retin a vs tretinoin

How to format posts

Champ uses Markdown for formatting text in posts. Certain markup tags (eg. H1) are forbidden to ensure that pages remain semantically compliant. Other tags are automatically sanitized to ensure all content is secure.

• Emphasis, aka italics, with *asterisks* or _underscores_.
• Strong emphasis, aka bold, with **asterisks** or __underscores__.
• Combined emphasis with **asterisks and _underscores_**.
• Strikethrough uses two tildes. ~~Scratch this.~~
• Links are added automatically, but can be formatted like so: [My link](https://mylink.com)