In a medium bowl, combine mayonnaise, sour cream, and buttermilk.
Whisk the mixture until smooth and creamy.
Add garlic powder, onion powder, dried dill, and dried parsley.
Season with salt and black pepper, adjusting to taste.
Stir in lemon juice for a zesty kick.
Mix well to ensure all ingredients are evenly combined.
Taste and adjust seasoning if necessary.
Cover the bowl with plastic wrap.
Refrigerate for at least 30 minutes to allow flavors to meld.
Serve chilled over salads or as a dip.