Methodology
How we review
We do not run a testing lab, and we will not pretend to. This is the exact, reproducible method behind every score on the site — read it and hold us to it.
The honest part, up front: everyone in this category claims a lab and a testing count. We have neither. What we have is a documented desk method a reader — or a Google quality rater — can verify. That is the trade, and we think it is a better one than a borrowed credential.
The six steps behind every score
1. Decode the ingredient list
For every product we read the full INCI list and identify the actual ceramide types present— NP, AP, EOP, or the older 1 / 3 / 6-II numbering — and roughly where they sit in the list (earlier generally means more of it). A front label that says “ceramides” tells you nothing on its own; the ingredient list tells you which ones.
2. Check for the barrier trio
Your skin barrier assembles ceramides alongside cholesterol and fatty acids, in roughly a 1:1:1 to 3:1:1 ratio. We note whether a formula pairs its ceramides with those partners or ships ceramides alone — because the trio is what the barrier actually uses.
3. Compute the cost-per-ounce
We divide the live price by the package size to get a real cost-per-ounce, so “expensive” is a measured number rather than an impression. This is the figure that most often flips a verdict — a $90 jar and a $12 tub frequently contain the same three ceramides.
4. Flag suitability
From the ingredient list we flag what we can defend: fragrance-free, non-comedogenic, and — where readers ask for it — whether a formula is commonly considered fungal-acne (malassezia) safe. Each flag traces to the INCI, and we say when a judgment is uncertain.
5. Cite the sources
Every ceramide-type claim cites the manufacturer's official listing or spec sheet. Every general science claim cites an authoritative dermatology or peer-reviewed source — not another roundup. Sources are listed at the bottom of each page.
6. Score against a published rubric
Each product is scored 0–10 on five axes, and the overall score is their mean:
- Ceramide profile — which ceramide types are disclosed, and whether the barrier trio is present.
- Barrier support — the occlusion-and-humectant balance for a compromised barrier.
- Suitability — fragrance-free, non-comedogenic, tolerance for reactive skin.
- Formulation — texture, elegance, and any genuinely useful extras.
- Value — the live cost-per-ounce, not the sticker price.
These scores are judgments from documented research, not measurements we took in a lab. We are transparent about that on every page, because the alternative — implying a lab we do not have — is the exact dishonesty this site was built to avoid.
What we never do
- Invent prices, ratings, or review counts. Prices render only from a live data feed.
- Claim hands-on lab testing or owned test units.
- Claim medical or dermatology credentials we do not hold.
- Let a commission decide a verdict.
Freshness
Prices are re-verified continuously and stamped with a date; when a price is older than 48 hours it disappears rather than going stale. Product pages are re-checked quarterly for new entrants and reformulations — barrier creams get reformulated, and the ingredient list is the only thing that matters, so we re-read it.
Questions about the method, or think we got a call wrong? Tell us — corrections are handled openly per our editorial policy.