Selective Sebaceous Gland Ablation for Acne in Singapore

Selective sebaceous gland ablation uses targeted radiofrequency energy to treat selected glands associated with active acne1,2. At The Skin Longevity Clinic, the discussion begins with acne assessment to establish whether a local procedure fits the wider treatment plan.

The procedure differs from fractional RF microneedling for scars and texture, which treats a broader area of dermal tissue3. This page explains suitability, the appointment, recovery, risks and questions to ask before proceeding.

Book a Consultation

Selective sebaceous gland ablation at a glance

What does the treatment target?

Selected sebaceous glands associated with recurrent inflammatory acne

How is energy delivered?

An insulated microneedle delivers controlled radiofrequency energy at gland depth

Which acne may respond?

Recurrent inflammatory papules, pustules and deeper lesions in selected areas

Is it the same as acne scar RF microneedling?

The technologies are related, but the needle design, treatment pattern and target differ

How many sessions are used?

Published studies commonly used three sessions, although individual plans vary

When do results appear?

Improvement develops over several weeks as inflammation settles and treated follicles remodel

Can acne return?

Recurrence can occur in treated or untreated follicles, particularly when hormonal or comedonal drivers remain active

Can it replace acne medication?

It may reduce reliance on medication in selected patients, but medical therapy may still be required

What is the downtime?

Redness, swelling, tenderness and small crusts may last several days

What are the important risks?

Burns, pigment change, infection, scarring and uneven tissue effects are possible

What is selective sebaceous gland ablation?

The medical term used in published studies is selective sebaceous gland electrothermolysis. The procedure uses radiofrequency energy to create a controlled thermal effect within selected sebaceous glands.

Acne develops through several interacting mechanisms:

  1. Sticky skin cells block the follicular opening
  2. Sebaceous glands produce excess sebum
  3. Cutibacterium acnes activity increases within the blocked follicle
  4. Inflammation produces papules, pustules, nodules and cysts

Sebum is therefore one part of acne biology rather than the only cause. Targeting selected sebaceous glands may reduce inflammatory activity in recurrent follicles, while medical skincare remains important for blocked pores, microbial balance and maintenance. Current acne guidelines strongly support topical retinoids, benzoyl peroxide and appropriate combination therapy, with oral or hormonal treatment used according to severity and scarring risk.

How does the procedure work?

The doctor first identifies recurrent lesions and follicular openings that appear to be contributing to active inflammatory acne. After the skin is prepared and numbed, an insulated single microneedle is introduced through the follicular opening towards the sebaceous gland.

Radiofrequency energy is then delivered at a controlled depth. Insulation along part of the needle helps concentrate the thermal effect near the intended target rather than along the full path through the skin.

The treated gland undergoes a controlled thermal response. Oil production from that selected follicle may decrease as healing and tissue remodelling occur.

The procedure targets individual glands rather than every sebaceous gland on the face. The aim is to reduce activity in problematic follicles while preserving normal skin function in surrounding areas.

What do the clinical studies show?

A randomised study with 63 participants completing treatment found greater improvement in inflammatory acne at 12 weeks than a control involving microneedling and extraction2. The small earlier pilot also reported improvement, with relapse recorded in two of its 12 participants at the one year follow up1.

These findings support discussing the procedure for selected patients, while leaving uncertainty about long term outcomes across different acne patterns1,2. Our article on whether acne can return after oil gland treatment examines remission, recurrence and the limits of the evidence.

How does it differ from fractional RF microneedling?

The two procedures are commonly confused because both use microneedles and radiofrequency energy.

Feature Selective sebaceous gland RF Fractional RF microneedling
Main target Individual acne prone follicles and sebaceous glands A broader field of dermal tissue
Primary purpose Recurrent active inflammatory acne Acne scars, pores, texture, fine lines and firmness
Needle pattern Single insulated microneedle or highly targeted application Multiple needles treating a fractional skin area
Immediate goal Reduce gland activity in selected follicles Create controlled dermal injury for collagen remodelling
Treatment area Mapped lesions or acne prone zones Wider sections of the face
Role in scars Limited direct scar correction More relevant for selected atrophic scars
Role in blackheads May treat selected blocked follicles, but does not replace comedonal therapy Limited effect on the cause of widespread comedones

The existing clinic page on radiofrequency microneedling in Singapore explains the broader fractional treatment used for scars, pores and skin texture. The present page focuses on active acne and selected sebaceous glands.

