The Lab
No BS skincare science
science EWG Skin Deep ratings: why dermatologists ignore them in 2026
Independent critique of the EWG Skin Deep database: how its hazard scores are built, where the methodology breaks, and why most board-certified dermatologists…
September 9, 2026
science Are Parabens Really That Bad? 2026 Review of the Actual Evidence
A careful 2026 review of paraben toxicology, the SCCS opinions, endocrine disruption data, breast tissue studies, and what the real-world evidence supports…
September 7, 2026
science Fragrance Free vs Unscented: The Label Trick Costing Your Barrier
Fragrance free and unscented are not synonyms. One removes fragrance ingredients, the other adds masking molecules. Here is how to read the label the way a…
September 6, 2026
science Natural Skincare: Why the Word Is Misleading and Often Meaningless
A careful look at what natural really means on a cosmetic label, why plant-derived is not automatically safer, and how regulators judge the safety of any…
September 4, 2026
science Clean Beauty Marketing Scam: What Brands Won't Put on the Label
A careful look at the clean beauty label, why free from claims are marketing rather than science, and how regulators actually think about cosmetic ingredient…
September 3, 2026
skin-types Mature skin barrier loss: lipids, hormones and 2026 evidence
A careful look at how the mature skin barrier changes with age and hormones, what the evidence says about lipids, ceramides and estrogen, and how to build a…
September 2, 2026
skin-types Oily skin and sebum: what niacinamide and zinc can do
A careful look at oily skin, gentle cleansing, the limited niacinamide evidence, zinc and when acne needs professional medical care.
August 18, 2026
skin-types Combination skin: definition, signs and routine
Combination skin is more than an oily T-zone. Learn what skin measurements show, what can mimic it, and how to build the right routine.
August 16, 2026
skin-types Dry vs dehydrated skin: differences and care
Dry skin and low surface hydration can overlap. Learn what TEWL and corneometry measure, the limits of home checks, and how to build a gentle routine.
August 13, 2026
science SPF 30 vs SPF 50: the real protection difference
SPF 30 vs SPF 50 explained with real percentages, the 2 mg per cm2 dose problem, UVA versus UVB coverage and what dermatologists recommend for daily use.
August 12, 2026
routines Sunscreen reapplication 2026: reminders that work
Sunscreen reapplication explained: when the two-hour rule applies, what under-application studies found, and what reminder trials actually measured.
August 12, 2026
science EU vs US sunscreen filters: bemotrizinol update
Compare EU and US sunscreen rules after FDA authorization of bemotrizinol, including UVA labels, filter lists and practical buying checks.
August 9, 2026
routines Best tinted SPF for hyperpigmentation: iron oxide
How tinted sunscreens may add visible-light protection for hyperpigmentation, what iron oxides can and cannot prove, and how to apply sunscreen during exposure.
August 7, 2026
science Chemical vs mineral sunscreen: facts and trade-offs
Compare organic and mineral sunscreen filters, current FDA rules, infant guidance and the label details that matter when choosing protection.
August 2, 2026
routines Aging skin routine: useful principles by decade
Build an aging-skin routine around sun protection, tolerance and changing skin needs without prescribing retinoid doses by birthday.
August 1, 2026
routines Eczema barrier care: ceramides, oats and evidence
A conservative eczema routine based on moisturizers, gentle washing and clinician-directed flare treatment, with context on ceramides and oatmeal.
July 31, 2026
routines Hyperpigmentation: hydroquinone, cysteamine and TXA
Compare hydroquinone, cysteamine, tranexamic acid and kojic acid without mixing topical, oral and procedural evidence or overstating small trials.
July 27, 2026
routines Rosacea skincare routine: evidence and cautions
Build a gentle rosacea skincare routine, understand phenotype-based care, common triggers and when prescription treatment needs a clinician.
July 26, 2026
product-reviews Paula's Choice vs SkinCeuticals: serum comparison
A label-based Paula's Choice vs SkinCeuticals comparison of 2% BHA Liquid and C E Ferulic: disclosed actives, use cases, prices to check and evidence limits.
July 25, 2026
routines Adult acne routine: evidence and pregnancy cautions
Build a cautious adult acne routine, choose one evidence-based active, understand pregnancy limits and know when painful or scarring acne needs care.
