Compare · Medications

Aczone vs Seysara

Aczone: An anti-inflammatory gel for red, tender acne. It is not a retinoid and not a standard antibiotic, so it suits skin that cannot tolerate either. Seysara: A once-daily oral antibiotic designed specifically for acne. Its narrower reach is meant to disturb the rest of the body's bacteria less.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist
Aczone — Header ImageSeysara shown in recognizable oral medication carton or bottle matching the reference packaging, with three beige oval tablets beside it.
Which one?At a glanceWhat it treatsDiagramsHow you take itResultsSide effectsSafetyCostWhen you stopQuestions

Which one is right for you?

Choose Aczone if…

Choose for red, tender acne when skin can't tolerate a retinoid or you want to avoid a standard antibiotic.

  • Inflamed spots rather than blackheads
  • Sensitive skin that reacts to retinoids
  • You want a morning step that sits well under makeup

Choose Seysara if…

Choose for inflamed acne needing tablets when you want an antibiotic designed to disturb other body bacteria less — if insurance covers it.

  • Inflamed face, chest or back acne
  • You had gut or yeast trouble on other antibiotics
  • Insurance or savings cover the brand
Often combined

Can you take them together?

Seysara tablets are often paired with a topical such as Aczone for moderate acne. The aim is to stop the antibiotic after about 3 months and keep the topical.

At a glance

● Aczone
● Seysara
Type
Topical anti-inflammatory (dapsone gel)
Narrow-spectrum tetracycline (sarecycline)
What it does
Calms red, tender acne spots
Targets acne bacteria with less effect on other bacteria
Best for
Inflamed acne
Moderate to severe inflamed acne, including chest and back
Prescription
Yes
Yes
Form
Gel, 5% or 7.5%
Tablet
How often
7.5% once daily; 5% twice daily
Once daily, dose by weight
Course length
Ongoing
About 3 months
Time to results
4–12 weeks
3–12 weeks
Main side effect
Mild dryness
Nausea
Blood tests
None for the gel
None
Pregnancy
Check with your clinician
Avoid
Cost
Moderate; generic available
High; brand only

What it treats

Compare uses by strength of evidence. Evidence level describes confidence in a benefit, not its size.

Evidence level
Aczone
Seysara
Strong evidenceMost established uses
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

Reduces inflamed breakouts in large trials.
Inflamed acne on light skin. The spots sit in a patch of pink, and the ring of redness around each one is easy to see. A few have a yellow-white head, and the skin between them is dry and flaking.

Acne

Reduces inflamed face, chest and back acne.
Limited evidenceEarly or small studies
Redness and fine superficial vessels across a light-skinned cheek and nose.

Rosacea

Small studies show fewer bumps.
—
Little evidence
dark keratin plugs in dilated pores on the nose and adjacent left cheek, with the face turned to the person’s right on light skin.

Blackheads

Weaker on clogged pores than retinoids.
Redness and fine superficial vessels across a light-skinned cheek and nose.

Rosacea

Not studied for rosacea.
dark keratin plugs in dilated pores on the nose and adjacent left cheek, with the face turned to the person’s right on light skin.

Blackheads

Doesn't unclog pores on its own.
Not effective
Acne scarring on light skin. Small sharply cut pits and broad shallow dips across a cheek, several sitting inside faint flat pink marks, with no active spots.

Acne Scarring

Doesn't change scars.
—
Can make it worse
—
Shoulders and upper back on fair skin, covered in a sheet of many small pink-red bumps, all of them the same size and packed close together.

Fungal Acne

Antibiotics can let yeast overgrow.
How it works

Aczone

Aczone. Dapsone gel helps calm inflammatory acne. 1. May calm neutrophil activity: Can reduce some inflammatory actions of these immune cells. 2. May reduce inflammatory oxidants: Can limit release of tissue-irritating molecules. 3. Reduces inflamed acne spots: Red bumps and pimples can improve over time.
Open full-size diagram
Diagram explanation and sources

May calm neutrophil activity: Can reduce some inflammatory actions of these immune cells. May reduce inflammatory oxidants: Can limit release of tissue-irritating molecules. Reduces inflamed acne spots: Red bumps and pimples can improve over time.

