The Skinventry blog
What is in the things you buy, and who is behind them. Ingredients, materials, label claims, recalls and the companies that make it all, with every source linked.
Latest Articles
- What Actually Burns When Sunscreen Gets in Your Eyes
Why sunscreen burns your eyes almost never comes down to the UV filter class. We read four Drug Facts labels. The sting is written below the actives. - La Roche Posay Just Shipped a New Sunscreen in the US. Its Biggest Acne Product Is Still Listed as Recalled by FDA.
No 2026 La Roche Posay recall exists. But FDA still lists the brand's 2025 Effaclar Duo benzene recall as Ongoing. Here's the record. - If You Only Buy One Cream for Rosacea, Make It One of These Four. The Fifth Lists a Trigger.
We read 5 rosacea creams' labels against the Rosacea Society's trigger list. Four avoid every one. One lists eucalyptus oil. - Five US Shampoos. Two Still Have Formaldehyde Releasers. Three Reformulated Before Washington's 2027 Deadline.
Washington banned formaldehyde in cosmetics in Jan 2025. The 14 named releasers get until Jan 2027. We read 5 US shampoos. Two still had DMDM hydantoin. - Who Owns Flower Knows? Proya, a Chinese Cosmetics Giant, Took 51% in May 2026
Flower Knows was taken over by Proya Cosmetics in May 2026, and three shades of its new Ulta palette lead with talc. - Which Face Wash Treats Seborrheic Dermatitis? Only Two Actives Actually Do.
Only two Drug Facts actives treat seborrheic dermatitis on the face. The one US bar with pyrithione zinc is being discontinued. We read four labels. - Inside The Outset's Closing: What Was Really in Scarlett Johansson's Night Cream
Scarlett Johansson's The Outset wound down September 28, 2026. On its Night Cream label, niacinamide is the 15th ingredient and hyaluronic acid is 40th. - 'Fungal Acne Safe' Is a Label Nobody Checks. We Read Four Moisturizers.
No regulator defines 'fungal acne safe'. We read four moisturizer labels against the primary research; three still list a fatty acid the yeast can use. - Galderma Is Paying 1.5 Billion Dollars for ZO Skin Health. FDA Lists the Brand's Dark Spot Line as Unapproved.
Blackstone and the Obagi family agreed on October 14 2026 to sell the doctor only skincare brand to Galderma for 1.5 billion dollars. - 3 Korean Sunscreen 'Sprays' You Can Actually Buy in the US. Only One Really Sprays.
FDA added a new sunscreen filter in 2026 but refused the aerosol spray format. Of three Korean 'sun sprays' sold in the US, only one is a true aerosol. - Chemical vs. Mineral Sunscreen for Dark Skin: Neither Fixes the White Cast. A Tint Does.
Chemical or mineral is not the real question. The fix is iron oxides, buried in the inactive list. We read 5 labels and 3 carry them. - So You Want to Try The Ordinary's 1% Retinol. Europe Now Caps Retinol at 0.3%.
The Ordinary's Retinol 1% in Squalane holds 1% pure retinol. A 2024 EU rule caps face products at 0.3% and bars new stock above it. - The 5 Best Face Washes for Sebaceous Filaments, According to Their Labels
Pick a face wash that prints 2% salicylic acid on a Drug Facts panel. CeraVe's Renewing SA Cleanser lists the acid but never says how much. - How to Tell If Your Retinol Is Working in 12 Weeks, Not the One Week Neutrogena Advertises
Retinol studies saw change from week 4 and clearer lines at 12 to 24 weeks. Neutrogena advertises 1 week; Differin's label says up to 3 months. - 6 Korean Beauty Brands Owned by Beauty of Joseon's Parent, Which Wants a 6.8 Billion Dollar IPO
Beauty of Joseon is owned by Goodai Global, a Seoul holding company chasing a 6.8 billion dollar Korea Exchange listing. We dated every deal. - Ultra Violette's Unblock Screen Isn't the First Sunscreen With a New Filter. It's the First One Sold at US Sephora.
