Guides
10 articlesIngredients, technologies and routines explained — with the trade-offs brands leave out.
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How to
Barrier Repair: What Ceramides and Panthenol Do, and What to Buy
Stinging, tightness and sudden sensitivity usually mean one thing. Here is what a damaged barrier is, which ingredients rebuild it, and what to stop doing.
7 min read -
How to
Sensitive Skin: What to Look For on a Label, and What to Avoid
Sensitive and sensitized skin are not the same problem, and the fix differs. A label-reading guide for anyone whose face has started refusing products.
7 min read -
Ingredient guide
Niacinamide and Tranexamic Acid: The Pairing Behind Most Dark Spot Serums
Two ingredients that interrupt pigmentation at different points in the process, which is exactly why they keep showing up in the same bottle.
7 min read -
How to
How to Build a Five-Step Routine Instead of a Ten-Step One
The ten-step routine was never a rulebook. Here is how to decide which five steps earn their place, and what happens to the other five.
7 min read -
Technology deep dive
Fermentation and Encapsulation: Real Technology or Just Good Copywriting?
Two words that appear on half the products in a K-beauty haul. Both describe real processes; neither guarantees a better product. Here is how to tell them apart.
7 min read -
Trend report
Exosomes in Skincare: What We Know and What Not to Expect Yet
The most expensive ingredient in the aisle arrives with real science attached to a delivery method your serum does not use. A careful look at the gap.
7 min read -
Technology deep dive
Spicule Serums and Reedle Sticks: How They Work, and Who Should Avoid Them
Marketed as microneedling in a bottle, spicule serums are neither as dramatic nor as harmless as the name suggests. Here is the mechanism, the tingle, and the skip list.
7 min read -
Ingredient guide
Retinal vs Retinol: What the Difference Actually Means for Your Skin
One conversion step separates them, and that step changes how fast a retinoid works and how much your skin has to put up with. A practical comparison.
7 min read -
Ingredient guide
PDRN in Skincare: Where It Comes From and What It Really Does
Salmon DNA went from clinic treatment rooms to $30 serums in about two years. Here is what PDRN is, what the evidence actually covers, and how to shop for it.
7 min read -
How to
Why Korean and Japanese Sunscreens Feel Different, and How to Pick One
The filter lists are different, the testing systems are different, and so are the textures. A practical guide to reading a Korean or Japanese sunscreen label.
7 min read