Who may be suitable?

Selective sebaceous gland destruction in acne with RF microneedling  can be considered when:

  • Inflammatory acne repeatedly appears in the same facial areas
  • Individual papules, pustules or deeper lesions persist despite appropriate skincare
  • Sebum activity appears to be an important contributor
  • Previous treatment has improved acne temporarily but lesions continue to recur
  • Medication tolerance is limited
  • The patient prefers a targeted procedural option within a wider acne plan
  • Acne is creating a significant risk of pigmentation or scarring

Patients with recurrent jawline acne may be considered, although hormonal drivers often need medical assessment as well. Treating selected glands does not correct an underlying hormonal condition.

When another acne treatment may be more appropriate

Widespread blackheads and whiteheads usually need treatment that normalises follicular turnover across a larger area. Topical retinoids, salicylic acid, azelaic acid and chemical peels may be more relevant for this pattern.

Severe nodulocystic acne, rapidly worsening acne or acne that is already scarring may require oral treatment. Current guidelines strongly recommend isotretinoin for severe disease, significant scarring risk or failure of standard therapy when medically appropriate.

Acne like eruptions may also represent folliculitis, rosacea, perioral dermatitis or another skin condition. A diagnosis should therefore come before gland ablation.

What happens during treatment?

A typical appointment includes:

  1. Medical consultation and acne assessment
  2. Review of current skincare, medication and previous treatment
  3. Mapping of recurrent lesions and treatment zones
  4. Clinical photography where appropriate
  5. Cleansing and topical or local anaesthesia
  6. Extraction or drainage of selected follicles where clinically indicated
  7. Controlled delivery of RF energy to selected sebaceous glands
  8. Post treatment cleansing and calming care
  9. Written aftercare and review planning

The treatment time depends on the number of lesions and areas being treated. A patient with several recurrent jawline lesions requires a different session from someone with widespread inflammatory acne.

How are sessions and follow up planned?

Published selective sebaceous gland studies commonly used three sessions at approximately four week intervals. That protocol should not be treated as a fixed rule for every patient.

The recommended course depends on:

  • Number of recurrent lesions
  • Acne severity
  • Treatment area
  • Hormonal pattern
  • Response after the first session
  • Use of topical or oral treatment
  • Tendency to develop post inflammatory pigmentation
  • Skin recovery between sessions


The clinic reviews the response before repeating treatment. Continuing to apply energy without reassessing the diagnosis can increase irritation without improving the underlying acne.

When can results be seen?

Redness and swelling may make the treated area look temporarily more inflamed during the first few days. Acne lesions usually settle progressively rather than disappearing immediately.

Published studies assessed clearer improvement over several weeks, commonly around 8 to 12 weeks after a staged course. Collagen remodelling and repair around treated follicles may continue for longer.

The result should be judged by:

  • Fewer inflammatory lesions in treated areas
  • Reduced frequency of recurrence
  • Less tenderness and swelling
  • Reduced oil production from selected follicles
  • Lower formation of new post acne marks
  • Reduced risk of further scarring

Recovery and aftercare

What is the downtime?

Common short term reactions include:

  • Redness
  • Swelling
  • Tenderness
  • Pinpoint crusts
  • Temporary dryness
  • Mild bruising
  • A short acne flare
  • Temporary darkening in pigment prone skin


These effects often settle over several days, although deeper lesions or more intensive treatment may take longer.

Patients should avoid picking at crusts or treated acne. Gentle cleansing, moisturiser and sunscreen support recovery.

Aftercare


Aftercare may include:

  • Gentle cleansing
  • Non irritating moisturiser
  • Broad spectrum sunscreen
  • Avoidance of scrubs and exfoliating acids
  • Temporary pause of retinoids and strong acne actives
  • Avoidance of picking or squeezing
  • Reduced heat exposure and strenuous exercise during early recovery
  • Review if pain, swelling or discharge worsens


The exact timing for restarting active skincare depends on the intensity of treatment and the condition of the skin.