Ultra Violette's Unblock Screen hit US Sephora shelves October 2 at 40 dollars for 50 mL. Is the Australian SPF 50 with FDA's new filter worth it? - Is ISDIN the Next Charlotte Tilbury? Puig Is Buying All of It for €1.2 Billion.
Puig agreed to buy the half of ISDIN it didn't own for €1.2 billion. Here is how the Spanish sunscreen brand got here and what is in the US bottle. - Who Owns rhode? e.l.f. Beauty Paid Nearly a Billion Dollars, and the Brand Is Now Inside 500 Sephoras in Europe.
e.l.f. Beauty bought Hailey Bieber's rhode in 2025 for up to a billion dollars. See the SEC filing and what came after: 500 Sephoras across Europe. - Topicals' Faded Serum Advertises Five Dark Spot Fighters. Two Are Likely in Tiny Amounts.
Topicals is private, with a new CEO since September. Its Faded serum advertises five dark spot fighters, and two are likely at 1% or less. - So You Want to Try Neutrogena's New Sunscreen. Know Who's Buying the Company and What's Inside.
Neutrogena belongs to Kenvue, the Johnson & Johnson spinoff Kimberly Clark has agreed to buy. The chain is sourced to SEC filings. - The Sleeping Masks Worth Layering Over Retinol on Perioral Dermatitis Skin
Four sleeping masks compared on their published ingredient lists for layering over retinol on skin prone to perioral dermatitis, and the one to skip. - The 5 Best Face Oils for Sagging Skin of 2026
The best face oil for sagging skin restores lipids and light reflection, not bone or fat pad loss. Five picks compared on ingredients, price and research. - Sunscreen During Pregnancy: What the Advice Says and How 5 Picks Compare
What pregnancy sunscreen advice actually says, and how three European favorites and two US staples measure up on their published filters. - What Over Exfoliation Does to Your Stratum Corneum, and How Long Repair Really Takes
Mild over exfoliation heals in about a week. A stripped barrier takes 2 to 8 weeks. Here is the corneocyte biology behind the timeline. - 5 Sunflower Seed Oils for Acne Prone Skin, Compared on Linoleic Acid
The best sunflower seed oil for acne prone skin comes down to one thing: linoleic acid. Five bottles compared on refinement, labels and price. - The 60 Second Cleansing Rule Was Not Built for Combination Skin
The rule was built for foaming face wash on normal skin. Here's what really happens when you keep it 60 seconds on a combination face. - The 4 Best Eye Creams for Under Eye Bags of 2026: Acure vs Hexapeptide 9
Acure's $19.99 CoQ10 eye cream against three peptide formulas, compared on ingredient lists, prices and the 2025 hexapeptide 9 trial, by type of bag. - 5 Fragrance Free Physical Exfoliants for Sensitive Skin, Compared
The best fragrance free physical exfoliant for sensitive skin is a fine rice or bamboo powder, not a gritty scrub. Here are five worth buying. - Inside the Allies of Skin THE ONE SPF 50 Recall: What 82,596 Bottles Say About How Sunscreen Actually Gets Tested
Allies of Skin recalled every lot of THE ONE SPF 50 Invisible Sunscreen Gel after its own testing came in subpotent. Here is what the FDA action means. - Tocotrienols vs. Tocopheryl Acetate: The Vitamin E in Your Sunscreen That Actually Protects Dry Skin
Dry skin sunscreens list tocopheryl acetate or tocopherol, not the tocotrienol form with the best data. Here's what to buy and how to layer it. - Which Pimple Patch Actually Works on Chest Acne?
Do pimple patches work on chest acne? Yes on shallow drained whiteheads, no on cystic lumps. Five patches compared for body use. - The 5 Best Polyglutamic Acid Essences of 2026, Compared and Ranked
Five polyglutamic acid essences ranked by where PGA sits on the label, what it is paired with and price per mL. A Korean ferment essence came out on top. - So You Want to Dermaplane at Home with Psoriasis. Read This First.