The acne mechanism is unknown. Neutrophil and oxidant explanations are proposed based on experimental studies, not established as the cause of topical clinical benefit.

Source 1 · Source 2 · Source 3

Seysara

Seysara. Sarecycline helps treat inflamed acne. 1. Slows acne bacteria: Blocks the 30S ribosome that bacteria use to make proteins. 2. Limits bacterial growth: Susceptible C. acnes has less ability to multiply. 3. Reduces inflamed spots: Red bumps and pimples can gradually improve.
Open full-size diagram
Diagram explanation and sources

Slows acne bacteria: Blocks the 30S ribosome that bacteria use to make proteins. Limits bacterial growth: Susceptible C. acnes has less ability to multiply. Reduces inflamed spots: Red bumps and pimples can gradually improve.

Bacterial protein-synthesis inhibition is established. The complete acne mechanism and the contribution of individual antibacterial and anti-inflammatory effects are not fully defined. This does not imply direct exfoliation, oil-gland shrinkage, or treatment of resistant bacteria.

Source 1

How you take it

Treatment plan

When to Apply: Clean dry skin, whole affected area. The 7.5% gel once a day, the 5% gel twice, usually in the morning so the night is free for a retinoid.

How to Start: Full strength from day one. It dries clear and sits well under makeup and sunscreen.

If It Irritates: Uncommon — usually mild dryness a moisturizer settles. With benzoyl peroxide at the same moment it can turn skin temporarily orange-brown, which is harmless and avoided by using the two at different times of day.

If It’s Not Working: Give it twelve weeks. There is no step up in strength, so the next move is adding or changing a drug.

Dosing is by body weight and fixed from day one. No build-up, no titration.

Starting dose: The weight band dose, once daily, from day one.

Going up: No step up within a weight band. If acne is not responding, look at the whole plan rather than raise the dose.

Usual dose: 60 mg, 100 mg or 150 mg once daily, set by weight.

Total course: About three to four months. As with any oral antibiotic for acne, reassess at around three months and stop once topical treatment can hold the result.

Monitoring

No routine blood tests for the gel. Unlike dapsone tablets, you do not need G6PD testing first, because so little is absorbed.

You can stay on this for years, and nothing accumulates. Review is clinical, at about twelve weeks and then yearly.

No routine blood tests for a standard three to four month acne course in a healthy person. Monitoring is clinical, with a review at about three months.

Yeast infections came up in the trials, mostly vaginal thrush. They are easy to treat and not a reason to stop.

Longer term, the rule is the same as for every oral antibiotic in acne: keep courses short, with a topical retinoid alongside to hand the job to. The narrower spectrum is a reason to expect less collateral disruption, not a license to stay on it.

When to take it
Not covered in this guide yet

Once a day, same time, with or without food. Take it with a full glass of water and stay upright for at least 30 minutes — a tetracycline tablet that lodges in the food pipe can burn the lining.

Space antacids, iron and calcium by about two hours; they bind the drug.

If you miss a dose
Not covered in this guide yet

Take it when you remember, the same day. If it is nearly time for the next one, skip it. Never take two at once.

When you’ll see results

Approximate windows, not promises.

● Aczone
● Seysara
Weeks 1 to 4

Weeks 1 to 4Red, tender spots calm down. Blackheads and whiteheads look unchanged.

Weeks 4 to 8

Weeks 4 to 8Fewer new inflamed spots.

After 12 weeks

After 12 weeksIf inflamed acne has not improved, move on. Judge it on red spots only — it was never going to fix clogs.

First dose

First doseTaking it: One tablet a day, with or without food. Nausea, if it happens, is mild and shows up in the first fortnight.

