Evidence before hype
Understand the ingredients behind Korean skincare without decoding marketing language on your own. We separate what an ingredient is, what published evidence can support, and what remains uncertain.
Explore this topic
PDRN, PN & salmon-derived ingredients
Learn how the terms differ, why delivery format matters, and where topical skincare evidence is still limited.
Claims & evidence quality
Read studies with the right level of confidence by separating laboratory, clinical, formulation, and marketing evidence.
Barrier-support ingredients
Compare ceramides, humectants, emollients, and soothing ingredients by the job they perform in a formula.
Our standard
We distinguish established facts, reasonable interpretation, and missing evidence. Recommendations are updated when stronger evidence or materially different product information becomes available.
Latest articles
Exosome Skincare Claims: An Evidence-Boundary Guide
Evidence-boundary guide Quick answer Exosome is used across early topical research, professional procedures, medical-development claims, and cosmetic marketing. Those contexts are not interchangeable. Evaluate a skincare product by its exact material, route, formula, study design, intended use, and regulatory claims. A vague exosome label or a study on a different preparation cannot establish finished-product results.…
Sodium DNA vs PDRN on Ingredient Lists
Ingredient-label decoder Quick answer PDRN commonly appears in product names and marketing, while the ingredient list may use Sodium DNA, Hydrolyzed DNA, DNA, a named extract, or a proprietary complex. Do not assume these terms are universally identical. Record the marketed term, the declared ingredient, the supplier or brand explanation, and any disclosed amount as…
Topical vs Injectable PDRN: Why the Evidence Is Not Interchangeable
Route-of-use evidence Quick answer Evidence for injected PDRN, wound-care use, post-procedure application, and an everyday leave-on cosmetic answers different questions. A result from one route cannot be transferred automatically to another because exposure, delivery, formulation, tissue condition, dose, and outcomes differ. A topical serum should be evaluated as its own finished formula, not presented as…
Regenerative Skincare: A Beginner’s Evidence Guide
Regenerative skincare is a marketing category, not one standardized treatment. Learn how to separate cosmetic support from medical-sounding promises.
PDRN vs PN vs Salmon DNA: What the Labels Really Mean
PDRN, PN, Sodium DNA, and salmon DNA are often treated as synonyms. The scientific and commercial terminology is less settled than many product pages imply.
What Is PDRN in Skincare? An Evidence-Led Guide
PDRN is widely used in Korean skincare marketing, but topical cosmetics, injectables, and medical wound-care research are not interchangeable. Here is what the term means—and what the evidence can actually support.