Dermaplaning at home with psoriasis is a Koebner risk. Skip active plaques. If your face is calm, one pass with a covered facial razor is defensible. - What Is Skincare Pilling? The Friction Problem Everyone Mistakes for Flaky Skin
That flaky mess after your moisturizer is usually not your skin peeling, it's product balling up on dead cells. The 60 second test, and the fix for both. - If You Only Buy Two Modeling Masks for Mature Skin, Make It These
Modeling masks firm mature skin for hours, not months. Here is the best value pick and why sealing with petrolatum after peel off matters. - 6 Beauty of Joseon Products for Acne Prone Skin, Compared on Their Formulas
Which Beauty of Joseon products suit acne prone skin, judged on their published formulas. Start with the Glow Serum; save the rich Dynasty Cream for last. - The Best BB Creams for Rosacea Prone Skin: 6 Labels Compared
Six BB creams for rosacea and reactive skin, compared on their published labels: three clear the trigger list, three carry fragrance or essential oils. - A Gentler Skin Cycling Routine for Crepey Skin: 5 Adjustments
A 4 night skin cycling routine is too aggressive for crepey skin's thin barrier. Here are 5 gentler fixes, from slower acids to a peptide night. - Mineral Oil Clogs Pores. A PubMed Paper Says the Opposite.
Is mineral oil bad for your skin? A 2005 study found no comedogenic effect, and the AAD still recommends petroleum jelly for dry, cracked skin. - 5 Fragrance Free Face Oils for Gua Sha, Compared on Their Labels
Fragrance free on the front does not guarantee a clean INCI. The Ordinary's 100 Percent Plant Derived Squalane leads five oils compared for gua sha. - 5 Serums for Freckles and Dark Spots, Compared on Their Actives
Five serums for freckles and dark spots, compared on their active, dose and price. DRMTLGY's kojic acid Hydra Fader is the pick for sensitive skin. - If You Only Buy Two Charcoal Masks for Acne Prone Skin, Buy These
Charcoal absorbs a little oil, but the evidence says clay and salicylic acid treat acne. Five charcoal masks, compared on their labels. - The 4 Best Estée Lauder Eye Creams for Puffiness in 2026
Four Estee Lauder eye creams compared on caffeine, peptides and price against the published puffiness research, plus what no eye cream can fix. - Water Creams Are Booming. The Actives That Fade Dark Spots Are Not in Them.
Water creams hydrate well, but fading dark spots takes an active at a working dose. What the research supports and how to pair one with a water cream. - Ice vs. Salicylic Acid: Which One Fades Strawberry Legs?
Cold constricts blood vessels for twenty minutes and the redness returns. Strawberry legs are clogged follicles, not blood flow. Here is what fades them. - 5 Best Makeup Remover Wipes for Waterproof Mascara, According to Dermatologists
Of five makeup remover wipes compared here, only two list a real oil or silicone solvent for waterproof mascara. Read the ingredient panel before you buy. - 3 Oil Cleansers That Soften Sebaceous Filaments
You cannot dissolve sebaceous filaments. But the right oil cleanser softens the plug so your nose looks calmer. Here are three worth a look. - Which Colloidal Oatmeal Moisturizer Is Right for Dull, Tired Adult Skin?
Dull skin is usually barrier stress, not pigment. Four colloidal oatmeal creams compared on labels and price. One comes from the baby aisle. - Sunscreen Rarely Causes Perioral Dermatitis. A 2025 JAAD Cohort Study Points Elsewhere.
Can sunscreen cause perioral dermatitis? A 2025 JAAD study of 135,163 cases says usually not. Here is what actually triggers the flare. - The 3 La Roche Posay Products Worth Buying for Keratosis Pilaris in 2026
Which La Roche Posay products carry a treatment dose for keratosis pilaris: Lipikar Urea 10%, a 2% salicylic cleanser, and a cream for rest nights. - So You're Layering Hydroquinone and Tretinoin. Read This First.
The wait is a myth. The FDA approved Tri Luma applies tretinoin and hydroquinone together, no gap needed. The real limit is eight weeks. - Cryotherapy Won't Cure Stress Acne. Here Is What the Odacité Cryo Tech Can Do.
A cold stone dipped in ice water can't reach the stress loop behind breakouts. What the Odacité Cryo Tech can do is smaller than its marketing says. - Which Micellar Water Is Right for Mature Skin?
