> For the complete documentation index, see [llms.txt](https://docs.skintype.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.skintype.pro/the-science.md).

# The Science

- [What Are the Baumann Skin Types?](https://docs.skintype.pro/the-science/what-are-the-baumann-skin-types.md)
- [How the Baumann Skin Type Quiz Works](https://docs.skintype.pro/the-science/how-the-baumann-skin-type-quiz-works.md)
- [How Product Recommendations Are Created in Skin Type PRO](https://docs.skintype.pro/the-science/how-product-recommendations-are-created-in-skin-type-pro.md)