Comparing the two fragrances…

Houbigant

M. Micallef
Intense
Ô Feminin
Only in Intense
Only in Ô Feminin
Shared character
Both Intense and Ô Feminin share a citrus profile and contain notes of jasmine, lemon, bergamot, neroli, musk, oakmoss, pink pepper, patchouli, and petitgrain.
How they differ
Intense includes notes of ciste labdanum, amber, incense / olibanum, lavender, tarragon, and mate. In contrast, Ô Feminin features rose, orange blossom, sandalwood, vanilla, mandarin, and mandarin orange, resulting in accords described as floral, ambery (oriental), woody, green, sweet, powdery, aromatic, vanilla, and white floral.
Who each suits
Intense is characterized by its specific herbal and resinous additions, while Ô Feminin is defined by its sweet, powdery, and floral qualities.