Hamza Rivera
Writes the SkinSafeCheck guides.
About the writer
Hamza Rivera is based in the Philippines and works in SEO and GEO/AEO. He writes the guides on this site, from the product and routine guides to the questions about breakouts. His own site, hamzarivera.com, has his background and the work he does for clients.
What the guides stand on
The ratings on this site come from the published comedogenic scale, and each guide names the studies and sources behind what it says, with the paper or page linked where there is one. The guides keep the sources' own limits and their pointers to a dermatologist.