July 23, 2026
product-reviews Sunday Riley Good Genes dupes: 6 budget alternatives
Sunday Riley Good Genes dupes compared: 6 budget lactic acid serums that match the results, with prices, concentrations and peer-reviewed evidence.
July 22, 2026
product-reviews Drunk Elephant vs Dr. Dennis Gross: which is worth it
Drunk Elephant vs Dr. Dennis Gross compared by formula, price and results: vitamin C, peptides, glycolic peel pads and honest buying picks.
July 17, 2026
product-reviews COSRX vs Beauty of Joseon: Which Brand Is Better?
COSRX vs Beauty of Joseon compared by formula, price and skin fit: snail mucin vs rice and ginseng, gentle actives and honest buying picks.
July 16, 2026
routines Melasma skincare: evidence-based actives that fade pigment
A source-based review of melasma actives, from tranexamic acid and azelaic acid to sunscreen, with the clinical evidence behind each.
July 15, 2026
product-reviews The Ordinary vs The Inkey List: which dupe brand wins 2026
Independent The Ordinary vs The Inkey List comparison: pricing, INCI transparency, actives lineup and beginner fit, with peer-reviewed sources and clear picks.
July 10, 2026
product-reviews Cetaphil vs Avène for Sensitive Skin: Which Wins?
Independent Cetaphil vs Avene comparison for sensitive skin: cleansers, moisturizers, thermal spring water, price and evidence, with clear picks by concern.
July 10, 2026
product-reviews Tatcha vs SK-II: Is Luxury J-Beauty Worth $200 in 2026
Tatcha vs SK-II compared by formulation: galactomyces vs Pitera, per-ml cost, the real science on fermented ferment filtrate, and who should splurge in 2026.
July 9, 2026
product-reviews CeraVe vs La Roche-Posay: barrier brands head to head
Independent CeraVe vs La Roche-Posay comparison: ceramides, niacinamide, thermal water and prebiotics, with peer-reviewed evidence and skin-type fit.
July 3, 2026
ingredients Azelaic Acid 10% vs 20%: Which Strength Is Better?
Compare azelaic acid 10% vs 20% for acne, rosacea and dark spots. Learn when OTC 10% is enough and when prescription strength may work better.
July 2, 2026
ingredients Salicylic acid vs glycolic acid: BHA or AHA in 2026
Salicylic acid (BHA) or glycolic acid (AHA)? A dermato-cosmetic breakdown of how each exfoliant works, which skin type it suits, and how to use them safely.
June 30, 2026
ingredients Ceramides 1, 2 and 3: which ratio repairs your barrier
Ceramides 1, 2 and 3 do different jobs in your skin barrier, and the 3:1:1 ratio with cholesterol and fatty acids is the one with real evidence. Honest guide.
June 30, 2026
ingredients Peptide categories: signal, carrier, enzyme, neuro
The four peptide families in skincare decoded: signal, carrier, neurotransmitter and enzyme-inhibiting, with the evidence behind Matrixyl and copper peptides.
June 29, 2026
ingredients Hyaluronic acid molecular weight: HMW vs LMW vs oligo
HMW vs LMW vs oligo hyaluronic acid: HMW sits on top to hold water, LMW slips deeper to plump, oligo stays near the surface. Evidence based guide.
June 29, 2026
ingredients Vitamin C: L-Ascorbic Acid vs Derivatives
L-ascorbic acid is the gold standard, but SAP, MAP, THD ascorbate and ethyl ascorbic acid all have their place. Evidence-based vitamin C comparison.
June 27, 2026
ingredients Niacinamide overhyped? The truth dermatologists rarely tell you
Niacinamide is everywhere, but is it as life changing as the marketing says? Evidence-based review of what it does, at what dose, and when it disappoints.
June 26, 2026
ingredients Retinol vs retinal: which one works better in 2026
Retinol vs retinal explained: retinal is one step closer to retinoic acid and works faster, while retinol is gentler and cheaper. Evidence-based comparison.
June 25, 2026
guides How to Read an INCI List: Decode Skincare in 5 Minutes
Learn how to read an INCI list fast: the descending-order rule, the 1% line, hero actives and the marketing tricks the ingredient list quietly hides.
