture
• Better makeup application: foundation sits flatter once vellus hair is removed
• Improved product penetration after the service
• Mild surface dryness and flaking
• Pre-treatment before a chemical peel for deeper, more even penetration

The vellus hair myth

The single most common client question is whether the peach fuzz will grow back darker or thicker. The answer is no. Vellus hair grows back exactly as it was before. What clients sometimes feel a few days post-service is a stubbly sensation, and that is purely about the cut. Untouched vellus hair tapers naturally to a fine point. Once the blade cuts it, the regrowing hair has a blunt tip until the new hair fully reaches the surface, so it can feel coarser even though the diameter and color are unchanged. State boards test this directly, so memorize it: dermaplaning does not change hair color, thickness, or growth rate.

Frequency

Most clients book dermaplaning every three to four weeks. That spacing matches the natural cell turnover cycle and lets vellus hair grow back enough to be worth treating again.

Contraindications for dermaplaning

Dermaplaning shares most contraindications with microdermabrasion plus a few of its own:

• Active acne with pustules or cysts (the blade can drag bacteria across the face)
• Rosacea with active inflammation
• Active cold sores or any herpes outbreak
• Recent retinoid use
• Isotretinoin within the past six months
• Sunburn or compromised barrier
• Keratosis pilaris on the face (raised follicular bumps catch the blade)
• Eczema or dermatitis flare
• Hirsutism caused by hormonal conditions, where coarse terminal hair would dull the blade and produce uneven results

Microdermabrasion vs dermaplaning at a glance

Combination services

Pairing services is where advanced facials get their results. A common stack is dermaplaning first, then a chemical peel. Removing the vellus hair and the top layer of dead cells lets the peel acid reach a more uniform surface, which produces a more even result and reduces the chance of patchy frosting. Microdermabrasion before a peel works similarly but is generally a more aggressive combination, so peel strength is usually dialed back when the two are stacked. Always match the service intensity to the skin in front of you, not to a script.

Sanitation and infection control

Microdermabrasion

• Disinfect or replace tips per the manufacturer protocol. Some diamond tips are single-use; others are autoclavable.
• Filters and tubing get cleaned or replaced on the schedule the manufacturer specifies.
• Wipe down the wand handle and machine surfaces with an EPA-registered hospital-grade disinfectant between clients.
• Crystal canisters get fresh crystals between clients; used crystals are never reused.

Dermaplaning

• The blade is single-use, period. Snap it off the handle and drop it directly into a sharps container as soon as the service ends.
• The handle gets disinfected per state rules. Some states require autoclaving the handle between clients; others allow high-level disinfection.
• Gloves are worn for the entire service.
• Anything that touches the blade or the freshly exfoliated skin is fresh and clean for each client.

What state boards actually test

1. Depth and mechanism. Both services are mechanical, both stay in the stratum corneum, and neither should draw blood.
2. Scope of practice. Know what your state allows for blade type and where dermaplaning sits between cosmetology and medical practice.
3. Contraindications. Active acne, rosacea flare, herpes, retinoids, isotretinoin within six months, sunburn, and compromised barrier rule out both services.
4. The vellus hair myth. Dermaplaning does not change hair growth. Stubble is a cut-end illusion, not new hair behavior.
5. Single-use blade rule. Dermaplaning blades are never reused, never shared, and go straight into a sharps container.
6. Blade angle. 45 degrees. Memorize the number.

Get those six points locked in and the microdermabrasion and dermaplaning questions on your written exam become some of the easiest points on the test.