diff --git a/packages/forms/src/validators.ts b/packages/forms/src/validators.ts
index 51bc05f438..ccb37f76fd 100644
--- a/packages/forms/src/validators.ts
+++ b/packages/forms/src/validators.ts
@@ -267,7 +267,11 @@ export class Validators {
    * @description
    * Validator that requires the length of the control's value to be greater than or equal
    * to the provided minimum length. This validator is also provided by default if you use the
-   * the HTML5 `minlength` attribute.
+   * the HTML5 `minlength` attribute. Note that the `minLength` validator is intended to be used
+   * only for types that have a numeric `length` property, such as strings or arrays. The `minLength`
+   * validator logic is also not invoked for values when their `length` property is 0 (for example in
+   * case of an empty string or an empty array), to support optional controls. You can use
+   * the standard `required` validator if empty values should not be considered valid.
    *
    * @usageNotes
    *
@@ -305,7 +309,8 @@ export class Validators {
    * @description
    * Validator that requires the length of the control's value to be less than or equal
    * to the provided maximum length. This validator is also provided by default if you use the
-   * the HTML5 `maxlength` attribute.
+   * the HTML5 `maxlength` attribute. Note that the `maxLength` validator is intended to be used
+   * only for types that have a numeric `length` property, such as strings or arrays.
    *
    * @usageNotes
    *