No, they have completely different mechanisms.
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Botox: It works by temporarily relaxing the facial muscles. It “freezes” wrinkles or prevents the muscle from folding the skin. (e.g., frown lines, crow’s feet). It does not add volume.
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Filler: As the name suggests, it fills the void. It adds volume under the skin to raise depressions or shape the face. (e.g., lip augmentation, cheekbone enhancement).