Risks and side effects

Selective RF microneedling is a medical procedure that creates heat within the skin. Possible complications include:

  • Burns
  • Persistent inflammation
  • Infection
  • Post inflammatory hyperpigmentation
  • Hypopigmentation
  • Scarring
  • Uneven texture
  • Prolonged tenderness
  • Unwanted reduction in local tissue volume
  • Unsatisfactory or incomplete improvement


The United States FDA issued a 2025 safety communication5 after receiving reports of burns, scarring, fat loss, disfigurement and nerve damage with certain uses of RF microneedling. These reports do not establish that every RF procedure carries the same risk, but they reinforce the importance of trained medical delivery, appropriate depth and conservative energy selection.

Asian skin may be more prone to post inflammatory pigmentation after excessive inflammation. Dr Rachel Ho therefore considers active acne severity, skin tone, pigment history, barrier condition and previous procedural reactions before treatment.

What affects the cost of sebaceous gland ablation in Singapore?

A quotation depends on the lesions and areas selected for treatment, together with the proposed course. Ask whether the estimate covers the consultation, preparation, procedure and any planned review or further visit.

The cost of one session should be distinguished from the cost of a complete plan. Contact the clinic to arrange assessment and discuss what is included before proceeding.

How does the procedure fit into an acne plan?

Medical treatment may remain part of the plan because acne can require approaches with different mechanisms of action4. Read our main acne treatment guide for the broader discussion of medicines and selected procedures.

Ask which lesions the proposed treatment will target and what care is recommended for the remaining acne. Clarifying those goals also makes subsequent review more useful.

Dr Rachel Ho’s clinical perspective

Selective sebaceous gland RF treatment is most useful when inflammatory acne repeatedly returns from identifiable follicles. It addresses one important part of acne biology, which is sebaceous gland activity.

Comedonal acne, hormonal acne and widespread inflammatory disease often need additional treatment. I therefore use this procedure within a plan that also considers pore blockage, inflammation, pigmentation risk and maintenance.

Selective sebaceous gland ablation at The Skin Longevity Clinic

Dr Rachel Ho is the founder of The Skin Longevity Clinic and has more than 16 years of clinical experience in Singapore. Her acne approach combines medical treatment, sebaceous gland focused procedures, barrier support and early scar prevention.

The clinic is located at 9 Scotts Road, #06-05 Scotts Medical Center at Pacific Plaza, Singapore 228210, near Orchard Road.

Book a Consultation

Common questions before treatment

Can acne return after treatment?

Recurrence remains possible; the initial pilot reported relapse in two of 12 patients within one year1. The intended outcome and review plan should be discussed without promising a permanent cure.

Can this replace my acne medication?

Treatment changes depend on the acne pattern and previous response, rather than the decision to book a procedure4. Discuss the medicines you already use before making any adjustments.

Is this the RF treatment used for acne scars?

Selective gland treatment and fractional RF use related technology but differ in their treatment pattern and intended target3. Our fractional RF microneedling page covers the scar and texture procedure.

Does it treat blackheads and whiteheads?

Selected blocked follicles may be treated, although widespread comedonal acne usually responds better to retinoids, salicylic acid, extraction or chemical peels.

Is it suitable for hormonal acne?

Hormonal acne can benefit when the same inflamed follicles repeatedly recur. Ongoing hormonal stimulation can still create acne elsewhere, so medical or hormonal treatment may remain necessary.

References

  1. Lee JW, Kim BJ, Kim MN, Ahn GY, Aso H. Selective sebaceous gland electrothermolysis as a treatment for acne: a prospective pilot study. International Journal of Dermatology. 2012;51(3):339 to 344. doi:10.1111/j.1365-4632.2011.05255.x
  2. Ahn GR, Kim JM, Park SJ, Li K, Kim BJ. Selective Sebaceous Gland Electrothermolysis Using a Single Microneedle Radiofrequency Device for Acne Patients: A Prospective Randomized Controlled Study. Lasers in Surgery and Medicine. 2020;52(5):396 to 401. doi:10.1002/lsm.23152
  3. Zhang X, Zhou M, Liu Y, Zeng R. Recent advances in the treatment of acne using radiofrequency techniques. Lasers in Medical Science. 2024;39:92. doi:10.1007/s10103-024-04039-6
  4. Reynolds RV, Yeung H, Cheng CE, et al. Guidelines of care for the management of acne vulgaris. Journal of the American Academy of Dermatology. 2024;90(5):1006.e1 to 1006.e30. doi:10.1016/j.jaad.2023.12.017
  5. US Food and Drug Administration. Potential Risks with Certain Uses of Radiofrequency (RF) Microneedling. Safety Communication. 15 October 2025. fda.gov