Comparing the two fragrances…

Amouage

Avant-Garden Lab
Opus X
Veil
Only in Opus X
Only in Veil
Shared character
Both Opus X and Veil are floral fragrances that feature rose, geranium, rose oxide, and metallic notes.
How they differ
Opus X focuses on a composition containing ylang-ylang, leather, oud / agarwood, rose centifolia, ambrarome, and a varnish accord. Veil is characterized by a different profile including lemon, iris / orris, aldehyde, amber, patchouli, ginger, woody notes, lavender, lotus, violet, hedione (light jasmine), ozonic notes, aldehydes, iris, chamomile, mineral notes, hedione, and clearwood (patchouli note) or clearwood. Consequently, Veil is described through accords of musk skin, aldehydic, fresh, aromatic, fresh spicy, herbal, metallic, mineral, and ozonic, whereas Opus X does not list unique accords.
Who each suits
Opus X suits those interested in notes of leather, oud / agarwood, and varnish. Veil suits those interested in fresh, aromatic, herbal, and ozonic profiles featuring iris, violet, and mineral notes.