What to look for in a micellar water for mature skin, from fragrance and alcohol to humectants, plus the picks and whether you should rinse it off. - Estrogen Face Cream Is Trending. The Safety Evidence Isn't.
Estriol face cream promises to reverse menopausal skin aging. Here is what the safety evidence actually shows, and who should skip it. - Four La Roche Posay Products for Razor Bumps, Compared. Only Two Fit the Job.
La Roche Posay doesn't sell a razor bump kit. We compared four of its products on ingredients, price and the published research. Two fit the job. - Aquaphor Lip Protectant vs. Supergoop Lip Shield: Which SPF Lip Balm Holds Up on Cracked Lips
Aquaphor's $6 tube and Supergoop's $13 Lip Shield compared on SPF filters, ingredients and price for cracked lips, and which to reapply after a swim. - Does StriVectin Work on Keloid and Hypertrophic Scars? An Honest Read of the NIA-114 Evidence
StriVectin's NIA 114 has zero published trials on keloid or hypertrophic scars. Silicone gel sheeting is the derm first line, backed by 873 patients. - In Defense of Medik8's R-Retinoate Cream for Dry Skin
The $182 Medik8 R Retinoate Day and Night cream, read ingredient by ingredient: where it helps dry skin, where it falls short, and who should skip it. - Gua Sha for Nasolabial Folds: What a 2025 Trial Found, and 4 Moves to Try
A 2025 randomized trial measured small changes in lower face contour after eight weeks of gua sha. What it measured, and four gentle moves to try at home. - Is Malic Acid Safe in a Cleansing Milk? What the FDA, PubMed, and Clinique's INCI Tell Us
A rinse off cleansing milk is the safest place to wear an AHA. Here is the malic acid pharmacology, the FDA rule, and what Clinique puts in the tube. - e.l.f. Whoa Glow vs Supergoop: Which Glow Sunscreen Is the Real Dupe?
Whoa Glow chases Supergoop Glowscreen, not Unseen. We compared the $15 e.l.f. tube's label with the $38 original's. Here is what the gap buys. - The 5 Best Linoleic Acid Oils for Sallow Skin in 2026
Linoleic rich oils like rosehip, safflower and hemp seed support the barrier and melanin turnover. Five picks compared on linoleic content and price. - How to Organize Your Skincare Collection in Seven Rules
Sort by routine, not brand. Date everything on opening day. Seven rules that keep a collection safe, usable, and finishable, plus one worth breaking. - So You Want to Try PanOxyl for Cystic Acne. Read This First.
PanOxyl can help cystic acne if you start at the right strength, store it cool, and know when it isn't enough. What the 2025 FDA tests actually showed. - Korean Sunscreen Mist vs. Japanese Sunscreen Spray: Which One Fits a Glass Skin Morning?
How Korean sunscreen mists and Japanese sunscreen sprays differ by base, filters and brand claims, plus three Korean mists and sprays worth a look. - The 5 Drugstore Eye Creams Worth Buying for Crow's Feet
Five drugstore eye creams for crow's feet, compared on published labels. None discloses its active's dose, so here is what the evidence says to expect. - 7 Skincare Buzzwords the FDA Has Never Defined
Seven label words promising safety, science, or skin trust that the FDA explicitly doesn't regulate. What they actually mean on the bottle. - Inside the SPF Number: Why You Get a Fraction of It
The SPF on the bottle comes from a lab dose almost nobody applies. At real amounts, an SPF 50 can act like SPF 7. How much you actually need. - Cysteamine 5% on Melasma: What 12 Weeks Looks Like in the Research
What the trials show cysteamine 5% does to melasma over 12 to 16 weeks, why the early weeks look like nothing, and what to know about the smell. - Hypoallergenic Is a Marketing Word, Not a Medical One.
The FDA never defined it. Its 1975 rule was gone by 1977. Here is what brands actually mean when they print the word. - Which Vitamin C Derivative Is Right for Your Skin Concern?
L ascorbic acid has the strongest evidence, but oxidizes fast. Ascorbyl glucoside is gentler but less potent. How to pick the right form for your concern. - Which Retinoid Is Right for Your Skin Concern?
