Aczone vs Clindamycin

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. Clindamycin: A prescription antibiotic lotion, gel or foam for inflamed acne. It should never be used on its own, because bacteria become resistant to it quickly.

Reviewed by Dr. Schwarz, Board-Certified Dermatologist

A white metal tube lying at an angle on a white background, white ribbed cap to the left, labeled Clindamycin in black lettering with a teal swoosh curving beneath the word.

Which one?At a glance What it treats Diagrams How you take it Results Side effects Safety Cost When you stop Questions

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 Clindamycin if…

Choose for red, inflamed acne as a short-term partner to benzoyl peroxide or a retinoid — never on its own.

Inflamed spots rather than blackheads
You'll pair it with benzoyl peroxide
You want something that rarely irritates

Alternatives, not combined

Can you take them together?

Both are anti-inflammatory acne gels, so most people use one or the other. If you use clindamycin, pair it with benzoyl peroxide to prevent resistance.

At a glance

● Aczone

● Clindamycin

Type

Topical anti-inflammatory (dapsone gel)

Topical antibiotic

What it does

Calms red, tender acne spots

Reduces acne bacteria and inflammation

Best for

Inflamed acne

Inflamed acne, always with benzoyl peroxide

Prescription

Yes

Form

Gel, 5% or 7.5%

Lotion, gel, solution or foam, 1%

How often

7.5% once daily; 5% twice daily

Once or twice daily

Course length

Ongoing

Up to about 3 months

Time to results

4–12 weeks

2–6 weeks

Main side effect

Mild dryness

Blood tests

None for the gel

None

Pregnancy

Check with your clinician

Generally considered OK

Cost

Moderate; generic available

Low; generic available

What it treats

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

Evidence level

Aczone

Clindamycin

Strong evidenceMost established uses

Acne

Reduces inflamed breakouts in large trials.

Acne

Reduces inflamed spots with benzoyl peroxide.

Moderate evidenceSome supportive research

—

The back of the neck and upper back on fair skin, covered in small red bumps of even size, each one at a hair opening, several with a pinpoint of yellow-white pus.

Folliculitis

Clears bacterial bumps.

An inflamed lump in the armpit on fair skin. The skin over it is swollen, shiny and red, with a pair of small blackhead-like openings in the skin beside it.

Hidradenitis Suppurativa

Helps mild disease.

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.

Blackheads

Doesn't unclog pores.

Not effective

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. 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

Clindamycin. Helps reduce acne bacteria and inflamed spots. 1. Slows acne bacteria: Blocks the 50S 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 50S 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.

When to Apply: Once or twice a day depending on the product, a thin layer over the whole area, not single spots. With a retinoid at night, clindamycin goes in the morning.

How to Start: Full strength from day one. No ramp-up, because it rarely irritates.

If It Irritates: Uncommon. Mild dryness settles with a moisturizer. Redness or itch that builds over days can be a reaction to the base — stop and ask.

If It’s Not Working: No higher dose. It belongs alongside benzoyl peroxide or a retinoid, so the next move is a partner drug, not more of this one.

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 blood tests. Monitoring is clinical — at eight to twelve weeks, has the inflamed acne improved.

Not a drug to stay on for years. Bacterial resistance builds with use, which is why a course that worked once may not work again. Stop once acne is controlled and hold the result with a retinoid and benzoyl peroxide.

When you’ll see results

Approximate windows, not promises.

● Aczone

● Clindamycin

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.

After 12 weeksIf inflamed spots still appear at the same rate, resistance or another diagnosis is likely.

Weeks 1 to 2

Weeks 1 to 2Little visible change.

Weeks 2 to 6

Weeks 2 to 6Red bumps get less sore and less frequent. Blackheads do not change; it does not act on them.

Side effects

Sorted by what to do about them.

Aczone

Clindamycin

Common

Mild dryness or oiliness
Orange tint if used with benzoyl peroxide at the same time

Common

Mild dryness
Stinging from alcohol solutions

Tell your doctor

Irritation that doesn't settle

Tell your doctor

Redness or itch that builds over days

Stop and get care

A spreading rash or blisters
Breathlessness, pale skin or blue-tinged lips

Stop and get care

Watery or bloody diarrhea, cramps or fever

Safety and who should avoid it

Pregnancy

Ask first

Discuss with your clinician.

Topical clindamycin is generally considered acceptable.

Breastfeeding

Ask first

Discuss with your clinician.

Keep it off the nipple area.

Children

9 and older

Approved from age 9 (7.5%) or 12 (5%).

12 and older

Approved from age 12.

Monitoring

None routine

Unlike dapsone tablets, no blood tests.

None

Review at 8–12 weeks.

Key interactions

Check

Benzoyl peroxide at the same time (orange tint); oral dapsone.

Check

Never use alone; avoid erythromycin at the same time.

Other cautions

Avoid

Allergy to dapsone or sulfones.

Use care

History of colitis or inflammatory bowel disease; allergy to clindamycin or lincomycin.

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.

Generic 1% solution and gel are cheap and widely stocked. Combinations with benzoyl peroxide are moderately priced, some generic. The triple combination with a retinoid is brand only and needs prior authorization.

When you stop

Comes back?

Yes. Red spots come back within weeks to a couple of months.

With a retinoid or benzoyl peroxide in place, results hold. Used alone, acne returns within weeks.

Taper needed?

No rebound and no taper.

No.

After the last dose

Inflammation returns to its old level.

Keep the partner treatment 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.

Clindamycin:Why can't I just use clindamycin on its own?

The bacteria adapt within months, and it does nothing to the clog that starts the spot. Benzoyl peroxide alongside prevents most of the resistance.

Clindamycin:It worked last year and does nothing now. Why?

The expected pattern after repeated solo courses. Resistant bacteria are already there when you restart.

Clindamycin:Is a topical antibiotic safer than tablets?

Less reaches the body, so side effects are milder. Resistance still develops, and rare bowel effects are reported.