This is how every Crownlore guide is built. It shows where our information comes from and where it stops.
We read the label and the maker’s page
For oils and ancestral ingredients we start with origin and sourcing, whether the oil is cold-pressed or refined, the full ingredient list, any additives or fillers, and price per ounce. For brands we look at formulation, the evidence behind the claims, and how clearly the company explains both.
We check claims against published sources
Statements about what an ingredient does are compared with published cosmetic science and research. Where the evidence is thin, the guide says so, and we keep what a study found separate from what a label promises.
We do not run hands-on tests
Crownlore does not buy products for lab or on-hair testing, and we do not publish before-and-after photos or personal results. What you read is research and ingredient analysis, and each guide shows where its numbers come from.
We stay cosmetic
Hair and scalp care here is cosmetic guidance, not medical advice. If you have hair loss, a painful or flaking scalp or a skin reaction, see a dermatologist before you try a new oil or serum.
How we earn money
Some links are affiliate links, and as an Amazon Associate we earn from qualifying purchases. Commissions never change what we recommend. See our affiliate disclosure.
Updates and corrections
Guides show the date they were last updated, and we revise them when a label, formulation or study changes. If you spot an error, send it through our contact page and we will check it.