Benzac is a clinically-proven topical treatment specifically formulated for moderate to severe inflammatory acne. Its primary active ingredient, benzoyl peroxide 5%, delivers potent antibacterial and anti-inflammatory action directly to affected areas. This prescription-strength gel works by eliminating acne-causing bacteria (Cutibacterium acnes), reducing excess sebum production, and promoting skin cell turnover. Developed through dermatological research, Benzac represents a targeted approach to acne management that addresses multiple pathogenic factors simultaneously while minimizing systemic exposure.

Features

• Contains 5% benzoyl peroxide as active pharmaceutical ingredient
• Water-based gel formulation for enhanced skin penetration
• Oil-free and non-comedogenic composition
• pH-balanced to maintain skin barrier integrity
• Preservative-free formula reduces irritation potential
• Clinically tested for efficacy and safety
• Suitable for face, chest, and back application
• Available in 50g tubes with precision applicator tip

Benefits

• Rapid reduction in inflammatory acne lesions within 2-4 weeks of consistent use
• Prevents new acne formation by maintaining continuous antibacterial activity
• Helps normalize keratinization process to prevent pore blockage
• Reduces existing hyperpigmentation and prevents new post-inflammatory marks
• Improves overall skin texture through gentle exfoliation
• Minimizes risk of antibiotic resistance compared to antimicrobial alternatives

Common use

Benzac 5% gel is primarily indicated for the treatment of acne vulgaris, particularly inflammatory presentations characterized by papules, pustules, and mild nodules. It is suitable for adolescents and adults with moderate to severe acne that has proven resistant to over-the-counter treatments. The product may be used as monotherapy or in combination with other acne treatments under dermatological supervision. Clinical studies demonstrate effectiveness across various skin types, though adjustment of application frequency may be necessary for sensitive skin.

Dosage and direction

Apply a thin layer to affected areas once daily, preferably in the evening after gentle cleansing with a non-abrasive cleanser. Begin with application every other day for the first week to assess tolerance. If well-tolerated, increase to once daily application. Use approximately a pea-sized amount for the entire face. For chest or back acne, amount may be increased to cover affected areas without excessive application. Wash hands thoroughly after application. Avoid contact with eyes, lips, mucous membranes, and areas of broken skin. Treatment duration typically spans 8-12 weeks for optimal results, with maintenance therapy as needed.

Precautions

Conduct a patch test on a small area of skin (preferably behind ear or inner forearm) before full-face application. Sun sensitivity may increase during treatment; use broad-spectrum sunscreen with SPF 30+ during daytime. Avoid concurrent use with other potentially irritating products (abrasive cleansers, alcohol-based toners, or other topical acne medications unless directed by physician). May bleach colored fabrics, hair, and bedding; ensure complete absorption before contact with materials. Discontinue use if excessive irritation, severe erythema, or peeling occurs and consult prescribing physician. Not recommended for use under occlusive dressings.

Contraindications

Hypersensitivity to benzoyl peroxide or any component of the formulation. Should not be used on patients with history of allergic contact dermatitis to peroxide compounds. Avoid use on sunburned, windburned, or otherwise compromised skin barrier. Not recommended during pregnancy unless potential benefit justifies potential risk (Category C). Use during lactation requires careful consideration of risk-benefit ratio. Contraindicated in patients with severe cystic acne requiring systemic therapy without dermatological supervision.

Possible side effects

Most common: mild erythema (redness), peeling, dryness, and itching at application site, typically diminishing after 2-4 weeks of continued use. Moderate effects may include burning sensation, tightness, or increased sensitivity. Rare but serious: allergic contact dermatitis characterized by severe itching, swelling, or blistering. Hypopigmentation or hyperpigmentation may occur in some patients, usually reversible upon discontinuation. Very rare: anaphylactic reactions require immediate medical attention. Most local reactions are dose-dependent and may be managed by reducing application frequency.

Drug interaction

May inactivate tretinoin if applied simultaneously; separate application by至少 1 hour. Potential interaction with sulfa-containing medications may increase photosensitivity. Concurrent use with other topical medications containing resorcinol, sulfur, or salicylic acid may increase irritation potential. No known systemic interactions with oral medications, though caution advised with photosensitizing drugs (tetracyclines, fluoroquinolones, thiazides). Consult physician before combining with isotretinoin therapy.

Missed dose

Apply as soon as remembered unless close to next scheduled application. Do not double application to make up for missed dose. Maintain regular application schedule rather than increasing frequency after missed doses. Consistency in application contributes more to efficacy than occasional increased dosage. If multiple doses missed, resume regular schedule without adjustment.

Overdose

Excessive application may cause severe erythema, edema, blistering, and pain. Treatment involves immediate discontinuation, gentle cleansing with water, and application of cool compresses. Symptomatic management may include topical corticosteroids for inflammation and emollients for dryness. Systemic absorption is minimal with topical overdose. Seek medical attention if severe reaction occurs or if product is ingested (may cause gastrointestinal irritation).

Storage

Store at room temperature (15-30°C) in original container. Keep tube tightly closed when not in use. Protect from excessive heat and direct sunlight. Do not freeze. Keep out of reach of children and pets. Discard 3 months after opening or by expiration date, whichever comes first. Do not transfer to other containers.

Disclaimer

This information describes benzoyl peroxide 5% gel generally and may not contain all applicable information for the specific product. Always read product labeling and follow prescribed directions. Consult a healthcare professional for diagnosis and treatment recommendations tailored to individual circumstances. Not intended as substitute for professional medical advice. Results may vary based on individual factors including acne severity, skin type, and adherence to treatment regimen.

Reviews

Clinical studies demonstrate 60-70% reduction in inflammatory lesions after 12 weeks of treatment. Dermatologist surveys indicate 84% satisfaction rate among moderate acne patients. User reports note significant improvement in 4-6 weeks with consistent use, though initial dryness is commonly reported. Long-term users appreciate maintenance of results with reduced application frequency. Combination therapy with topical antibiotics shows enhanced efficacy in resistant cases. Real-world evidence supports tolerability across diverse ethnic skin types when properly managed.