June 23, 2026
routines Cicatrices d'acné : estompez les taches post-inflammatoires
The best products for acne scars and post-inflammatory marks: which actives fade them, what only a dermatologist can fix, and how long it really takes.
June 23, 2026
ingredients Peptides in skincare: are they worth the hype?
What peptides actually do in skincare, the evidence behind Matrixyl and copper peptides, why most serums underdose them, and how to spot one worth buying.
June 18, 2026
routines Best Eye Creams: Do You Even Need One? What Dermatologists Say
An evidence-based guide to eye creams: whether you need one, which ingredients may help dark circles, puffiness and fine lines, and how formulas compare.
June 17, 2026
guides Is Drunk Elephant Worth the Price? An Honest Ingredient Review
An evidence-first Drunk Elephant review: the Suspicious 6 marketing, hero products that earn their price, the overpriced skips, and who should actually buy.
June 16, 2026
science Mineral Oil in Skincare: Benefits, Safety and Myths
What mineral oil and petrolatum do in skincare, whether they are safe, the cancer and pore-clogging myths, and the cosmetic vs industrial grade split.
June 13, 2026
science Are parabens safe? What the science actually says
Parabens, preservatives, endocrine disruptors, the 2004 Darbre study, FDA and EU rulings, the short chain vs long chain split, and what to use instead.
June 12, 2026
ingredients Silicones in skincare: are they safe? The dimethicone debate
What silicones actually do in skincare, whether dimethicone is safe, the pore-clogging myth, the D4/D5 environmental rules, and how to read a label.
June 11, 2026
ingredients Bakuchiol vs Retinol: Is the Natural Alternative as Effective?
Bakuchiol vs retinol, compared on real evidence. Efficacy, side effects, sun sensitivity, pregnancy and which one fits your skin, with peer-reviewed sources.
June 8, 2026
guides COSRX : Top produits K-beauty classés par efficacité
COSRX guide ranking the brand's best K-beauty products by formulation, from Snail 96 Mucin to the BHA liquid, plus dupes, routine stacks and honest skips.
June 6, 2026
guides Hada Labo Complete Guide: Japan's Best-Selling Skincare Ranked
Hada Labo guide ranking Japan's best-selling lines by formulation: Gokujyun, Shirojyun, Premium and more, plus how to layer them properly.
June 4, 2026
routines Best Cleansers for Sensitive Skin: Gentle Formulas Ranked
Cleansers for sensitive skin compared by surfactant type, pH and soothing actives, with options for rosacea- and eczema-prone skin.
June 3, 2026
ingredients Azelaic Acid: The Most Underrated Ingredient for Acne and Rosacea
Azelaic acid quietly outperforms most actives for acne, rosacea and dark spots. A guide to concentrations, products and what the evidence really shows.
June 3, 2026
ingredients Ceramides explained: why your skin barrier needs them
What ceramides actually do, the nine types in skincare, why the 3:1:1 ratio matters, and how to choose a barrier cream that works, with evidence.
June 1, 2026
skin-types Rosacea skincare routine: what to use and what to avoid
A dermato-cosmetic guide to building a rosacea skincare routine. The ingredients to avoid, the actives that actually calm flushing, and how to layer them.
June 1, 2026
routines Sérums hyperpigmentation : meilleurs anti-taches 2026
A dermato-cosmetic guide to the best serums for hyperpigmentation and dark spots. Which actives fade pigment, how to layer them, and what the evidence says.
May 29, 2026
routines Slugging with Vaseline: what dermatologists actually think
A dermato-cosmetic review of slugging with petroleum jelly. What occlusion does to your barrier, who should try it, and how to do it without breakouts.
May 29, 2026
science SPF : 10 erreurs que vous faites avec la crème solaire
Ten stubborn SPF myths examined against published guidance, from base tans and SPF 100 to indoor exposure and chemical filters.
May 29, 2026
routines Skin cycling: does this TikTok trend actually work?
An evidence-based review of skin cycling: what the four-night protocol may do for your barrier and how to adapt it to your skin.
May 28, 2026
science Best anti-aging ingredients ranked by clinical evidence
An evidence-graded ranking of the best anti-aging ingredients in skincare, from tretinoin and SPF to peptides, bakuchiol and overhyped extracts.
