Benzac AC Gel — Water-Based Acne Gel, Kills P. acnes, No Antibiotic Resistance
💊 Active Ingredient: Benzoyl Peroxide — Kills bacteria + Exfoliates skin ⏱️ How to Use: Apply a thin layer 1-2 times daily. Start by leaving it on for 10-15 minutes, then rinse off 🍽️ Application Order: After washing and drying your face, before moisturizer and sunscreen 📦 Pack: Water-based gel tube, manufactured by Galderma Thailand ⚡ Highlights: Reduces inflammatory acne by >50% within 4-6 weeks, no antibiotic resistance 🌡️ Storage: Below 25°C, protect from light and heat
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Shipping
Discreet shipping within Thailand — packaging does not identify the product. Customers can review shipping and return conditions per our store policy. Contact our team for any questions.
What is Benzac AC Gel?
Benzac AC Gel is a water-based gel containing benzoyl peroxide, which treats acne by releasing oxygen that kills P. acnes bacteria in clogged pores, while also exfoliating and reducing oiliness. Available in 2.5% (for beginners) and 5% (for severe acne) strengths, in 15g or 60g tubes. Studies show it reduces acne by over 50% within 4-6 weeks without causing resistance.
🛒 15g/60g tube, 2.5% or 5% · authentic · 24-hour dispatch from Intimo Life — consult a doctor or pharmacist before use.
Product Description
Acne Treatment Gel Benzac AC Gel contains Benzoyl Peroxide, the most effective antibacterial agent among topical acne treatments. It works by releasing free-radical oxygen to kill P. acnes bacteria in the pores, while also exfoliating dead skin cells and reducing excess oil. Available in two strengths: 2.5% for beginners and 5% for more severe acne.
📊 Key Facts
Reduces acne by over 50% in 4-6 weeks — Clinical studies confirm significant reduction in inflammatory acne even at low concentrations
No antibiotic resistance — Unlike topical antibiotics, Benzoyl Peroxide kills bacteria through oxidation, so resistance never develops
Water-based gel formula — Absorbs quickly without greasy residue, ideal for oily skin, non-comedogenic
For a gentler alternative, consider Skinoren with Azelaic Acid — less irritation and no fabric bleaching
🏭 Benzac AC Gel is manufactured by Galderma (Thailand) Ltd., a global leader in dermatological skincare products.
⚠️ May cause dryness, peeling, or redness initially. Start with the lower concentration (2.5%) and avoid contact with clothing as the product may cause bleaching.
Medically reviewed by
Supatcheree A., Pharmacist | Sources: StatPearls, NHS, Drugs.com
Last reviewed: 2026-04-17
About Benzac AC
What is Benzac AC?
Benzac AC Gel is a clear, water-based topical gel containing Benzoyl Peroxide, one of the most widely recognized acne treatments for over 60 years.
Benzoyl Peroxide works through three simultaneous mechanisms:
Bactericidal — Releases free-radical oxygen to destroy P. acnes bacteria in pores without causing antibiotic resistance
Keratolytic — Breaks down comedones and unclogs pores
Sebum reduction — Helps reduce excess oil production on the skin
The drug is converted to Benzoic Acid at the skin surface with minimal systemic absorption, making it highly safe when used as directed. Available at Intimo Life in two strengths: 2.5% and 5%.
What is Benzac AC used for?
Benzac AC Gel has three primary uses:
1. Inflammatory Acne
Effective for mild to moderate inflammatory acne, especially papules and pustules, thanks to its powerful bactericidal action against P. acnes.
2. Comedonal Acne
Its comedolytic properties help dissolve blackheads and whiteheads by exfoliating the buildup of dead skin cells clogging the pores.
3. Oil Reduction
Helps control excess sebum production, reducing the oily shine that contributes to acne breakouts.
How to Apply Benzac AC / Dosage
Getting Started (Contact Therapy)
Wash face with a gentle cleanser and pat completely dry
Apply a thin layer of gel to the affected areas
Leave on for 10-15 minutes, then rinse off
Do this once daily (before bed) for the first 1-2 weeks
Once Skin Adjusts
Gradually increase leave-on time (1-2 hours → overnight) and frequency to twice daily, based on skin tolerance.
Choose the Right Strength
2.5% — Best for beginners, sensitive skin, or mild acne
5% — For more severe acne or when 2.5% isn't effective enough
Missed Application
Apply as soon as you remember. If it's almost time for the next dose, skip it. Do not double up.
Side Effects of Benzac AC
Common Side Effects (First 1-2 Weeks)
Dryness and flaking — Most common, caused by the exfoliating action
Redness and burning — More likely with sensitive skin or excessive application
Itching — Usually mild and resolves as skin adjusts
These are normal and typically improve within 2-4 weeks. Start with 2.5%, apply for short periods, and gradually increase.
Special Warning: Fabric Bleaching
Benzoyl Peroxide has bleaching properties — it can discolor clothing, pillowcases, towels, and any fabric it contacts. Use white or dark fabrics you don't mind staining during treatment.
