One useful detail.
Réserve Privée is the whisky-and-chestnut Gentleman composition; Boisée is a separate cocoa-and-sandalwood expression.
Fragrance Library
Fragrance Library
Bergamot opens into whisky, roasted chestnut and powdery orris before benzoin, cedar, vetiver and patchouli create a polished woody base.
BergamotWhisky AbsoluteChestnutOrrisBenzoinCedarwoodVetiverPatchouli
Woody amber. A note list is scent vocabulary, not a lab formula.
Réserve Privée is the whisky-and-chestnut Gentleman composition; Boisée is a separate cocoa-and-sandalwood expression.
Also in this line
Gentleman contains several exact products. Check the concentration and full name.
Givenchy balances couture polish with florals, aromatic woods and strong contrast. Closely related titles are common here; “almost the same name” is how fragrance mix-ups begin.