Weeks 1 to 2

Weeks 1 to 2Settling in: Little change yet.

Weeks 3 to 6

Weeks 3 to 6Working: Red, sore papules and pustules become fewer and less painful. Trials saw a difference from around week three.

Weeks 8 to 12

Weeks 8 to 12Judge it here: Most of what an antibiotic will do has happened. Dark marks fade too, because fewer new spots form — that takes months, and sun protection helps.

Side effects

Sorted by what to do about them.

Aczone

Seysara

Common
Common
  • Mild dryness or oiliness
  • Orange tint if used with benzoyl peroxide at the same time
Common
  • Nausea
  • Sun sensitivity
Tell your doctor
Tell your doctor
  • Irritation that doesn't settle
Tell your doctor
  • Headache or vision change
Stop and get care
Stop and get care
  • A spreading rash or blisters
  • Breathlessness, pale skin or blue-tinged lips
Stop and get care
  • Watery or bloody diarrhea with fever
  • Severe headache with blurred vision

Safety and who should avoid it

Pregnancy
Ask first
Discuss with your clinician.
Avoid
Ask the doctor managing your pregnancy.
Breastfeeding
Ask first
Discuss with your clinician.
Avoid
Discuss with your clinician.
Children
9 and older
Approved from age 9 (7.5%) or 12 (5%).
9 and older
Approved from 9.
Monitoring
None routine
Unlike dapsone tablets, no blood tests.
None
Review at 12 weeks.
Key interactions
Check
Benzoyl peroxide at the same time (orange tint); oral dapsone.
Check
Isotretinoin; antacids, iron, calcium.
Other cautions
Avoid
Allergy to dapsone or sulfones.
Avoid
Tetracycline allergy.

Cost and getting it

Getting it and cost

Generic dapsone gel comes in both strengths and costs far less than it used to, though still more than generic clindamycin or benzoyl peroxide. Some plans want prior authorization, usually after a retinoid.

Brand only, no generic, and far more expensive than generic doxycycline or minocycline. Coverage is inconsistent and prior authorization is common, usually requiring a cheaper tetracycline first.

Manufacturer savings cards exist and the terms change often. If cost is the barrier, raise it at the appointment, not at the pharmacy counter.

When you stop

Comes back?
Yes. Red spots come back within weeks to a couple of months.
Acne returns unless topical treatment is in place.
Taper needed?
No rebound and no taper.
No.
After the last dose
Inflammation returns to its old level.
Keep a retinoid and benzoyl peroxide going.

Common questions

Aczone:Why did my face turn orange?

Benzoyl peroxide and dapsone applied together can leave a temporary orange-brown tint on skin and light-colored facial hair. It washes off and is harmless. Use them hours apart.

Aczone:Do I need a G6PD test first?

Not for the gel. That belongs to dapsone tablets, where far more of the drug reaches the bloodstream.

Aczone:Will it clear my blackheads?

No. It works on inflammation. Blackheads need a retinoid.

Aczone:Is it an antibiotic?

No. It is a sulfone with anti-inflammatory action, which is why resistance is not the same concern.

Seysara:How is it different from doxycycline?

It acts on a narrower range of bacteria, so it disturbs gut bacteria less, and it is once daily with or without food. It has not been shown to clear acne better, and it costs considerably more.

Seysara:Does the narrow spectrum actually matter?

In the laboratory, clearly. For patients over years, the evidence is thin.

Seysara:How long will I be on it?

Usually three to four months, like the other oral antibiotics for acne. Still refilling a year later means the plan needs revisiting.

Seysara:Can I take it with food?

Yes. Space antacids, iron and calcium by about two hours.

Seysara:Will it make me burn in the sun?

Sun sensitivity is reported less often than with doxycycline, but this is still a tetracycline. Keep using sunscreen.

Seysara:Why is it so expensive?

Brand only, no generic. Many plans require a generic tetracycline first.

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