Evidence library

DermNet NZ

Dermatology reference summaries from DermNet NZ.

39 sources · page 1 of 1

Acne ↗
- "Non-Comedogenic" Claims: How Much Should You Actually Trust Them?
Acne treatment (salicylic acid opens clogged pores). DermNet NZ ↗
- Routine combinations
Acne vulgaris: features, types, and treatments ↗
- Acne, explained: the four things going wrong, and what has evidence
Allergic Contact Dermatitis ↗
- Sensitive Skin: Sensory Reaction, Thin Barrier, or Real Allergy?
Allergic Contact Dermatitis to Essential Oils ↗
- "Clean" and "Natural" Beauty Claims: What They Actually Mean
Allergy to ecamsule — ecamsule (Mexoryl SX) FDA-approved in 2006, marketed as Anthelios SX. DermNet NZ ↗
- Korean sunscreen filters vs. the US FDA list
Alpha hydroxy acid facial treatments ↗
- Physical vs. Chemical Exfoliation: What's Actually Happening to Your Skin
Azelaic acid ↗
- Azelaic Acid: The Quiet Multitasker for Acne, Rosacea, and Dark Spots
Bacteria in acne ↗
- Acne, explained: the four things going wrong, and what has evidence
Bacterial folliculitis ↗
- Fungal acne: why your acne routine might be feeding it
Barrier function in atopic dermatitis (filaggrin, NMF, TEWL) ↗
- How the skin barrier works
Benzoyl peroxide ↗
- Benzoyl Peroxide: The Acne Workhorse, Explained
Comedo ↗
- Sebaceous Filaments vs. Blackheads: The Mix-Up Almost Everyone Makes
Comedonal acne ↗
- Sebaceous Filaments vs. Blackheads: The Mix-Up Almost Everyone Makes
Compositae allergy (sesquiterpene lactone contact allergy) ↗
- Mugwort in K-Beauty: What the Science Actually Says About the "Soothing" Ingredient
Contact allergy to propolis ↗
- Propolis in Skincare: What the Bee-Made K-Beauty Ingredient Actually Does
Contact reactions to lanolin (wool alcohols) — a known contact allergen (American Contact Dermatitis Society 2023 Allergen of the Year); prevalence is low (~1.7–3.3% in dermatitis patients, <0.5% general population) but rises with repeated exposure. DermNet ↗
- Baby-safe checker
Cutaneous cysts and pseudocysts ↗
- Milia: Why Those Hard White Bumps Aren't Whiteheads (and You Can't Squeeze Them Out)
Dry Skin (Xeroderma) ↗
- Dehydrated Skin vs. Dry Skin: They're Not the Same, and the Fix Isn't Either
Emollients and Moisturizers (Moisturisers) ↗
- Slugging: What Sealing Your Skin Overnight Actually Does
- Humectants vs. Emollients vs. Occlusives: The Three Jobs a Moisturizer Actually Does
- Does Drinking Water Actually Give You Glowing Skin? Here's What the Studies Show
Enlarged pores ↗
- Do Pores Really Open and Close? What Hot and Cold Water Actually Do
- Enlarged pores: what actually makes them look bigger (and what actually helps)
Fragrance allergy ↗
- Fragrance in Skincare: What the Evidence Actually Says
Hyaluronic acid therapy. Fillers ↗
- Hyaluronic Acid: What the Evidence Actually Says (and the 1,000x Myth)
Hydroquinone (often combined with topical retinoids to increase efficacy). DermNet NZ ↗
- Conflicts & timing
- Results timelines
Irritant contact dermatitis ↗
- How to Patch Test a New Skincare Product (and What It Actually Catches)
- Sensitive Skin: Sensory Reaction, Thin Barrier, or Real Allergy?
- Physical vs. Chemical Exfoliation: What's Actually Happening to Your Skin
- How to Introduce a New Active Without Wrecking Your Skin
- Skin Cycling: What the 4-Night Rule Actually Rests On
Keratosis pilaris ↗
- Keratosis Pilaris ("Chicken Skin"): Why It Happens and What Actually Helps
Melasma (slow to respond; lifelong photoprotection; relapse risk). DermNet NZ ↗
- Routine combinations
Milium, milia ↗
- Milia: Why Those Hard White Bumps Aren't Whiteheads (and You Can't Squeeze Them Out)
Patch tests ↗
- How to Patch Test a New Skincare Product (and What It Actually Catches)
Personal protective equipment ↗
- Maskne: Why Masks Trigger Breakouts, and How to Treat It Without Making It Worse
Pseudofolliculitis Barbae (Razor Bumps): Images and Management ↗
- Men's Skincare Basics: The Honest, Minimalist Routine
Rosacea: symptoms, causes, and management ↗
- Rosacea, explained: what triggers it and what calms it
Salicylic acid ↗
- Sebaceous Filaments vs. Blackheads: The Mix-Up Almost Everyone Makes
- Salicylic Acid (BHA): The Oil-Soluble Exfoliant That Gets Into Your Pores
- Your Scalp Is Skin — What the "Skinification" Trend Gets Right (and Oversells)
Seborrhoeic dermatitis ↗
- Seborrheic Dermatitis and Dandruff: Why the Flaky, Red Patches Keep Coming Back
Soaps and cleansers ↗
- The Korean 10-Step Routine: What Actually Works, and What You Can Skip
Sunscreens: A Complete Overview ↗
- Cushion Compacts: K-Beauty's Genius Format, and Why the SPF Number Can Mislead You
- How to Actually Apply Sunscreen: The Practical Guide
Topical retinoids (dose-limited by irritation; titrate a single agent). DermNet NZ ↗
- Conflicts & timing
- What Order Should You Apply Skincare? The Real Rule (and What's Just Convention)
- How to Introduce a New Active Without Wrecking Your Skin
Urea ↗
- Urea in Skincare: One Ingredient, Two Jobs Depending on the Dose
What causes acne? ↗
- Acne, explained: the four things going wrong, and what has evidence

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