The short version

Skin Receipts uses three labels.

Research Guide means the answer comes from current labels, product specifications, prices, packaging, and published sources.

Review Consensus means the page also checks recurring themes across public reviews, discussions, and videos. Those themes can show what buyers keep asking or reporting. They cannot prove a clinical result or predict one person’s experience.

Personally Tested means somebody on our team or in our household used the exact product. Missing duration or comparison details stay visible on the page.

None of these labels promises that a product will suit you. Our about page explains the review and rating policy.

How research pages work

Guides and Label Check pages link the papers, labels, and agency pages behind their answers. We say what a source measured and what it cannot prove. We do not write “we tried this” when we did not.

A research comparison can still answer a buying question. It may compare the exact formula, package, size, price, intended job, and public-review patterns, then say who should choose A, choose B, or choose neither. Sensory points such as feel, scent, pilling, and wear stay attributed to public feedback until we check them ourselves.

How review consensus works

Public discussion is sampled to find repeated decision points, not to calculate a product approval score. We record source URLs in the research notes, paraphrase the themes, remove duplicate comments, and do not publish usernames or personal profiles. A bounded sample is never described as “what buyers think” as a whole.

If reviews disagree, the page reports the disagreement. Formula version, climate, routine order, amount used, and expectations may be plausible reasons, but we label those explanations as possibilities unless a source or test establishes them.

A study of one ingredient, concentration, or formula does not prove that every product with that ingredient works the same way. Likewise, one person’s review does not predict everybody’s result.

A consumer spot test is not a diagnosis

The American Academy of Dermatology describes applying a normal amount to a small spot twice daily for 7–10 days as a way to help predict a negative reaction. It says to wash the product off and not use it again if the area becomes red, itchy or swollen. AAD also notes that some ingredients can cause temporary irritation and that medical patch testing may be needed to identify an allergen.

That is useful consumer guidance, not a sensitivity-and-specificity study. A quiet test spot does not prove that a product cannot irritate the face, eyes or another body area, and it does not rule out every delayed or cumulative reaction.

Formal patch testing answers a different question. DermNet describes diluted allergens being applied, commonly on the back, for 48 hours and read at about 96 hours. It is mainly useful for allergic contact dermatitis, not irritant dermatitis; DermNet says baseline series identify about 70% of contact-dermatitis culprits, not every possible cause. A home repeat-open-application test is not a substitute for that clinical process.

What we will not claim

We do not diagnose a rash, promise treatment, or say that a negative spot test guarantees safety. A persistent, severe, or spreading reaction needs a clinician, not a more elaborate home experiment.

One rule matters here: FDA does not require one universal test list for every cosmetic, but an advertising claim still needs support. FDA says there is no single required test list for every cosmetic, while the FTC says an advertiser needs a reasonable basis before making a claim. The claim determines what evidence is relevant.

Sources

This guide explains our process and published guidance. It is not medical or legal advice; seek clinical care for a reaction or wound you are worried about.