topicZinc Acne Meta-Analysis
claimNational Institute for Health and Care Excellence (NICE) guidelines recommend azelaic acid in combination with oral antibiotics for moderate-to-severe acne or as a second-line monotherapy option if adapalene/BPO combinations are not tolerated.
evidence level3
citationSearle Tamara N (2026)
sourceCosmeceuticals in acne vulgaris: from mechanism of action to clinical application
topicZinc Acne Meta-Analysis
claimStronger clinical support exists for the use of retinol, BPO and azelaic acid, while other cosmeceuticals such as niacinamide, zinc, tea tree oil and green tea could be promising adjuncts, although there is less robust evidence to support their use.
evidence level3
citationSearle Tamara N (2026)
sourceCosmeceuticals in acne vulgaris: from mechanism of action to clinical application
topicZinc Acne Meta-Analysis
claimMany current studies use formulations with multiple ingredients, making the assessment of individual component efficacy challenging; larger randomized controlled trials (RCTs) with standardized outcome measures are required, and most research is based on mild-to-moderate acne, demonstrating a gap in the clinical evidence for studies on the use of cosmeceuticals in more severe acne.
evidence level3
citationSearle Tamara N (2026)
sourceCosmeceuticals in acne vulgaris: from mechanism of action to clinical application
topicZinc Acne Meta-Analysis
claimacnes Melaleuca arternifolia C. acnes 1 2 Cosmeceuticals are topical treatments with biologically active properties that may provide therapeutic effects without the requirement for a doctor’s prescription.
evidence level3
citationSearle Tamara N (2026)
sourceCosmeceuticals in acne vulgaris: from mechanism of action to clinical application
topicZinc Acne Meta-Analysis
claimThese treatments show varying degrees of efficacy and improved safety profiles, but most lack head-to-head comparisons with isotretinoin.
evidence level4
citationTommasino N (2026)
sourceBeyond Isotretinoin: A Narrative Review of Emerging Systemic Therapies for Moderate-to-Severe Acne.
topicZinc Acne Meta-Analysis
claimConclusion Several systemic options beyond isotretinoin have emerged, showing potential in specific subgroups or as adjunctive therapies.
evidence level4
citationTommasino N (2026)
sourceBeyond Isotretinoin: A Narrative Review of Emerging Systemic Therapies for Moderate-to-Severe Acne.
topicZinc Acne Meta-Analysis
claimHowever, further large-scale comparative studies are needed to define their roles within evidence-based acne management algorithms.
evidence level4
citationTommasino N (2026)
sourceBeyond Isotretinoin: A Narrative Review of Emerging Systemic Therapies for Moderate-to-Severe Acne.
topicZinc Acne Meta-Analysis
claimBackground Acne vulgaris is a common inflammatory skin disorder with significant psychosocial impact.
evidence level4
citationTommasino N (2026)
sourceBeyond Isotretinoin: A Narrative Review of Emerging Systemic Therapies for Moderate-to-Severe Acne.