You can use the enumitem
package:
\documentclass{article}
\usepackage{enumitem}
\usepackage{lipsum}
\setlist[itemize]{leftmargin=*}
\begin{document}
\lipsum[2]
\begin{itemize}
\item \lipsum[2]
\item \lipsum[2]
\end{itemize}
\lipsum[2]
\end{document}

To reduce the size of the symbol used (\textbullet
), you can use \scalebox
from the graphicx
package:
\documentclass{article}
\usepackage{enumitem}
\usepackage{graphicx}
\usepackage{lipsum}
\setlist[itemize]{leftmargin=*,label=\scalebox{.8}{\textbullet}}
\begin{document}
\lipsum[2]
\begin{itemize}
\item \lipsum[2]
\item \lipsum[2]
\end{itemize}
\lipsum[2]
\end{document}