Adapalene binds skin receptors directly. Retinaldehyde is one step from retinoic acid. Retinol is two. Here is what the clinical evidence supports. - SPF vs. PA Rating: Which Number Actually Guards Against Skin Aging?
SPF only measures UVB protection. The PA rating measures UVA, which drives most visible aging. US labels don't require brands to disclose UVA coverage. - Your Collagen Cream Can't Reach Your Collagen. Here's What Actually Can.
Collagen molecules are 300,000 Daltons, 600 times too large to cross your skin barrier. Here is what actually rebuilds collagen from within. - Vitamin C and Niacinamide Are Not at War. Here Is What the Chemistry Actually Says.
The ban on mixing vitamin C and niacinamide comes from lab conditions that don't exist on your face. The pH that actually matters is inside the bottle. - Your Skin Makes Squalene. Your Moisturizer Uses Squalane. The Difference Is Not a Typo.
Your skin makes squalene, but oxidized squalene triggers breakouts. Squalane in your moisturizer is chemically different. Here's why it matters. - Bakuchiol Is Not Plant Retinol. Here's What the Studies Actually Show.
A 2019 RCT found bakuchiol matched retinol's 20% wrinkle reduction with zero reported irritation, versus retinol's scaling, redness, and stinging. - The 'Non-Comedogenic' Label Was Tested on Rabbit Ears. The Inventor Disproved His Own Test in 1982.
The non-comedogenic label isn't FDA regulated. It traces to a 1970s rabbit ear test its own inventor partly disproved on human skin in 1982. - Skin Flooding Is All Over Your FYP. The Biology Behind It Is Weirder Than TikTok Says.
Damp skin doesn't absorb more product. It swells. And your hyaluronic acid can pull water the wrong direction. Here's what skin flooding actually does. - Your Pores Don't Open or Close. Here's What Actually Changes Their Size.
Cold water doesn't shrink pores. Steam doesn't open them. The myth keeps selling products that can't deliver what they promise. - The Two-Minute Wait Between Skincare Steps Is Made Up. Here's What Actually Matters.
The two minute wait between skincare steps has no real science behind it. Here is what absorption research shows, and the three real exceptions. - Tranexamic Acid Was Made to Stop Bleeding. Now It's in Your Dark Spot Serum.
Tranexamic acid started as a blood-clotting drug. The science behind why it fades hyperpigmentation is surprisingly strong. - Ectoin Is Being Called 'The New Niacinamide.' The Comparison Doesn't Hold Up.
Ectoin is everywhere in 2026 skincare. Here is what this extremolyte actually does, what the research shows, and why the niacinamide comparison fails. - Your Serum Claims '97% Saw Results.' Here Is What That Number Actually Means.
Most skincare 'clinical results' come from self-reported surveys, not controlled trials. Here is how to read the fine print. - How Chronic Stress Ages Your Skin: The Cortisol-Collagen Connection
Cortisol activates enzymes that break down collagen and elastin. No serum can outperform a nervous system in overdrive. - Everyone Says Azelaic Acid and Tretinoin Don't Mix. Dermatologists Prescribe Them Together.
The internet swears you can't combine them. Clinical studies say you should. Here's what the confusion gets wrong about timing. - Jojoba Oil Mimics Your Sebum. That Doesn't Mean What You Think.
Everyone says jojoba oil is the closest thing to your skin's natural oil. The chemistry is more complicated, and so are the results. - Your 'Encapsulated' Serum Might Not Be Encapsulated at All. Here's How to Tell.
Slow-release technology promises gentler actives and better results. But most products don't tell you if it actually works. - Your 'Unscented' Moisturizer Contains Fragrance. Here's What the Label Won't Tell You.
Unscented doesn't mean fragrance-free. Learn what these labels actually mean and how to avoid the ingredients that irritate your skin. - Leave On vs Rinse Off Acids: Most People Use Their AHA Toner Wrong
Leave-on toners and rinse-off peels work completely differently. Here's how to tell which you have and why it matters. - Mineral Sunscreen Doesn't Reflect UV Rays. Here's What It Actually Does.
