How We Research

You should know how the words on this site get here. This page is the rulebook we hold ourselves to — how we choose sources, what we will and won't claim, and what happens when we get something wrong.

Where our information comes from

We rank evidence. Not all studies are equal, and we don't pretend they are.

  1. Randomized, placebo-controlled human trials. The strongest evidence for whether an ingredient does what it claims. We lean on these first.
  2. Systematic reviews and meta-analyses of human trials.
  3. Other peer-reviewed human studies — open-label or observational work. Useful, weaker. We say so when we cite them.
  4. Mechanistic and lab research — cell and animal studies. These explain how something might work. They never support a claim about what you will experience.

Two rules sit on top of that ranking. We cite the primary source — the actual study, not a blog post about the study. And we state doses and durations as the research reports them, because an ingredient tested at one dose says nothing about a different one.

What we will and won't claim

Our formula uses ingredients with published human research behind them, at doses matched to that research. The finished Roral formula has not had its own clinical trial. We tell you that plainly, here and anywhere it matters.

So our claims stay inside the evidence:

  • Each ingredient is described by its own studied effects — we don't blend one ingredient's results into another's.
  • We use qualified language (“helps support,” “helps reduce the appearance of”) because that is what the research supports.
  • We don't make disease, treatment, or anti-aging claims. Roral is a supplement, not a medicine.
  • Every structure/function claim carries the FDA disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Who writes and reviews this content

Articles signed Roral Team are produced by the people who run Roral, following the source rules above. We publish under a collective byline rather than individual names — what the work rests on is the standards on this page, not a personal credential. Every article is fact-checked against primary sources and approved (by a human!) before it is published.

We use the label “medically reviewed” or “scientifically reviewed” only when a qualified, named reviewer has actually performed and documented that review. Right now, no content carries that label. If that changes, the reviewer's name and credentials will appear on the article.

Our conflict of interest, stated plainly

We sell a skin hydration supplement. That is a bias, and you should read our content knowing it. Two things keep it honest: every claim must trace back to the published research above regardless of whether it helps us sell, and every study's limitations are published beside its findings on our Science page — including where the evidence is thin or mixed.

Roral gives 10% of profits to Good Counsel Homes. That doesn't make our science better. It's just who we are.

Dates you can trust

Every article shows when it was published. Two more dates appear when they've been earned:

  • Updated — the content materially changed: new sections, corrected facts, revised claims, or new research incorporated. Fixing a typo or swapping an image does not move this date.
  • Last reviewed — a person re-checked the article against current research and our claim rules, and documented that review. The date changes only when that actually happened — whether or not the review led to edits.

We never bump dates to look fresh. A date on this site means the work behind it happened.

Found an error?

Tell us. Email hello@roral.co with the article link and what you believe is wrong. We check it against the sources. If you're right, we correct the article, update its dates, and — for material errors — note the correction on the page. We'd rather be corrected than be wrong in public.