A good review should tell you what actually happened.

“Obsessed” is an opinion, not a testing method. A useful review explains the product used, how it was applied, how long it was tried and what the reviewer was looking for. That does not turn one person’s experience into a scientific study, but it does make the account easier to interpret.

Google’s guidance for quality reviews asks publishers to demonstrate their own experience, offer supporting evidence and discuss benefits and drawbacks. Its guidance is about review quality; it is not a certification that a product is safe or effective. Read Google’s review guidance.

A product tried on fine, straight, uncoloured hair may behave differently in another routine. Useful context includes hair texture, length, colour or chemical treatment, other products used and styling habits. A review does not need to disclose a reviewer’s private medical history.

Photographs help only when their conditions are clear. A different hairstyle, lighting setup or wetness can change an image substantially. Before-and-after pictures alone cannot isolate the effect of one product.

“My hair felt easier to detangle” describes an experience. “This repairs everyone’s damaged hair” makes a much broader claim. A careful reviewer keeps those statements separate, identifies claims supplied by the manufacturer and links to evidence when discussing them.

Check whether the author has genuinely used the product. A desk comparison of labels can be useful, but it should be labelled as research rather than presented as hands-on testing.

Was the item purchased, gifted or part of a paid partnership? Does the link earn a commission? Those relationships do not automatically erase the value of a review, but they are relevant information for a reader. In Canada, the Competition Bureau says material connections should be clearly disclosed. Read its guidance.

At Folio & Root, a research explainer is labelled as research. A hands-on review requires documented testing and original observations before it can be called a review. We do not publish invented star ratings or AI-generated “results” photographs. See our editorial approach for the distinction.