That 'physical barrier' you've heard about? It's absorbing UV radiation, not bouncing it back. The science behind how mineral sunscreen actually works. - Spicules Aren't Microneedling in a Bottle. Here's What They Actually Do.
The viral K-beauty trend promises microneedling results at home. The science tells a different story, and that difference matters. - Your Label Says Retinol. The Ingredient Order Says Otherwise.
Ingredient lists must run in descending order, but only until each item drops below the 1 percent line. That is where some retinol labels start to lie. - Your Skincare Stopped Working Months Ago. Here's When to Actually See a Dermatologist.
That third retinol isn't going to fix it. Learn the science-backed signs your skin needs professional help, not another product. - Dermatologists Agreed on 23 Barrier Repair Ingredients. Most Creams Miss Them.
Dermatologists just agreed on 23 ingredients that work. Most barrier repair products aren't using them. Here's the science they're missing. - Your Three-Product Routine Is Working. Here's How to Know If It's Ready for More
Dermatologists agree: start simple. But when do you graduate from the basics? Learn the signals that tell you it's time to add complexity. - Your Skin Doesn't Need Fewer Steps. It Needs The Right Ones.
Minimalism is trending, but cutting products randomly ruins skin. Here's the dermatologist-backed method for simplifying without backtracking. - Your Skin's Microbiome Isn't What You Think It Is
Most microbiome skincare doesn't work the way brands claim. Here's what your skin bacteria actually do and how to support them. - Your Retinol Sandwich Is Working. Just Not the Way You Think.
New AAD 2025 data shows the full retinol sandwich cuts tretinoin bioactivity about three times. Here is when that trade off works for you. - Why Your Morning and Night Routines Can't Be The Same
Your skin operates on a 24-hour cycle. Using the wrong products at the wrong time wastes money and can damage your barrier. - Your Niacinamide Serum Might Be Too Strong (Or Hiding Its Real Percentage)
Most products work at 2-5%, but brands rarely tell you that. Here's how to find the concentration that actually matches the science. - Should You Trust AI To Pick Your Skincare?
AI skin analysis tools promise personalized routines from a selfie. But can an algorithm really understand your skin better than you do? - Your Skincare Has Three Different Expiration Systems (And None of Them Make Sense)
PAO symbols, batch codes, and printed dates all claim to tell you when products expire. Here's why they contradict each other and what to actually trust. - Your Skin Feels Worse After Your Routine? Here's What Your Barrier Is Trying to Tell You
That tight, clean feeling after washing isn't healthy. Learn the counterintuitive signs your skincare routine is silently wrecking your barrier. - Why Dermatologists Actually Prefer Synthetic Skincare Ingredients
That 'all-natural' serum might be doing more harm than good. Here's what 80 dermatologists say actually works for your skin. - Why You're Probably Layering Your Skincare Wrong (And How to Fix It)
Dermatologists say three habits ruin most routines: rushing steps, the wrong order, and dry skin. Fix all three in under a minute. - Here's What Peptides Actually Do to Your Skin (And What They Don't)
Peptides are everywhere in 2026, but most people have no idea how they work. The truth is more specific than the marketing suggests. - When 'Dermatologist-Tested' Means Nothing: Decoding the Skincare Claims That Fool You
72% of shoppers say skincare label terms confuse them. 'Dermatologist tested' and 'clinically proven' are unregulated. Here's what to check instead. - The $470 Face Mask Dermatologists Actually Recommend
The 470 dollar CurrentBody Series 2 mask is the one dermatologists cite most, with FDA clearance and three wavelengths. Here's what's worth the investment. - Hypochlorous Acid: The $27 Post-Workout Spray Derms Say Actually Works
Spray hypochlorous acid the minute you finish a workout, then cleanse when you get home. What the gym bag spray does, and what it cannot replace. - Exosomes in Skincare: What the Science Supports So Far
Part biotech breakthrough, part beauty buzzword. Should you actually care about cellular messengers in your serum? - Salmon DNA in Your Serum? Inside the PDRN Trend Taking Over Your Feed
PDRN went from Korean clinic secret to TikTok obsession overnight. Here's what the science actually says, and three products worth trying.