diff --git a/doc/user/content/headless/dictionary-compression/overview.md b/doc/user/content/headless/dictionary-compression/overview.md
index d2a2289cc750a..9bf6c87cb8474 100644
--- a/doc/user/content/headless/dictionary-compression/overview.md
+++ b/doc/user/content/headless/dictionary-compression/overview.md
@@ -13,7 +13,6 @@ Starting in v26.38, dictionary compression will be available (as **public
 preview**) for managed clusters. Dictionary compression reduces the memory that
 [arrangements](/get-started/arrangements/#arrangements) use when a column holds
 the same values repeatedly. Instead of storing a repeated column value each time
-it appears, Materialize stores that value once and has each row reference it.
+it appears, Materialize stores that value once and has each row reference it. This can reduce steady state memory requirements after hydration has completed.
 
-Dictionary compression is off by default. You opt in per cluster with the
-`EXPERIMENTAL ARRANGEMENT COMPRESSION` option.
+Dictionary compression is specified per cluster replica, and is set to off by default. You opt in using the `EXPERIMENTAL ARRANGEMENT COMPRESSION` option, while creating or altering a cluster or cluster replica.