Decoding Labels
Tone-up creams are still around, but a pink brightening base is not automatically sun protection. Three label checks, grounded in FDA guidance, separate real sunscreen from makeup.
5 min read
Decoding Labels
Homemade tallow sunscreen recipes keep circulating. Here is what dermatologists, a 2026 AARP round-up and the FDA say, plus a labeled-sunscreen checklist.
4 min read
Decoding Labels
US rules require ingredients in descending order only down to 1 percent, after which order is free. Here is how to read a label without over-trusting position.
4 min read
Decoding Labels
Counterfeit beauty products turn up on marketplaces as well as street stalls, and a January 2026 lab report found mercury in imported skin-lightening creams. Here is how to judge the seller, not just the box.
5 min read
Decoding Labels
Biotech and fermented are everywhere in 2026 skincare marketing. The term describes how an ingredient is made, not how well it performs. Here is how to read it.
5 min read
Decoding Labels
A viral claim says nearly all Japanese cleansers are harsh. Two small recent studies and the way mildness is actually tested show why a surfactant label is a hint, not proof.
5 min read
Decoding Labels
Unscented can mean masked, fragrance-free means none added, and neither guarantees no odor. Here is how to read a sunscreen label and ingredient list.
4 min read
Decoding Labels
Skin surface pH sits near 4.7 to 5, not the 5.5 on many labels, and the alcohols in toners behave very differently. Here is what three studies support and a one-week test for your own face.
5 min read
Decoding Labels
FDA now targets November 2026 to propose a fragrance allergen disclosure rule. Here is what the word fragrance hides today, what the rule would and would not name, and a patch-test routine for now.
4 min read
Decoding Labels
At-home LED masks promise smoother-looking skin. The research shows a modest signal, small studies and bigger numbers from professional devices than consumer ones.
4 min read
Decoding Labels
Fruit imagery covers two very different ingredient types. Here is how exfoliating acids and polyphenol-rich extracts differ, and what research supports for each.
4 min read
Decoding Labels
Clean is everywhere on skincare packaging, yet US rules do not define it. Here is what the FDA does require of a label and a 60-second way to check any clean claim.
5 min read
Decoding Labels
A 10% niacinamide serum with zinc is a top search, but the best controlled trial used 5%. Here is how to read the label, the pH and the flushing caveat.
5 min read
Decoding Labels
A 2026 lab study found neutral pH roughly doubled niacinamide permeation versus pH 5. Here is what that does and does not mean for choosing a serum.
5 min read
Decoding Labels
Home LED masks and radiofrequency wands have small, short studies behind them. Here is how those trials were designed, what they measured, and how to judge a device claim.
4 min read
Decoding Labels
Two products can share an ingredient list and still differ. Here is what US labeling rules require, where the one-percent line limits comparison, and a five-step dupe check.
4 min read
Decoding Labels
A 2025 Delphi study narrowed 318 candidate ingredients to 23 that 62 dermatologists agreed on. Here is how the list was built, what its evidence levels mean, and what it cannot tell you.
4 min read
Decoding Labels
No head-to-head trial compares cleansing milk with gel on a humid-climate face. Here is what surfactant, pH and occlusion studies do support.
5 min read
Decoding Labels
A viral claim says shampoo cleared a routine in a week. No controlled trial tests it, but cleansing research explains the three properties that decide whether any wash suits facial skin.
5 min read
Decoding Labels
A forearm patch test is the standard first check for a new product, but permeability and irritation studies show skin differs by site. Here is what they measured and what they left open.
6 min read
Decoding Labels
Niacinamide dissolves readily in water, yet products labeled as oils now list it. Here is what the reference data say and how to check a label.
5 min read
Decoding Labels
Retinol percentages may not appear on the label at all. Here is what published research says about forms, stability and tolerability, and a checklist for comparing products.
5 min read
Decoding Labels
Two retinol products at the same percentage can look nothing alike on skin because the cream, gel, or serum carrying the retinol changes how it absorbs, how it feels, and how fast it degrades. Here is what the formulation research actually shows.
5 min read
Decoding Labels
Wart-removal pads and leave-on BHA toners share one active ingredient at very different strengths, formats, and FDA categories. Here is what the percentage on each label is actually telling you.
5 min read
Decoding Labels
Autocomplete now puts hyaluronic acid serum and hyaluronic acid injection side by side, but the FDA regulates one as a medical device and treats the other as a cosmetic. Filler serum marketing has learned to blur that line.
5 min read
Decoding Labels
Zinc oxide and titanium dioxide remain the only two UV filters the FDA lists as generally recognized as safe and effective, so most of the fixes for that gray-white finish had to happen in the pigment, not the filter.
5 min read
Decoding Labels
A Reddit thread keeps comparing TIRTIR and SKIN1004 as if both azelaic acid serums sit at 12%, but only one of them does. Here is what each label actually says, why azelaic acid is unusually hard to formulate at high strength, and why the percentage on the front of the bottle tells you less than shoppers assume.
5 min read
Decoding Labels
The white crumbs under sunscreen are not niacinamide and zinc fighting each other. They are two film layers meeting before either has finished setting, and the fix is timing, not a new serum.
5 min read
Decoding Labels
Eye-area retinol formulas top out around 0.1 percent while facial serums run up to 1 percent. The thinnest skin is the eyelid itself, not the orbital bone where eye cream actually goes, and that changes what the low number on the label is for.
7 min read
Decoding Labels
New shelf-scan data puts niacinamide in over half of US skincare routines, but the concentration race from 2 percent up to 12 percent has outrun the research that built the ingredient's reputation. Here is what the actual studies tested.
7 min read
Decoding Labels
The number on a salicylic acid cleanser bottle is capped by federal rule, but it does not predict how much acid actually reaches a pore before the product gets rinsed away. Here is what the label is telling you, and what it leaves out.
7 min read