May 27, 2026
science Double cleansing: is it worth it? What the science says
Is double cleansing actually backed by science? A formulation-led guide to oil and water cleansers, who benefits, common mistakes, and what evidence shows.
May 27, 2026
ingredients Sérum Vitamine C : Formes, concentrations et efficacité
A dermato-cosmetic guide to vitamin C serums: which form to choose (L-ascorbic acid vs derivatives), ideal concentration, pH, and how to layer in your routine.
May 25, 2026
ingredients Salicylic acid vs benzoyl peroxide: which is better for acne?
Salicylic acid or benzoyl peroxide? A dermato-cosmetic breakdown of how each ingredient works, which acne type it suits, and how to combine them safely.
May 24, 2026
routines Acne Skincare Routine: Four Evidence-Based Steps
A practical acne skincare routine with evidence-based AM and PM steps, ingredient options by acne type, and products scored by SkinScore.
May 22, 2026
routines K-beauty Routine Explained: What Science Actually Supports
Dermato-cosmetic deep dive into the K-beauty routine: 4 essential steps backed by science, 6 optional layers, and how to build your own.
May 21, 2026
guides The Ordinary Complete Guide: Every Product Ranked and Reviewed
The Ordinary guide ranking every major product by formulation, evidence and skin-type fit. Best buys, biggest skips, conflicts to avoid and a routine builder.
May 18, 2026
ingredients Acide hyaluronique : 5 erreurs qui assèchent votre peau
Hyaluronic acid mistakes can dry out your skin instead of hydrating it. Learn the 5 most common errors, the science behind them, and how to fix your HA routine.
May 16, 2026
routines Best Sunscreen for Oily Skin: No White Cast, No Grease
The best sunscreen for oily skin combines SPF 30 to 50, fluid texture, non-comedogenic filters and sebum control. Ingredient breakdown and application tips.
May 11, 2026
product-reviews La Mer vs CeraVe: the 350 EUR Question Answered by Science
La Mer vs CeraVe: formulation, ceramides vs Miracle Broth, per-gram cost, derm consensus, and the verdict on whether the 350 EUR is worth it.
May 10, 2026
science Fragrance in Skincare: The Hidden Allergen in 60% of Products
Fragrance is the most common allergen in skincare. Which ingredients to avoid, how EU and US rules differ, and the best fragrance-free picks by category.
May 6, 2026
science Niacinamide and vitamin C together: the myth is debunked
Can you mix niacinamide and vitamin C? Modern dermatology says yes. The 1960s lab study behind the myth, peer-reviewed evidence, and how to layer both.
May 3, 2026
routines Skincare Routine Order: Morning & Night Sequence That Works
A practical morning and night skincare order, with layering principles, active ingredient compatibility, and a step-by-step sequence.
April 24, 2026
safety Pregnancy-Safe Skincare: The Complete 2026 Ingredient Guide
Which skincare ingredients to avoid during pregnancy, which are safe to keep, and the evidence from ACOG, NHS, and SCCS behind each decision.
April 22, 2026
ingredients Comedogenic Ingredients: The Complete 2026 List With Ratings
Top 25 comedogenic ingredients ranked on the Fulton scale, plus the ingredients wrongly feared (mineral oil, dimethicone) and the INCI position rule.
April 22, 2026
routines Best Moisturizers for Dry Skin: Formulas Ranked
Moisturizers for dry skin ranked by formulation, including ceramide creams, drugstore and luxury options, and the ingredients with supporting evidence.
April 21, 2026
product-reviews CeraVe vs Cetaphil: Which Is Better for Your Skin?
CeraVe vs Cetaphil compared by ingredients, skin type and value. See which moisturizer fits dry, sensitive, acne-prone or eczema-prone skin.
April 16, 2026
ingredients Retinol for beginners: how to start without wrecking your skin
A science-backed guide to retinol. Which strength to pick, how to apply it, what to avoid, and why most people fail in the first month.
April 14, 2026
ingredients Is niacinamide safe? What dermatology research actually says
Clinical evidence on niacinamide safety: 18 RCTs reviewed, adverse event rates, contraindications, pregnancy data, and concentration response curves.
April 12, 2026