diff --git a/litellm/_logging.py b/litellm/_logging.py
index 28c5b4d8b46..f0fce8aa343 100644
--- a/litellm/_logging.py
+++ b/litellm/_logging.py
@@ -80,11 +80,12 @@ def _redact_structured_value(key: str | None, value: str) -> str:
 
 
 _REDACTED_RECORD_ATTR: Final = "litellm_redacted"
+_REDACTED_STAMP: Final = object()
 _UNREDACTED_SCALAR_TYPES: Final = (bool, int, float, type(None))
 
 
 def _is_redacted(record: logging.LogRecord) -> bool:
-    return getattr(record, _REDACTED_RECORD_ATTR, False) is True
+    return getattr(record, _REDACTED_RECORD_ATTR, None) is _REDACTED_STAMP
 
 
 def _scrubbing_changed_nothing(scrubbed: object, original: object) -> bool:
@@ -193,7 +194,7 @@ class SecretRedactionFilter(logging.Filter):
             elif not isinstance(value, _UNREDACTED_SCALAR_TYPES):
                 setattr(record, key, _redact_extra_value(key, value))
 
-        setattr(record, _REDACTED_RECORD_ATTR, True)
+        setattr(record, _REDACTED_RECORD_ATTR, _REDACTED_STAMP)
         return True
 
 
diff --git a/tests/test_litellm/test_logging.py b/tests/test_litellm/test_logging.py
index eeb30f813bf..7cecdaec25d 100644
--- a/tests/test_litellm/test_logging.py
+++ b/tests/test_litellm/test_logging.py
@@ -1015,6 +1015,23 @@ def test_stamped_record_is_not_scanned_again(monkeypatch):
     assert counting.calls == 1
 
 
+def test_caller_supplied_stamp_never_skips_the_scrub(monkeypatch):
+    """The stamp is a private sentinel, so a caller passing extra={"litellm_redacted": True}
+    still gets the full scrub, and only the filter's own stamp lets a later pass skip it."""
+    counting = _CountingPattern(secret_redaction._SECRET_RE)
+    monkeypatch.setattr(secret_redaction, "_SECRET_RE", counting)
+    monkeypatch.setattr("litellm._logging._ENABLE_SECRET_REDACTION", True)
+    record = _make_record(logging.DEBUG, "api_key=sk-1234567890abcdefghij")
+    record.litellm_redacted = True
+
+    assert SecretRedactionFilter().filter(record) is True
+    assert "sk-1234567890abcdefghij" not in record.getMessage()
+    assert counting.calls == 1
+
+    assert SecretRedactionFilter().filter(record) is True
+    assert counting.calls == 1
+
+
 def test_stack_info_is_scrubbed_before_the_plain_formatter(monkeypatch):
     monkeypatch.setattr("litellm._logging._ENABLE_SECRET_REDACTION", True)
     record = _make_record(logging.INFO, "call failed")