Stop Using Immediately If
Severe swelling, blistering, or hives
Difficulty breathing (severe allergic reaction)
Contraindications & Precautions
Contraindications
Allergy to Benzoyl Peroxide or any other gel components
Broken skin, sunburn, or severely irritated skin
Precautions
Pregnancy — Category C; consult a physician before use
Breastfeeding — Unknown if excreted in breast milk; consult a physician
Children under 12 — Not recommended unless under medical supervision
Sensitive areas — Avoid contact with eyes, mouth, nose, or mucous membranes
Fabric contact — The product bleaches fabrics; allow to dry completely before dressing
How Does Benzac AC Compare to Other Acne Treatments?
Benzac AC (Benzoyl Peroxide) has unique strengths compared to other topical acne treatments:
Acnetin-A is a retinoid that also reduces wrinkles but causes photosensitivity and is contraindicated in pregnancy. Benzac kills bacteria more effectively and doesn't cause sun sensitivity, but has no anti-aging benefits.
Skinoren is gentler, doesn't bleach fabrics, and treats melasma, but has weaker antibacterial action. For severe inflammatory acne, Benzac is more suitable.
Benzac AC vs Topical Antibiotics (Clindamycin)
Topical antibiotics like Clindamycin are effective but can cause antibiotic resistance with prolonged use. Benzac doesn't have this issue, which is why it's often combined with Clindamycin to prevent resistance.
Can Benzac AC Be Used with Other Products?
Benzoyl Peroxide pairs well with some products but has important cautions:
Adapalene (Differin) — BP+Adapalene combination is a gold-standard acne treatment
Moisturizer — Apply after Benzac to combat dryness; highly recommended
Sunscreen — Apply as the last step in the morning routine
Caution / Avoid
Older Tretinoin formulations — BP degrades Tretinoin; separate timing (BP morning, Tretinoin evening)
Topical Dapsone — Combined use may temporarily turn skin and facial hair yellow/orange
High-concentration AHA/BHA — Intensifies irritation; separate timing
How Long Does Benzac AC Take to Work?
Results Timeline
Weeks 1-2: Adjustment period — dryness, peeling, redness may occur. Acne may not yet improve
Weeks 2-4: Inflammatory acne starts to decrease, skin begins to smooth out
Weeks 4-6: Clear improvement — acne reduced by over 50%
Weeks 8-12: Full results — clearer skin, significantly fewer new breakouts
Duration of Use
Can be used long-term as it does not cause antibiotic resistance. If no improvement within 4-6 weeks, consult a physician. May need to increase from 2.5% to 5%.
Where Can I Buy Benzac AC?
Can I buy Benzac AC online?
Yes, you can order Benzac AC Gel online through Intimo Life. Available in both 2.5% and 5% concentrations, in 15g and 60g sizes, starting from 140 THB. All orders ship in discreet, unmarked packaging.
Which strength should I choose?
If you've never used Benzoyl Peroxide before, start with 2.5% — it's less irritating but nearly as effective. Upgrade to 5% only if needed.
How does Intimo Life ship?
Delivery within Thailand in plain packaging with no product details visible. Orders placed today are dispatched within 24 hours.
⚠️ Disclaimer
The information on this page is for general informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment from a qualified doctor or pharmacist. If you have any questions about your symptoms or medication, always consult a doctor or pharmacist first.
Yes. Benzoyl Peroxide has bleaching properties that can discolor clothing, pillowcases, and towels on contact. Use white or dark pillowcases you don't mind staining, and wait for the gel to dry completely before going to bed.
The 2.5% is ideal for beginners and sensitive skin — less irritating but nearly as effective at killing bacteria. The 5% is for more severe acne or when 2.5% isn't enough. Always start with 2.5% first.
Yes, but don't start that way. Begin with 10-15 minutes then rinse. Gradually increase to 1-2 hours, and only leave overnight once your skin has fully adjusted. This prevents severe irritation.
Mild purging can occur as Benzoyl Peroxide exfoliates skin and pushes out existing comedones beneath the surface. This is normal and typically improves within 2-4 weeks. If it worsens significantly, reduce frequency or consult a physician.
Both approaches work. For isolated pimples, spot treatment is fine. For widespread acne or prevention, apply a thin layer across the entire acne-prone area. Avoid the eye area and lips.
Yes, but separate the timing — Benzac in the morning, Tretinoin at night. Older Tretinoin formulations can be degraded by Benzoyl Peroxide, and simultaneous use intensifies irritation. Newer microsphere Tretinoin formulations are more compatible.
Benzoyl Peroxide is Pregnancy Category C — insufficient human studies. However, it has minimal systemic absorption and is converted to harmless Benzoic Acid. Consult your physician before using during pregnancy.
Benzoyl Peroxide is not designed to fade dark spots directly, but it prevents new inflammatory acne that causes them. To treat existing dark spots, combine with depigmenting agents like Azelaic Acid or Vitamin C.
Benzoyl Peroxide does not cause photosensitivity, unlike retinoids. However, skin may be more delicate than usual from the exfoliating effect, so daily sunscreen is still recommended.
Possibly. Benzoyl Peroxide controls bacteria and pore blockage rather than permanently curing acne. Bacteria may repopulate after stopping. It is safe for continuous long-term use to maintain results.
Related Products
Products with the same active ingredient or treating the similar condition.
Acnetin-A
Skinoren Cream
Clinda-M
Differin Gel
